- \n
- \u4ec0\u4e48\u662fweb3.js\uff1f<\/li>\n\n\n\n
- \u4ee5\u592a\u574a\u5e73\u53f0\u662f\u4ec0\u4e48\uff1f<\/li>\n\n\n\n
- web3.js\u548c\u4ee5\u592a\u574a\u7684\u5173\u7cfb<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u914d\u7f6e\u548c\u521d\u59cb\u5316web3.js\n
- \n
- \u5b89\u88c5\u548c\u5bfc\u5165web3.js<\/li>\n\n\n\n
- \u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc<\/li>\n\n\n\n
- \u521b\u5efaweb3.js\u5b9e\u4f8b<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u4ee5\u592a\u574a\u8d26\u6237\n
- \n
- \u4ee5\u592a\u574a\u5730\u5740\u548c\u79c1\u94a5<\/li>\n\n\n\n
- \u521b\u5efa\u4ee5\u592a\u574a\u8d26\u6237<\/li>\n\n\n\n
- \u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u4f59\u989d<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u4ee5\u592a\u574a\u4ea4\u6613\n
- \n
- \u4ee5\u592a\u574a\u4ea4\u6613\u7684\u7ed3\u6784<\/li>\n\n\n\n
- \u521b\u5efa\u5e76\u7b7e\u540d\u4ea4\u6613<\/li>\n\n\n\n
- \u53d1\u9001\u4ea4\u6613\u5230\u4ee5\u592a\u574a\u7f51\u7edc<\/li>\n\n\n\n
- \u76d1\u542c\u4ea4\u6613\u72b6\u6001<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- \u667a\u80fd\u5408\u7ea6\n
- \n
- \u4ec0\u4e48\u662f\u667a\u80fd\u5408\u7ea6\uff1f<\/li>\n\n\n\n
- Solidity\u7f16\u7a0b\u8bed\u8a00<\/li>\n\n\n\n
- \u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u5230\u4ee5\u592a\u574a\u7f51\u7edc<\/li>\n\n\n\n
- \u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n\n\n\n
- web3.js API\n
- \n
- web3.js\u63d0\u4f9b\u7684API\u548c\u65b9\u6cd5<\/li>\n\n\n\n
- \u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406<\/li>\n\n\n\n
- \u4ea4\u6613\u548c\u5408\u7ea6\u5904\u7406<\/li>\n\n\n\n
- \u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n
\u4ee5\u4e0a\u662f\u4e00\u4e2a\u57fa\u672c\u7684web3.js\u6559\u7a0b\u7684\u5185\u5bb9\u5927\u7eb2\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u5927\u7eb2\u7f16\u5199\u89c6\u9891\u6559\u7a0b\u7684\u6587\u5b57\u5185\u5bb9\u3002\u8bf7\u8bb0\u4f4f\uff0c\u8fd9\u53ea\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u5927\u7eb2\uff0c\u4f60\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u548c\u76ee\u6807\u53d7\u4f17\u8fdb\u884c\u8c03\u6574\u548c\u6269\u5c55\u3002<\/p>\n\n\n\n\n\n
<\/figure>\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ec0\u4e48\u662fweb3.js<\/p>\n\n\n\n
Web3.js\u662f\u4e00\u4e2a\u7528\u4e8e\u4e0e\u4ee5\u592a\u574a\u667a\u80fd\u5408\u7ea6\u4ea4\u4e92\u7684JavaScript\u5e93\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4API\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u5728JavaScript\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4e0e\u4ee5\u592a\u574a\u533a\u5757\u94fe\u8fdb\u884c\u4ea4\u4e92\u3002Web3.js\u662f\u4ee5\u592a\u574a\u533a\u5757\u94fe\u4e0a\u7684DApp\u5f00\u53d1\u7684\u6838\u5fc3\u7ec4\u4ef6\u4e4b\u4e00\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u6784\u5efa\u53bb\u4e2d\u5fc3\u5316\u5e94\u7528\u7a0b\u5e8f\uff08DApps\uff09\u3002<\/p>\n\n\n\n
Web3.js\u5177\u6709\u4ee5\u4e0b\u4e3b\u8981\u529f\u80fd\uff1a<\/p>\n\n\n\n
- \n
- \u4e0e\u4ee5\u592a\u574a\u8282\u70b9\u901a\u4fe1\uff1aWeb3.js\u4f7f\u5f97\u4e0e\u4ee5\u592a\u574a\u8282\u70b9\u8fdb\u884c\u901a\u4fe1\u53d8\u5f97\u7b80\u5355\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528Web3.js\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u4e0e\u8282\u70b9\u8fdb\u884c\u901a\u4fe1\u5e76\u67e5\u8be2\u533a\u5757\u94fe\u4e0a\u7684\u6570\u636e\u3002<\/li>\n\n\n\n
- \u64cd\u4f5c\u4ee5\u592a\u574a\u8d26\u6237\uff1a\u4f7f\u7528Web3.js\u53ef\u4ee5\u521b\u5efa\u3001\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u5305\u62ec\u4ece\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\u68c0\u7d22\u8d26\u6237\u4f59\u989d\u548c\u4ea4\u6613\u5386\u53f2\u8bb0\u5f55\uff0c\u6216\u8005\u53d1\u9001\u4ee5\u592a\u5e01\u6216\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u3002<\/li>\n\n\n\n
- \u4e0e\u667a\u80fd\u5408\u7ea6\u4ea4\u4e92\uff1aWeb3.js\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u4e0e\u4ee5\u592a\u574a\u667a\u80fd\u5408\u7ea6\u8fdb\u884c\u4ea4\u4e92\uff0c\u53ef\u4ee5\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u3001\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7684\u65b9\u6cd5\uff0c\u6216\u8005\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e2d\u7684\u4e8b\u4ef6\u3002<\/li>\n\n\n\n
- \u4e8b\u4ef6\u9a71\u52a8\u7684\u7f16\u7a0b\u6a21\u578b\uff1aWeb3.js\u4f7f\u7528\u4e8b\u4ef6\u6765\u8868\u793a\u533a\u5757\u94fe\u4e2d\u7684\u72b6\u6001\u66f4\u6539\u3002\u8fd9\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u7f16\u5199\u54cd\u5e94\u72b6\u6001\u53d8\u5316\u7684\u4ee3\u7801\uff0c\u800c\u65e0\u9700\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u8fdb\u884c\u8f6e\u8be2\u3002<\/li>\n<\/ol>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0cWeb3.js\u4e3a\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u5355\u800c\u5f3a\u5927\u7684\u65b9\u5f0f\uff0c\u4f7f\u4ed6\u4eec\u53ef\u4ee5\u4f7f\u7528JavaScript\u7f16\u5199\u57fa\u4e8e\u4ee5\u592a\u574a\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4ece\u800c\u66f4\u52a0\u5bb9\u6613\u5730\u6784\u5efa\u53bb\u4e2d\u5fc3\u5316\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ee5\u592a\u574a\u5e73\u53f0\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u5e73\u53f0\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5206\u5e03\u5f0f\u8ba1\u7b97\u5e73\u53f0\uff0c\u5b83\u4f7f\u7528\u4e86\u533a\u5757\u94fe\u6280\u672f\u548c\u667a\u80fd\u5408\u7ea6\u529f\u80fd\uff0c\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u521b\u5efa\u548c\u90e8\u7f72\u53bb\u4e2d\u5fc3\u5316\u5e94\u7528\u7a0b\u5e8f\uff08DApps\uff09\u3002\u4ee5\u592a\u574a\u5e73\u53f0\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u7528\u4e8e\u591a\u79cd\u4e0d\u540c\u7684\u7528\u9014\uff0c\u5982\u6570\u5b57\u8d27\u5e01\u3001\u91d1\u878d\u4ea4\u6613\u3001\u8eab\u4efd\u9a8c\u8bc1\u3001\u7269\u8054\u7f51\u7b49\u9886\u57df\u3002<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u5e73\u53f0\u4e0d\u540c\u4e8e\u6bd4\u7279\u5e01\u8fd9\u7c7b\u5355\u7eaf\u7684\u52a0\u5bc6\u8d27\u5e01\uff0c\u5b83\u66f4\u50cf\u662f\u4e00\u4e2a\u53bb\u4e2d\u5fc3\u5316\u7684\u8ba1\u7b97\u673a\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u5728\u5176\u4e0a\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\uff0c\u8fd9\u4e9b\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u81ea\u7531\u3001\u5b89\u5168\u3001\u900f\u660e\u5730\u8fd0\u884c\uff0c\u4e0d\u4f9d\u8d56\u4e8e\u4efb\u4f55\u4e2d\u5fc3\u5316\u7684\u670d\u52a1\u5668\u6216\u673a\u6784\u3002\u4ee5\u592a\u574a\u5e73\u53f0\u7531\u4ee5\u592a\u574a\u57fa\u91d1\u4f1a\u5f00\u53d1\u548c\u7ef4\u62a4\uff0c\u5176\u6838\u5fc3\u7ec4\u4ef6\u5305\u62ec\u4ee5\u592a\u574a\u865a\u62df\u673a\uff08EVM\uff09\u3001\u4ee5\u592a\u5e01\uff08ETH\uff09\u548c\u667a\u80fd\u5408\u7ea6\u3002<\/p>\n\n\n\n
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\u4ee5\u592a\u5e01\u662f\u4ee5\u592a\u574a\u7f51\u7edc\u7684\u539f\u751f\u52a0\u5bc6\u8d27\u5e01\uff0c\u5b83\u7528\u4e8e\u652f\u4ed8\u4ea4\u6613\u624b\u7eed\u8d39\u548c\u5956\u52b1\u77ff\u5de5\u6316\u77ff\u7684\u8d39\u7528\u3002\u4ee5\u592a\u5e01\u7684\u4ef7\u683c\u6ce2\u52a8\u8f83\u5927\uff0c\u5176\u4ef7\u683c\u7531\u5e02\u573a\u4f9b\u9700\u5173\u7cfb\u51b3\u5b9a\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u4ee5\u592a\u574a\u5e73\u53f0\u4e3a\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u4f7f\u4ed6\u4eec\u80fd\u591f\u6784\u5efa\u53bb\u4e2d\u5fc3\u5316\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u4ece\u800c\u4f7f\u5e94\u7528\u7a0b\u5e8f\u66f4\u52a0\u5b89\u5168\u3001\u900f\u660e\u548c\u53ef\u9760\u3002\u540c\u65f6\uff0c\u4ee5\u592a\u574a\u4e5f\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u52a0\u5bc6\u8d27\u5e01\u5e73\u53f0\uff0c\u5176\u4ee5\u592a\u5e01\u5df2\u6210\u4e3a\u6570\u5b57\u8d27\u5e01\u5e02\u573a\u4e2d\u7684\u91cd\u8981\u4ee3\u5e01\u4e4b\u4e00\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91caweb3.js\u548c\u4ee5\u592a\u574a\u7684\u5173\u7cfb<\/p>\n\n\n\n
Web3.js\u662f\u4e00\u4e2a\u7528\u4e8e\u4e0e\u4ee5\u592a\u574a\u667a\u80fd\u5408\u7ea6\u4ea4\u4e92\u7684JavaScript\u5e93\uff0c\u5b83\u662f\u4ee5\u592a\u574a\u5e73\u53f0\u4e0aDApp\u5f00\u53d1\u7684\u6838\u5fc3\u7ec4\u4ef6\u4e4b\u4e00\u3002Web3.js\u63d0\u4f9b\u4e86\u4e00\u7ec4API\uff0c\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528JavaScript\u4e0e\u4ee5\u592a\u574a\u7f51\u7edc\u8fdb\u884c\u4ea4\u4e92\uff0c\u5305\u62ec\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u3001\u64cd\u4f5c\u4ee5\u592a\u574a\u8d26\u6237\u3001\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7b49\u7b49\u3002<\/p>\n\n\n\n
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Web3.js\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u4e0e\u4ee5\u592a\u574a\u7f51\u7edc\u8fdb\u884c\u4ea4\u4e92\uff0c\u4ece\u800c\u5728DApp\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u5b9e\u73b0\u4ee5\u4e0b\u529f\u80fd\uff1a<\/p>\n\n\n\n
- \n
- \u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff1a\u4f7f\u7528Web3.js\u53ef\u4ee5\u8f7b\u677e\u5730\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u4e0e\u4ee5\u592a\u574a\u8282\u70b9\u8fdb\u884c\u901a\u4fe1\u3002<\/li>\n\n\n\n
- \u64cd\u4f5c\u4ee5\u592a\u574a\u8d26\u6237\uff1aWeb3.js\u63d0\u4f9b\u4e86\u4e00\u7ec4API\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u521b\u5efa\u3001\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u5305\u62ec\u68c0\u7d22\u8d26\u6237\u4f59\u989d\u548c\u4ea4\u6613\u5386\u53f2\u8bb0\u5f55\uff0c\u53d1\u9001\u4ee5\u592a\u5e01\u6216\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u3002<\/li>\n\n\n\n
- \u4e0e\u667a\u80fd\u5408\u7ea6\u4ea4\u4e92\uff1aWeb3.js\u63d0\u4f9b\u4e86\u4e00\u7ec4API\uff0c\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4e0e\u4ee5\u592a\u574a\u667a\u80fd\u5408\u7ea6\u8fdb\u884c\u4ea4\u4e92\uff0c\u5305\u62ec\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u3001\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7684\u65b9\u6cd5\uff0c\u6216\u8005\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e2d\u7684\u4e8b\u4ef6\u3002<\/li>\n<\/ol>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0cWeb3.js\u662f\u4ee5\u592a\u574a\u5e73\u53f0\u4e0a\u7684\u4e00\u4e2a\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u4f7f\u7528JavaScript\u6784\u5efa\u53bb\u4e2d\u5fc3\u5316\u5e94\u7528\u7a0b\u5e8f\uff0c\u4e3a\u4ee5\u592a\u574a\u751f\u6001\u7cfb\u7edf\u7684\u53d1\u5c55\u548c\u63a8\u5e7f\u505a\u51fa\u4e86\u91cd\u8981\u8d21\u732e\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u5b89\u88c5\u548c\u5bfc\u5165web3.js<\/p>\n\n\n\n
\u8981\u4f7f\u7528Web3.js\uff0c\u60a8\u9700\u8981\u5148\u5b89\u88c5\u548c\u5bfc\u5165\u5b83\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u5b89\u88c5\u548c\u5bfc\u5165\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- \u4f7f\u7528CDN\u5f15\u5165<\/li>\n<\/ol>\n\n\n\n
\u60a8\u53ef\u4ee5\u4f7f\u7528CDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u4ece\u7f51\u7edc\u4e0a\u5f15\u5165Web3.js\u5e93\uff0c\u4e0d\u9700\u8981\u4e0b\u8f7d\u548c\u5b89\u88c5\u3002\u53ea\u9700\u8981\u5728HTML\u6587\u6863\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u5373\u53ef\uff1a<\/p>\n\n\n\n
htmlCopy code
<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/web3@1.5.0\/dist\/web3.min.js\"><\/script>\n<\/code><\/pre>\n\n\n\n\u8bf7\u6ce8\u610f\uff0c\u60a8\u9700\u8981\u66f4\u6539\u7248\u672c\u53f7\uff0c\u4ee5\u5339\u914d\u60a8\u6b63\u5728\u4f7f\u7528\u7684Web3.js\u7248\u672c\u3002<\/p>\n\n\n\n
- \n
- \u4f7f\u7528npm\u5b89\u88c5<\/li>\n<\/ol>\n\n\n\n
\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fNode.js\u6216\u7c7b\u4f3c\u7684JavaScript\u8fd0\u884c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528npm\uff08Node.js\u8f6f\u4ef6\u5305\u7ba1\u7406\u5668\uff09\u5b89\u88c5Web3.js\u3002\u5728\u7ec8\u7aef\u6216\u547d\u4ee4\u884c\u7a97\u53e3\u4e2d\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n
bashCopy code
npm install web3\n<\/code><\/pre>\n\n\n\n- \n
- \u5bfc\u5165Web3.js<\/li>\n<\/ol>\n\n\n\n
\u5b89\u88c5Web3.js\u540e\uff0c\u60a8\u9700\u8981\u5c06\u5b83\u5bfc\u5165\u5230\u60a8\u7684\u9879\u76ee\u4e2d\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u6d4f\u89c8\u5668\u73af\u5883\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06Web3.js\u5bfc\u5165\u5230\u60a8\u7684JavaScript\u6587\u4ef6\u4e2d\uff1a<\/p>\n\n\n\n
javascriptCopy code
import Web3 from 'web3';\n<\/code><\/pre>\n\n\n\n\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fNode.js\u73af\u5883\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06Web3.js\u5bfc\u5165\u5230\u60a8\u7684JavaScript\u6587\u4ef6\u4e2d\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\n<\/code><\/pre>\n\n\n\n\u6ce8\u610f\uff1a\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662fWeb3.js v1.x\u7248\u672c\uff0c\u60a8\u9700\u8981\u5c06\u4e0a\u9762\u7684\u4ee3\u7801\u6539\u4e3a\u4ee5\u4e0b\u5f62\u5f0f\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\n<\/code><\/pre>\n\n\n\n\u4ee5\u4e0a\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2aweb3\u5b9e\u4f8b\uff0c\u5b83\u4f7f\u7528Infura API\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u4e3b\u7f51\u3002\u60a8\u9700\u8981\u5c06your_project_id\u66ff\u6362\u4e3a\u60a8\u5728Infura\u7f51\u7ad9\u4e0a\u521b\u5efa\u7684\u9879\u76eeID\u3002\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u4ee5\u592a\u574a\u8282\u70b9\u7684URL\uff0c\u4f8b\u5982\u672c\u5730\u8282\u70b9\u6216\u5176\u4ed6\u516c\u5171\u8282\u70b9\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u5b89\u88c5\u548c\u5bfc\u5165Web3.js\u975e\u5e38\u7b80\u5355\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u5b89\u88c5\u548c\u5bfc\u5165\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
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\u8981\u4f7f\u7528Web3.js\u4e0e\u4ee5\u592a\u574a\u7f51\u7edc\u8fdb\u884c\u4ea4\u4e92\uff0c\u60a8\u9700\u8981\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u4e0b\u9762\u662f\u51e0\u79cd\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- \u4f7f\u7528Infura API\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc<\/li>\n<\/ol>\n\n\n\n
Infura\u662f\u4e00\u4e2a\u63d0\u4f9b\u4ee5\u592a\u574a\u8282\u70b9\u670d\u52a1\u7684\u5e73\u53f0\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b83\u63d0\u4f9b\u7684API\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u53ea\u9700\u6ce8\u518c\u4e00\u4e2a\u514d\u8d39\u8d26\u6237\u5e76\u521b\u5efa\u4e00\u4e2a\u9879\u76ee\uff0c\u5373\u53ef\u83b7\u5f97\u8bbf\u95eeInfura\u8282\u70b9\u7684API\u5bc6\u94a5\u3002\u7136\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\n<\/code><\/pre>\n\n\n\n\u8bf7\u5c06your_project_id\u66ff\u6362\u4e3a\u60a8\u5728Infura\u7f51\u7ad9\u4e0a\u521b\u5efa\u7684\u9879\u76eeID\u3002<\/p>\n\n\n\n
- \n
- \u8fde\u63a5\u5230\u672c\u5730\u4ee5\u592a\u574a\u8282\u70b9<\/li>\n<\/ol>\n\n\n\n
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javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('http:\/\/localhost:8545');\n<\/code><\/pre>\n\n\n\n\u8bf7\u6ce8\u610f\uff0c\u4e0a\u9762\u7684\u4ee3\u7801\u5047\u5b9a\u60a8\u5728\u672c\u5730\u8ba1\u7b97\u673a\u4e0a\u5b89\u88c5\u4e86\u4ee5\u592a\u574a\u8282\u70b9\uff0c\u5e76\u4e14\u5b83\u6b63\u5728\u76d1\u542c8545\u7aef\u53e3\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u5176\u4ed6\u7aef\u53e3\u6216\u5176\u4ed6\u8282\u70b9\u914d\u7f6e\uff0c\u8bf7\u76f8\u5e94\u66f4\u6539\u7aef\u53e3\u548cURL\u3002<\/p>\n\n\n\n
- \n
- \u8fde\u63a5\u5230\u5176\u4ed6\u4ee5\u592a\u574a\u8282\u70b9<\/li>\n<\/ol>\n\n\n\n
\u9664\u4e86Infura\u548c\u672c\u5730\u8282\u70b9\u5916\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u516c\u5171\u4ee5\u592a\u574a\u8282\u70b9\u53ef\u4f9b\u9009\u62e9\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u8fde\u63a5\u5230\u5176\u4ed6\u516c\u5171\u8282\u70b9\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/some-other-node-url.com');\n<\/code><\/pre>\n\n\n\n\u8bf7\u5c06\u4e0a\u9762\u7684URL\u66ff\u6362\u4e3a\u60a8\u8981\u8fde\u63a5\u7684\u8282\u70b9\u7684URL\u3002<\/p>\n\n\n\n
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\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u521b\u5efaweb3.js\u5b9e\u4f8b<\/p>\n\n\n\n
\u521b\u5efaWeb3.js\u5b9e\u4f8b\u662f\u4f7f\u7528Web3.js\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u7684\u7b2c\u4e00\u6b65\u3002\u4e0b\u9762\u662f\u51e0\u79cd\u521b\u5efaWeb3.js\u5b9e\u4f8b\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- \u4f7f\u7528Infura API\u521b\u5efaWeb3.js\u5b9e\u4f8b<\/li>\n<\/ol>\n\n\n\n
\u5982\u679c\u60a8\u4f7f\u7528Infura API\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efaWeb3.js\u5b9e\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\n<\/code><\/pre>\n\n\n\n\u8bf7\u5c06your_project_id\u66ff\u6362\u4e3a\u60a8\u5728Infura\u7f51\u7ad9\u4e0a\u521b\u5efa\u7684\u9879\u76eeID\u3002<\/p>\n\n\n\n
- \n
- \u4f7f\u7528\u672c\u5730\u8282\u70b9\u521b\u5efaWeb3.js\u5b9e\u4f8b<\/li>\n<\/ol>\n\n\n\n
\u5982\u679c\u60a8\u4f7f\u7528\u672c\u5730\u8282\u70b9\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efaWeb3.js\u5b9e\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('http:\/\/localhost:8545');\n<\/code><\/pre>\n\n\n\n\u8bf7\u6ce8\u610f\uff0c\u4e0a\u9762\u7684\u4ee3\u7801\u5047\u5b9a\u60a8\u5728\u672c\u5730\u8ba1\u7b97\u673a\u4e0a\u5b89\u88c5\u4e86\u4ee5\u592a\u574a\u8282\u70b9\uff0c\u5e76\u4e14\u5b83\u6b63\u5728\u76d1\u542c8545\u7aef\u53e3\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u5176\u4ed6\u7aef\u53e3\u6216\u5176\u4ed6\u8282\u70b9\u914d\u7f6e\uff0c\u8bf7\u76f8\u5e94\u66f4\u6539\u7aef\u53e3\u548cURL\u3002<\/p>\n\n\n\n
- \n
- \u4f7f\u7528Provider\u521b\u5efaWeb3.js\u5b9e\u4f8b<\/li>\n<\/ol>\n\n\n\n
Web3.js\u8fd8\u63d0\u4f9b\u4e86\u53e6\u4e00\u79cd\u521b\u5efa\u5b9e\u4f8b\u7684\u65b9\u6cd5\uff0c\u5373\u4f7f\u7528Provider\u3002Provider\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5b83\u6307\u5b9a\u4e86\u4e0e\u4ee5\u592a\u574a\u7f51\u7edc\u4ea4\u4e92\u7684\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Provider\u521b\u5efaWeb3.js\u5b9e\u4f8b\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst provider = new Web3.providers.HttpProvider('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst web3 = new Web3(provider);\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aHttpProvider\uff0c\u5b83\u6307\u5b9a\u4e86\u6211\u4eec\u5c06\u4f7f\u7528HTTP\u534f\u8bae\u4e0e\u4ee5\u592a\u574a\u7f51\u7edc\u8fdb\u884c\u4ea4\u4e92\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528\u8fd9\u4e2aProvider\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u521b\u5efaWeb3.js\u5b9e\u4f8b\u662f\u4f7f\u7528Web3.js\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u60a8\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u521b\u5efaWeb3.js\u5b9e\u4f8b\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ee5\u592a\u574a\u5730\u5740\u548c\u79c1\u94a5<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u5730\u5740\u548c\u79c1\u94a5\u662f\u7528\u4e8e\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\u7684\u4e24\u4e2a\u91cd\u8981\u6982\u5ff5\u3002<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u5730\u5740\u662f\u4e00\u4e2a\u753140\u4e2a\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\uff0c\u5b83\u7c7b\u4f3c\u4e8e\u4e00\u4e2a\u94f6\u884c\u8d26\u6237\u7684\u8d26\u6237\u53f7\u7801\u3002\u4ee5\u592a\u574a\u5730\u5740\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u53ef\u4ee5\u7528\u4e8e\u63a5\u6536\u4ee5\u592a\u5e01\u548c\u5176\u4ed6\u4ee3\u5e01\uff0c\u4ee5\u53ca\u63a5\u6536\u548c\u53d1\u9001\u4ea4\u6613\u3002\u4ee5\u592a\u574a\u5730\u5740\u7531\u516c\u94a5\u7ecf\u8fc7\u54c8\u5e0c\u8ba1\u7b97\u5f97\u51fa\uff0c\u5e76\u6dfb\u52a0\u4e86\u4e00\u4e2a\u524d\u7f000x\uff0c\u4ee5\u8868\u793a\u5b83\u662f\u4e00\u4e2a\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u79c1\u94a5\u662f\u4e00\u4e2a64\u4e2a\u5b57\u7b26\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\uff0c\u5b83\u7c7b\u4f3c\u4e8e\u4e00\u4e2a\u94f6\u884c\u8d26\u6237\u7684\u5bc6\u7801\u3002\u79c1\u94a5\u7528\u4e8e\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u53ef\u4ee5\u7528\u4e8e\u7b7e\u7f72\u4ea4\u6613\u548c\u53d1\u9001\u4ee5\u592a\u5e01\u3002\u6bcf\u4e2a\u4ee5\u592a\u574a\u5730\u5740\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684\u79c1\u94a5\uff0c\u5b83\u4eec\u662f\u4e00\u4e00\u5bf9\u5e94\u7684\u3002<\/p>\n\n\n\n
\u79c1\u94a5\u901a\u5e38\u9700\u8981\u4e25\u683c\u4fdd\u5bc6\uff0c\u56e0\u4e3a\u62e5\u6709\u79c1\u94a5\u7684\u4eba\u53ef\u4ee5\u5b8c\u5168\u63a7\u5236\u8be5\u8d26\u6237\u7684\u8d44\u4ea7\uff0c\u5982\u679c\u79c1\u94a5\u6cc4\u9732\u6216\u4e22\u5931\uff0c\u8d44\u4ea7\u5c06\u65e0\u6cd5\u6062\u590d\u3002\u56e0\u6b64\uff0c\u5efa\u8bae\u4f7f\u7528\u5b89\u5168\u7684\u65b9\u5f0f\u5b58\u50a8\u79c1\u94a5\uff0c\u4f8b\u5982\u5c06\u5176\u5b58\u50a8\u5728\u786c\u4ef6\u94b1\u5305\u6216\u5b89\u5168\u7684\u79bb\u7ebf\u5b58\u50a8\u8bbe\u5907\u4e2d\u3002<\/p>\n\n\n\n
\u5728\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\uff0c\u4f7f\u7528\u79c1\u94a5\u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\uff0c\u4ee5\u8bc1\u660e\u8fd9\u7b14\u4ea4\u6613\u662f\u7531\u8be5\u8d26\u6237\u6240\u6709\u8005\u6388\u6743\u7684\u3002\u79c1\u94a5\u548c\u5730\u5740\u7684\u5173\u7cfb\u662f\u901a\u8fc7\u5bc6\u7801\u5b66\u65b9\u5f0f\u5b9e\u73b0\u7684\uff0c\u56e0\u6b64\u53ea\u6709\u62e5\u6709\u79c1\u94a5\u7684\u4eba\u624d\u80fd\u591f\u53d1\u9001\u6709\u6548\u7684\u4ea4\u6613\u548c\u7ba1\u7406\u8d26\u6237\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u4ee5\u592a\u574a\u5730\u5740\u548c\u79c1\u94a5\u662f\u7528\u4e8e\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\u7684\u4e24\u4e2a\u91cd\u8981\u6982\u5ff5\u3002\u4ee5\u592a\u574a\u5730\u5740\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u5e76\u53ef\u4ee5\u63a5\u6536\u548c\u53d1\u9001\u4ea4\u6613\uff0c\u800c\u79c1\u94a5\u7528\u4e8e\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u5e76\u7528\u4e8e\u7b7e\u7f72\u4ea4\u6613\u548c\u53d1\u9001\u4ee5\u592a\u5e01\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u521b\u5efa\u4ee5\u592a\u574a\u8d26\u6237<\/p>\n\n\n\n
\u5728\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u8d26\u6237\u9700\u8981\u751f\u6210\u4e00\u4e2a\u516c\u79c1\u94a5\u5bf9\uff0c\u5e76\u5c06\u516c\u94a5\u54c8\u5e0c\u8ba1\u7b97\u5f97\u51fa\u5730\u5740\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u521b\u5efa\u4ee5\u592a\u574a\u8d26\u6237\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- \u4f7f\u7528\u4ee5\u592a\u574a\u94b1\u5305\u521b\u5efa\u8d26\u6237<\/li>\n<\/ol>\n\n\n\n
\u4ee5\u592a\u574a\u94b1\u5305\u662f\u4e00\u79cd\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\u3002\u4ee5\u592a\u574a\u94b1\u5305\u53ef\u4ee5\u5206\u4e3a\u8f6f\u4ef6\u94b1\u5305\u548c\u786c\u4ef6\u94b1\u5305\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n\n\n\n
\u8f6f\u4ef6\u94b1\u5305\u662f\u4e00\u79cd\u8fd0\u884c\u5728\u8ba1\u7b97\u673a\u6216\u79fb\u52a8\u8bbe\u5907\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\u3002\u4ee5\u592a\u574a\u94b1\u5305\u901a\u5e38\u63d0\u4f9b\u521b\u5efa\u8d26\u6237\u7684\u9009\u9879\uff0c\u53ea\u9700\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u9009\u62e9\u521b\u5efa\u65b0\u8d26\u6237\uff0c\u5e76\u8f93\u5165\u5fc5\u8981\u7684\u4fe1\u606f\uff0c\u5982\u8d26\u6237\u540d\u79f0\u548c\u5bc6\u7801\u5373\u53ef\u3002<\/p>\n\n\n\n
\u786c\u4ef6\u94b1\u5305\u662f\u4e00\u79cd\u5b89\u5168\u5b58\u50a8\u79c1\u94a5\u7684\u8bbe\u5907\uff0c\u53ef\u4ee5\u79bb\u7ebf\u751f\u6210\u548c\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\u3002\u8981\u521b\u5efa\u4e00\u4e2a\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u60a8\u9700\u8981\u4f7f\u7528\u786c\u4ef6\u94b1\u5305\u8fde\u63a5\u5230\u8ba1\u7b97\u673a\u6216\u79fb\u52a8\u8bbe\u5907\uff0c\u5e76\u6309\u7167\u8bbe\u5907\u4e0a\u7684\u6307\u793a\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n\n\n\n
- \n
- \u4f7f\u7528Web3.js\u521b\u5efa\u8d26\u6237<\/li>\n<\/ol>\n\n\n\n
Web3.js\u5e93\u63d0\u4f9b\u4e86\u4e00\u7ec4API\uff0c\u53ef\u4ee5\u7528\u4e8e\u5728JavaScript\u4ee3\u7801\u4e2d\u521b\u5efa\u4ee5\u592a\u574a\u8d26\u6237\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Web3.js\u521b\u5efa\u8d26\u6237\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('http:\/\/localhost:8545');\nconst account = web3.eth.accounts.create();\nconsole.log(account.address); \/\/ \u8f93\u51fa\u8d26\u6237\u5730\u5740\nconsole.log(account.privateKey); \/\/ \u8f93\u51fa\u8d26\u6237\u79c1\u94a5\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u7136\u540e\u4f7f\u7528Web3.js\u63d0\u4f9b\u7684eth.accounts.create()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u4ee5\u592a\u574a\u8d26\u6237\u3002\u6700\u540e\uff0c\u6211\u4eec\u8f93\u51fa\u4e86\u8be5\u8d26\u6237\u7684\u5730\u5740\u548c\u79c1\u94a5\u3002<\/p>\n\n\n\n
- \n
- \u4f7f\u7528\u547d\u4ee4\u884c\u754c\u9762\u521b\u5efa\u8d26\u6237<\/li>\n<\/ol>\n\n\n\n
\u5728\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u884c\u754c\u9762\u521b\u5efa\u8d26\u6237\u3002\u4ee5\u4e0b\u662f\u5728\u4ee5\u592a\u574a\u547d\u4ee4\u884c\u754c\u9762\uff08geth\uff09\u4e2d\u521b\u5efa\u8d26\u6237\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
bashCopy code
geth account new\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u547d\u4ee4\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528geth\u547d\u4ee4\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u4ee5\u592a\u574a\u8d26\u6237\u3002geth\u5c06\u63d0\u793a\u60a8\u8f93\u5165\u4e00\u4e2a\u5bc6\u7801\u6765\u4fdd\u62a4\u79c1\u94a5\u3002\u7136\u540e\uff0cgeth\u5c06\u8f93\u51fa\u65b0\u8d26\u6237\u7684\u5730\u5740\uff0c\u5e76\u5c06\u79c1\u94a5\u4fdd\u5b58\u5728\u8ba1\u7b97\u673a\u7684\u9ed8\u8ba4\u4ee5\u592a\u574a\u94b1\u5305\u6587\u4ef6\u5939\u4e2d\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u521b\u5efa\u4ee5\u592a\u574a\u8d26\u6237\u662f\u4f7f\u7528\u4ee5\u592a\u574a\u8fdb\u884c\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u521b\u5efa\u8d26\u6237\u7684\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u5982\u4f55\u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u4f59\u989d<\/p>\n\n\n\n
\u8981\u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u7684\u4f59\u989d\uff0c\u53ef\u4ee5\u4f7f\u7528Web3.js\u5e93\u63d0\u4f9b\u7684API\u3002\u4e0b\u9762\u662f\u51e0\u79cd\u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u4f59\u989d\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- \u4f7f\u7528Web3.js API\u83b7\u53d6\u4f59\u989d<\/li>\n<\/ol>\n\n\n\n
\u4f7f\u7528Web3.js API\u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u4f59\u989d\u662f\u4e00\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Web3.js API\u83b7\u53d6\u4f59\u989d\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst address = '0x123456...'; \/\/ \u8981\u67e5\u8be2\u4f59\u989d\u7684\u4ee5\u592a\u574a\u5730\u5740\nweb3.eth.getBalance(address, (err, wei) => {\n const balance = web3.utils.fromWei(wei, 'ether');\n console.log(`\u8d26\u6237\u4f59\u989d\u4e3a\uff1a${balance} ETH`);\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u5e76\u6307\u5b9a\u4e86\u8981\u67e5\u8be2\u4f59\u989d\u7684\u4ee5\u592a\u574a\u5730\u5740\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528Web3.js\u63d0\u4f9b\u7684eth.getBalance()\u65b9\u6cd5\u83b7\u53d6\u8be5\u5730\u5740\u7684\u4f59\u989d\u3002\u8be5\u65b9\u6cd5\u8fd4\u56de\u7684\u4f59\u989d\u5355\u4f4d\u4e3awei\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528web3.utils.fromWei()\u65b9\u6cd5\u5c06\u5176\u8f6c\u6362\u4e3a\u4ee5\u592a\u5e01\u5355\u4f4d\uff08ETH\uff09\u3002<\/p>\n\n\n\n
- \n
- \u4f7f\u7528\u4ee5\u592a\u574a\u533a\u5757\u6d4f\u89c8\u5668\u83b7\u53d6\u4f59\u989d<\/li>\n<\/ol>\n\n\n\n
\u9664\u4e86\u4f7f\u7528Web3.js API\u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u4f59\u989d\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u592a\u574a\u533a\u5757\u6d4f\u89c8\u5668\u83b7\u53d6\u4f59\u989d\u3002\u4ee5\u592a\u574a\u533a\u5757\u6d4f\u89c8\u5668\u662f\u4e00\u79cd\u53ef\u4ee5\u67e5\u770b\u4ee5\u592a\u574a\u7f51\u7edc\u4e0a\u533a\u5757\u548c\u4ea4\u6613\u7684Web\u5e94\u7528\u7a0b\u5e8f\u3002\u4ee5\u4e0b\u662f\u5728\u4ee5\u592a\u574a\u533a\u5757\u6d4f\u89c8\u5668\uff08\u5982Etherscan\uff09\u4e2d\u83b7\u53d6\u4f59\u989d\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
- \n
- \u6253\u5f00Etherscan\u7f51\u7ad9\u5e76\u5728\u641c\u7d22\u6846\u4e2d\u8f93\u5165\u8981\u67e5\u8be2\u4f59\u989d\u7684\u4ee5\u592a\u574a\u5730\u5740\u3002<\/li>\n\n\n\n
- \u627e\u5230\u8be5\u5730\u5740\u7684\u9875\u9762\uff0c\u5e76\u5728\u9875\u9762\u4e0a\u67e5\u627e\u4f59\u989d\u4fe1\u606f\u3002<\/li>\n<\/ol>\n\n\n\n
\u5728\u4ee5\u592a\u574a\u533a\u5757\u6d4f\u89c8\u5668\u4e2d\uff0c\u60a8\u53ef\u4ee5\u67e5\u770b\u4ee5\u592a\u574a\u8d26\u6237\u7684\u4ea4\u6613\u5386\u53f2\u8bb0\u5f55\u3001\u4ee3\u5e01\u4f59\u989d\u7b49\u5176\u4ed6\u6709\u7528\u4fe1\u606f\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u83b7\u53d6\u4ee5\u592a\u574a\u8d26\u6237\u4f59\u989d\u662f\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u83b7\u53d6\u4f59\u989d\u7684\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ee5\u592a\u574a\u4ea4\u6613\u7684\u7ed3\u6784<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u4ea4\u6613\u662f\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\u7684\u57fa\u672c\u64cd\u4f5c\uff0c\u5b83\u662f\u901a\u8fc7\u53d1\u9001\u4ee5\u592a\u5e01\u6216\u5176\u4ed6\u4ee3\u5e01\uff0c\u4ee5\u53ca\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u6765\u5b9e\u73b0\u7684\u3002\u4ee5\u4e0b\u662f\u4ee5\u592a\u574a\u4ea4\u6613\u7684\u7ed3\u6784\uff1a<\/p>\n\n\n\n
- \n
- \u4ea4\u6613\u54c8\u5e0c\uff08Transaction Hash\uff09<\/li>\n<\/ol>\n\n\n\n
\u4ea4\u6613\u54c8\u5e0c\u662f\u4e00\u4e2a\u552f\u4e00\u7684\u300132\u5b57\u8282\u7684\u6807\u8bc6\u7b26\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u4e00\u7b14\u4ee5\u592a\u574a\u4ea4\u6613\u3002\u4ea4\u6613\u54c8\u5e0c\u662f\u7531\u4ea4\u6613\u6570\u636e\u548c\u5176\u4ed6\u5143\u6570\u636e\u8ba1\u7b97\u800c\u6765\u7684\uff0c\u662f\u4ea4\u6613\u7684\u552f\u4e00\u6807\u8bc6\u7b26\u3002<\/p>\n\n\n\n
- \n
- \u53d1\u9001\u8005\u5730\u5740\uff08Sender Address\uff09<\/li>\n<\/ol>\n\n\n\n
\u53d1\u9001\u8005\u5730\u5740\u662f\u6307\u53d1\u9001\u4ea4\u6613\u7684\u4ee5\u592a\u574a\u8d26\u6237\u7684\u5730\u5740\u3002\u53d1\u9001\u8005\u9700\u8981\u62e5\u6709\u8be5\u5730\u5740\u7684\u79c1\u94a5\u624d\u80fd\u53d1\u9001\u6709\u6548\u7684\u4ea4\u6613\u3002<\/p>\n\n\n\n
- \n
- \u63a5\u6536\u8005\u5730\u5740\uff08Recipient Address\uff09<\/li>\n<\/ol>\n\n\n\n
\u63a5\u6536\u8005\u5730\u5740\u662f\u6307\u63a5\u6536\u4ea4\u6613\u7684\u4ee5\u592a\u574a\u8d26\u6237\u7684\u5730\u5740\u3002\u8be5\u5730\u5740\u53ef\u4ee5\u662f\u53e6\u4e00\u4e2a\u4ee5\u592a\u574a\u8d26\u6237\uff0c\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u667a\u80fd\u5408\u7ea6\u5730\u5740\u3002<\/p>\n\n\n\n
- \n
- \u4ea4\u6613\u91d1\u989d\uff08Transaction Value\uff09<\/li>\n<\/ol>\n\n\n\n
\u4ea4\u6613\u91d1\u989d\u6307\u53d1\u9001\u7684\u4ee5\u592a\u5e01\u6216\u5176\u4ed6\u4ee3\u5e01\u7684\u6570\u91cf\u3002\u5b83\u4ee5wei\u4e3a\u5355\u4f4d\u8868\u793a\uff0c1\u4ee5\u592a\u5e01\u7b49\u4e8e10^18wei\u3002\u5bf9\u4e8e\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7684\u4ea4\u6613\uff0c\u4ea4\u6613\u91d1\u989d\u901a\u5e38\u4e3a0\u3002<\/p>\n\n\n\n
- \n
- \u4ea4\u6613\u8d39\u7528\uff08Transaction Fee\uff09<\/li>\n<\/ol>\n\n\n\n
\u4ea4\u6613\u8d39\u7528\u662f\u6307\u53d1\u9001\u4ea4\u6613\u7684\u4eba\u9700\u8981\u652f\u4ed8\u7ed9\u77ff\u5de5\u7684\u624b\u7eed\u8d39\u3002\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\uff0c\u4ea4\u6613\u8d39\u7528\u662f\u4ee5gas\u4e3a\u5355\u4f4d\u8ba1\u7b97\u7684\uff0c\u6bcf\u4e2a\u64cd\u4f5c\u90fd\u6709\u4e00\u4e2a\u56fa\u5b9a\u7684gas\u6d88\u8017\u91cf\u3002\u77ff\u5de5\u6536\u5230\u7684\u624b\u7eed\u8d39\u7b49\u4e8e\u6d88\u8017\u7684gas\u6570\u91cf\u4e58\u4ee5\u5f53\u524dgas\u4ef7\u683c\u3002<\/p>\n\n\n\n
- \n
- gas\u9650\u5236\uff08Gas Limit\uff09<\/li>\n<\/ol>\n\n\n\n
gas\u9650\u5236\u662f\u6307\u53d1\u9001\u4ea4\u6613\u65f6\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927gas\u6570\u91cf\u3002\u5982\u679c\u4ea4\u6613\u6267\u884c\u8fc7\u7a0b\u4e2d\u6d88\u8017\u7684gas\u6570\u91cf\u8d85\u8fc7\u4e86\u8fd9\u4e2a\u9650\u5236\uff0c\u4ea4\u6613\u5c06\u88ab\u89c6\u4e3a\u65e0\u6548\uff0c\u6240\u6709\u7684\u64cd\u4f5c\u90fd\u5c06\u88ab\u64a4\u9500\u3002<\/p>\n\n\n\n
- \n
- gas\u4ef7\u683c\uff08Gas Price\uff09<\/li>\n<\/ol>\n\n\n\n
gas\u4ef7\u683c\u662f\u6307\u53d1\u9001\u4ea4\u6613\u65f6\u613f\u610f\u652f\u4ed8\u7684\u6bcf\u5355\u4f4dgas\u7684\u4ef7\u683c\u3002\u77ff\u5de5\u901a\u5e38\u4f1a\u4f18\u5148\u5904\u7406gas\u4ef7\u683c\u9ad8\u7684\u4ea4\u6613\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u4ea4\u6613\u53ef\u4ee5\u4e3a\u4ed6\u4eec\u5e26\u6765\u66f4\u9ad8\u7684\u624b\u7eed\u8d39\u6536\u76ca\u3002<\/p>\n\n\n\n
- \n
- \u6570\u636e\uff08Data\uff09<\/li>\n<\/ol>\n\n\n\n
\u6570\u636e\u662f\u4e00\u4e9b\u989d\u5916\u7684\u4ea4\u6613\u6570\u636e\uff0c\u7528\u4e8e\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u6216\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\u3002\u5bf9\u4e8e\u8f6c\u8d26\u4ea4\u6613\uff0c\u6570\u636e\u5b57\u6bb5\u901a\u5e38\u4e3a\u7a7a\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u4ee5\u592a\u574a\u4ea4\u6613\u662f\u7531\u4ea4\u6613\u54c8\u5e0c\u3001\u53d1\u9001\u8005\u5730\u5740\u3001\u63a5\u6536\u8005\u5730\u5740\u3001\u4ea4\u6613\u91d1\u989d\u3001\u4ea4\u6613\u8d39\u7528\u3001gas\u9650\u5236\u3001gas\u4ef7\u683c\u548c\u6570\u636e\u7b49\u5143\u6570\u636e\u7ec4\u6210\u7684\u3002\u4e86\u89e3\u8fd9\u4e9b\u5143\u6570\u636e\u53ef\u4ee5\u5e2e\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u4ee5\u592a\u574a\u4ea4\u6613\u7684\u7ed3\u6784\u548c\u4ea4\u6613\u8fc7\u7a0b\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u521b\u5efa\u5e76\u7b7e\u540d\u4ea4\u6613<\/p>\n\n\n\n
\u8981\u521b\u5efa\u5e76\u7b7e\u540d\u4ee5\u592a\u574a\u4ea4\u6613\uff0c\u53ef\u4ee5\u4f7f\u7528Web3.js\u5e93\u63d0\u4f9b\u7684API\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa\u5e76\u7b7e\u540d\u4ee5\u592a\u574a\u4ea4\u6613\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst privateKey = '0x123456...'; \/\/ \u53d1\u9001\u8005\u7684\u79c1\u94a5\nconst senderAddress = '0x123456...'; \/\/ \u53d1\u9001\u8005\u7684\u4ee5\u592a\u574a\u5730\u5740\nconst recipientAddress = '0x654321...'; \/\/ \u63a5\u6536\u8005\u7684\u4ee5\u592a\u574a\u5730\u5740\nconst amount = '1'; \/\/ \u4ee5\u592a\u5e01\u6570\u91cf\n\nweb3.eth.getTransactionCount(senderAddress, (err, txCount) => {\n \/\/ \u521b\u5efa\u4ea4\u6613\u5bf9\u8c61\n const txObject = {\n nonce: web3.utils.toHex(txCount),\n to: recipientAddress,\n value: web3.utils.toHex(web3.utils.toWei(amount, 'ether')),\n gasLimit: web3.utils.toHex(21000),\n gasPrice: web3.utils.toHex(web3.utils.toWei('10', 'gwei'))\n };\n\n \/\/ \u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\n const tx = new Tx(txObject);\n const privateKeyBuffer = Buffer.from(privateKey, 'hex');\n tx.sign(privateKeyBuffer);\n\n \/\/ \u5c06\u4ea4\u6613\u53d1\u9001\u5230\u4ee5\u592a\u574a\u7f51\u7edc\n const serializedTx = tx.serialize();\n const raw = '0x' + serializedTx.toString('hex');\n web3.eth.sendSignedTransaction(raw, (err, txHash) => {\n console.log('\u4ea4\u6613\u54c8\u5e0c\uff1a', txHash);\n });\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u5e76\u6307\u5b9a\u4e86\u8981\u4f7f\u7528\u7684\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u53d1\u9001\u8005\u5730\u5740\u3001\u63a5\u6536\u8005\u5730\u5740\u548c\u4ea4\u6613\u91d1\u989d\u7b49\u5fc5\u8981\u4fe1\u606f\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528Web3.js\u63d0\u4f9b\u7684eth.getTransactionCount()\u65b9\u6cd5\u83b7\u53d6\u53d1\u9001\u8005\u5730\u5740\u7684\u4ea4\u6613\u6570\u91cf\uff0c\u5e76\u521b\u5efa\u4e86\u4e00\u4e2a\u4ea4\u6613\u5bf9\u8c61\u3002<\/p>\n\n\n\n
\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u540d\u4e3a”tx”\u7684\u5e93\uff08\u9700\u8981\u5b89\u88c5\uff09\u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\u3002\u9996\u5148\u5c06\u4ea4\u6613\u5bf9\u8c61\u4f20\u9012\u7ed9Tx\u6784\u9020\u51fd\u6570\uff0c\u5e76\u5c06\u79c1\u94a5\u8f6c\u6362\u4e3aBuffer\u5bf9\u8c61\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528tx.sign()\u65b9\u6cd5\u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\u3002<\/p>\n\n\n\n
\u6700\u540e\uff0c\u6211\u4eec\u5c06\u7b7e\u540d\u540e\u7684\u4ea4\u6613\u53d1\u9001\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u901a\u8fc7web3.eth.sendSignedTransaction()\u65b9\u6cd5\u53d1\u9001\u5df2\u7b7e\u540d\u7684\u4ea4\u6613\uff0c\u5e76\u5728\u56de\u8c03\u51fd\u6570\u4e2d\u83b7\u53d6\u4ea4\u6613\u54c8\u5e0c\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u521b\u5efa\u5e76\u7b7e\u540d\u4ee5\u592a\u574a\u4ea4\u6613\u662f\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u521b\u5efa\u548c\u7b7e\u540d\u4ea4\u6613\u7684\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u53d1\u9001\u4ea4\u6613\u5230\u4ee5\u592a\u574a\u7f51\u7edc<\/p>\n\n\n\n
\u8981\u5c06\u4ea4\u6613\u53d1\u9001\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u53ef\u4ee5\u4f7f\u7528Web3.js\u5e93\u63d0\u4f9b\u7684API\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u53d1\u9001\u4ee5\u592a\u574a\u4ea4\u6613\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst privateKey = '0x123456...'; \/\/ \u53d1\u9001\u8005\u7684\u79c1\u94a5\nconst senderAddress = '0x123456...'; \/\/ \u53d1\u9001\u8005\u7684\u4ee5\u592a\u574a\u5730\u5740\nconst recipientAddress = '0x654321...'; \/\/ \u63a5\u6536\u8005\u7684\u4ee5\u592a\u574a\u5730\u5740\nconst amount = '1'; \/\/ \u4ee5\u592a\u5e01\u6570\u91cf\n\nweb3.eth.getTransactionCount(senderAddress, (err, txCount) => {\n \/\/ \u521b\u5efa\u4ea4\u6613\u5bf9\u8c61\n const txObject = {\n nonce: web3.utils.toHex(txCount),\n to: recipientAddress,\n value: web3.utils.toHex(web3.utils.toWei(amount, 'ether')),\n gasLimit: web3.utils.toHex(21000),\n gasPrice: web3.utils.toHex(web3.utils.toWei('10', 'gwei'))\n };\n\n \/\/ \u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\n const tx = new Tx(txObject);\n const privateKeyBuffer = Buffer.from(privateKey, 'hex');\n tx.sign(privateKeyBuffer);\n\n \/\/ \u5c06\u4ea4\u6613\u53d1\u9001\u5230\u4ee5\u592a\u574a\u7f51\u7edc\n const serializedTx = tx.serialize();\n const raw = '0x' + serializedTx.toString('hex');\n web3.eth.sendSignedTransaction(raw, (err, txHash) => {\n console.log('\u4ea4\u6613\u54c8\u5e0c\uff1a', txHash);\n });\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u5e76\u6307\u5b9a\u4e86\u8981\u4f7f\u7528\u7684\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u53d1\u9001\u8005\u5730\u5740\u3001\u63a5\u6536\u8005\u5730\u5740\u548c\u4ea4\u6613\u91d1\u989d\u7b49\u5fc5\u8981\u4fe1\u606f\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528Web3.js\u63d0\u4f9b\u7684eth.getTransactionCount()\u65b9\u6cd5\u83b7\u53d6\u53d1\u9001\u8005\u5730\u5740\u7684\u4ea4\u6613\u6570\u91cf\uff0c\u5e76\u521b\u5efa\u4e86\u4e00\u4e2a\u4ea4\u6613\u5bf9\u8c61\u3002<\/p>\n\n\n\n
\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u540d\u4e3a”tx”\u7684\u5e93\uff08\u9700\u8981\u5b89\u88c5\uff09\u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\u3002\u9996\u5148\u5c06\u4ea4\u6613\u5bf9\u8c61\u4f20\u9012\u7ed9Tx\u6784\u9020\u51fd\u6570\uff0c\u5e76\u5c06\u79c1\u94a5\u8f6c\u6362\u4e3aBuffer\u5bf9\u8c61\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528tx.sign()\u65b9\u6cd5\u5bf9\u4ea4\u6613\u8fdb\u884c\u7b7e\u540d\u3002<\/p>\n\n\n\n
\u6700\u540e\uff0c\u6211\u4eec\u5c06\u7b7e\u540d\u540e\u7684\u4ea4\u6613\u901a\u8fc7web3.eth.sendSignedTransaction()\u65b9\u6cd5\u53d1\u9001\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u5e76\u5728\u56de\u8c03\u51fd\u6570\u4e2d\u83b7\u53d6\u4ea4\u6613\u54c8\u5e0c\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u5c06\u4ea4\u6613\u53d1\u9001\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u662f\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u53d1\u9001\u4ea4\u6613\u7684\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u76d1\u542c\u4ea4\u6613\u72b6\u6001<\/p>\n\n\n\n
\u8981\u76d1\u542c\u4ee5\u592a\u574a\u4ea4\u6613\u72b6\u6001\uff0c\u53ef\u4ee5\u4f7f\u7528Web3.js\u5e93\u63d0\u4f9b\u7684API\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u76d1\u542c\u4ea4\u6613\u72b6\u6001\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst txHash = '0x123456...'; \/\/ \u8981\u76d1\u542c\u7684\u4ea4\u6613\u54c8\u5e0c\n\nconst confirmationCallback = (confirmationNumber, receipt) => {\n console.log(`\u786e\u8ba4\u6b21\u6570\uff1a${confirmationNumber}`);\n console.log(`\u4ea4\u6613\u6536\u636e\uff1a`, receipt);\n};\n\nweb3.eth.getTransactionReceipt(txHash, (err, receipt) => {\n if (receipt) {\n console.log('\u4ea4\u6613\u5df2\u786e\u8ba4');\n confirmationCallback(null, receipt);\n } else {\n console.log('\u7b49\u5f85\u4ea4\u6613\u786e\u8ba4');\n const confirmationListener = web3.eth.subscribe('newBlockHeaders', (err, header) => {\n web3.eth.getTransactionReceipt(txHash, (err, receipt) => {\n if (receipt && receipt.blockNumber) {\n confirmationListener.unsubscribe();\n console.log('\u4ea4\u6613\u5df2\u786e\u8ba4');\n confirmationCallback(null, receipt);\n }\n });\n });\n }\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u5e76\u6307\u5b9a\u4e86\u8981\u4f7f\u7528\u7684\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u8981\u76d1\u542c\u7684\u4ea4\u6613\u54c8\u5e0c\u3002<\/p>\n\n\n\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528Web3.js\u63d0\u4f9b\u7684eth.getTransactionReceipt()\u65b9\u6cd5\u83b7\u53d6\u4ea4\u6613\u6536\u636e\u3002\u5982\u679c\u6536\u636e\u5df2\u7ecf\u5b58\u5728\uff0c\u5219\u76f4\u63a5\u8c03\u7528\u56de\u8c03\u51fd\u6570\u786e\u8ba4\u4ea4\u6613\u3002\u5982\u679c\u6536\u636e\u4e0d\u5b58\u5728\uff0c\u5219\u8bf4\u660e\u4ea4\u6613\u4ecd\u5728\u7b49\u5f85\u786e\u8ba4\uff0c\u6211\u4eec\u4f7f\u7528web3.eth.subscribe()\u65b9\u6cd5\u76d1\u542c\u65b0\u7684\u533a\u5757\u5934\u4e8b\u4ef6\uff0c\u5f53\u4ea4\u6613\u88ab\u786e\u8ba4\u65f6\uff0c\u6211\u4eec\u5c06\u53d6\u6d88\u8ba2\u9605\u4e8b\u4ef6\uff0c\u5e76\u8c03\u7528\u56de\u8c03\u51fd\u6570\u3002<\/p>\n\n\n\n
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\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ec0\u4e48\u662f\u667a\u80fd\u5408\u7ea6\uff1f<\/p>\n\n\n\n
\u667a\u80fd\u5408\u7ea6\uff08Smart Contract\uff09\u662f\u4e00\u79cd\u57fa\u4e8e\u533a\u5757\u94fe\u6280\u672f\u7684\u81ea\u52a8\u5316\u5408\u7ea6\uff0c\u5b83\u53ef\u4ee5\u5728\u4e0d\u9700\u8981\u7b2c\u4e09\u65b9\u5e72\u9884\u7684\u60c5\u51b5\u4e0b\uff0c\u81ea\u52a8\u6267\u884c\u548c\u5b9e\u65bd\u5408\u7ea6\u6761\u6b3e\u3002<\/p>\n\n\n\n
\u667a\u80fd\u5408\u7ea6\u662f\u4e00\u6bb5\u88ab\u7f16\u5199\u6210\u8ba1\u7b97\u673a\u7a0b\u5e8f\u7684\u4ee3\u7801\uff0c\u5b83\u4eec\u5b58\u5728\u4e8e\u533a\u5757\u94fe\u4e0a\uff0c\u53ef\u4ee5\u88ab\u591a\u4e2a\u53c2\u4e0e\u8005\u5728\u5171\u4eab\u7684\u5206\u5e03\u5f0f\u7f51\u7edc\u4e2d\u6267\u884c\u3002\u667a\u80fd\u5408\u7ea6\u53ef\u4ee5\u5b9a\u4e49\u89c4\u5219\u548c\u6761\u4ef6\uff0c\u4e00\u65e6\u6ee1\u8db3\u8fd9\u4e9b\u6761\u4ef6\uff0c\u5408\u7ea6\u5c31\u4f1a\u88ab\u81ea\u52a8\u6267\u884c\u3002\u7531\u4e8e\u5b83\u4eec\u662f\u5728\u533a\u5757\u94fe\u4e0a\u6267\u884c\u7684\uff0c\u56e0\u6b64\u667a\u80fd\u5408\u7ea6\u5177\u6709\u4e0d\u53ef\u7be1\u6539\u3001\u900f\u660e\u548c\u5b89\u5168\u7b49\u7279\u70b9\uff0c\u53ef\u4ee5\u5728\u8bb8\u591a\u4e0d\u540c\u7684\u573a\u666f\u4e2d\u4f7f\u7528\uff0c\u4f8b\u5982\u6570\u5b57\u8d27\u5e01\u3001\u6570\u5b57\u8d44\u4ea7\u3001\u7535\u5b50\u6295\u7968\u548c\u4f9b\u5e94\u94fe\u7ba1\u7406\u7b49\u3002<\/p>\n\n\n\n
\u667a\u80fd\u5408\u7ea6\u7684\u6838\u5fc3\u601d\u60f3\u662f\u53bb\u4e2d\u5fc3\u5316\uff0c\u5b83\u4eec\u4e0d\u9700\u8981\u4f20\u7edf\u7684\u6cd5\u5f8b\u4f53\u7cfb\u6216\u4e2d\u4ecb\u673a\u6784\u6765\u6267\u884c\uff0c\u56e0\u6b64\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u6210\u672c\u548c\u63d0\u9ad8\u6548\u7387\u3002\u667a\u80fd\u5408\u7ea6\u53ef\u4ee5\u6839\u636e\u53c2\u4e0e\u8005\u4e4b\u95f4\u7684\u4ea4\u4e92\u548c\u4fe1\u4efb\uff0c\u81ea\u52a8\u6267\u884c\u548c\u7ba1\u7406\u5408\u7ea6\u3002\u7531\u4e8e\u667a\u80fd\u5408\u7ea6\u662f\u516c\u5f00\u7684\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u67e5\u770b\u5b83\u4eec\u7684\u4ee3\u7801\u548c\u64cd\u4f5c\uff0c\u56e0\u6b64\u5b83\u4eec\u5177\u6709\u9ad8\u5ea6\u7684\u900f\u660e\u5ea6\u548c\u53ef\u4fe1\u5ea6\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u667a\u80fd\u5408\u7ea6\u662f\u4e00\u79cd\u9769\u547d\u6027\u7684\u6280\u672f\uff0c\u53ef\u4ee5\u901a\u8fc7\u6d88\u9664\u4e2d\u95f4\u4eba\u3001\u964d\u4f4e\u6210\u672c\u548c\u63d0\u9ad8\u6548\u7387\u6765\u6539\u53d8\u8bb8\u591a\u4f20\u7edf\u884c\u4e1a\u3002\u968f\u7740\u533a\u5757\u94fe\u6280\u672f\u7684\u53d1\u5c55\u548c\u5e94\u7528\u573a\u666f\u7684\u4e0d\u65ad\u589e\u52a0\uff0c\u667a\u80fd\u5408\u7ea6\u7684\u5e94\u7528\u524d\u666f\u5c06\u4f1a\u8d8a\u6765\u8d8a\u5e7f\u6cdb\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91caSolidity\u7f16\u7a0b\u8bed\u8a00<\/p>\n\n\n\n
Solidity\u662f\u4e00\u79cd\u57fa\u4e8e\u7c7b\u4f3c\u4e8eJavaScript\u548cC++\u7684\u9ad8\u7ea7\u7f16\u7a0b\u8bed\u8a00\uff0c\u4e13\u95e8\u7528\u4e8e\u7f16\u5199\u667a\u80fd\u5408\u7ea6\u3002\u5b83\u662f\u4ee5\u592a\u574a\u5e73\u53f0\u7684\u5b98\u65b9\u8bed\u8a00\uff0c\u4e5f\u662f\u6700\u5e38\u7528\u7684\u533a\u5757\u94fe\u667a\u80fd\u5408\u7ea6\u7f16\u7a0b\u8bed\u8a00\u4e4b\u4e00\u3002<\/p>\n\n\n\n
Solidity\u652f\u6301\u5e38\u89c1\u7684\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7279\u6027\uff0c\u4f8b\u5982\u7ee7\u627f\u3001\u62bd\u8c61\u7c7b\u3001\u591a\u6001\u548c\u4e8b\u4ef6\u7b49\u3002\u5b83\u8fd8\u652f\u6301\u5185\u8054\u6c47\u7f16\uff0c\u53ef\u4ee5\u4e0e\u5176\u4ed6\u8bed\u8a00\u8fdb\u884c\u4ea4\u4e92\u3002\u901a\u8fc7\u4f7f\u7528Solidity\u7f16\u5199\u667a\u80fd\u5408\u7ea6\uff0c\u53ef\u4ee5\u5728\u4ee5\u592a\u574a\u5e73\u53f0\u4e0a\u5b9e\u73b0\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f8b\u5982\u6570\u5b57\u8d27\u5e01\u3001\u6295\u7968\u7cfb\u7edf\u3001\u4f9b\u5e94\u94fe\u8ddf\u8e2a\u7b49\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Solidity\u7f16\u5199\u7684\u7b80\u5355\u667a\u80fd\u5408\u7ea6\u793a\u4f8b\uff1a<\/p>\n\n\n\n
solidityCopy code
pragma solidity ^0.8.0;\n\ncontract MyContract {\n string public message;\n\n constructor(string memory _message) {\n message = _message;\n }\n\n function setMessage(string memory _message) public {\n message = _message;\n }\n}\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aMyContract\u7684\u667a\u80fd\u5408\u7ea6\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2a\u516c\u5171\u53d8\u91cfmessage\u548c\u4e00\u4e2a\u53ef\u5199\u51fd\u6570setMessage\u3002\u5f53\u667a\u80fd\u5408\u7ea6\u88ab\u521b\u5efa\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u5b57\u7b26\u4e32\u4f5c\u4e3a\u521d\u59cb\u6d88\u606f\u3002<\/p>\n\n\n\n
\u5728Solidity\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528pragma\u6307\u4ee4\u6765\u6307\u5b9a\u7f16\u8bd1\u5668\u7248\u672c\u3002\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6307\u5b9a\u4e86Solidity 0.8.0\u4ee5\u4e0a\u7684\u7248\u672c\u3002\u6211\u4eec\u8fd8\u4f7f\u7528\u4e86\u4e00\u4e2a\u540d\u4e3amemory\u7684\u5173\u952e\u5b57\u6765\u58f0\u660e\u53d8\u91cf\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0cSolidity\u662f\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u5b83\u4e3a\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u3001\u5b89\u5168\u548c\u53ef\u9760\u7684\u65b9\u6cd5\u6765\u7f16\u5199\u667a\u80fd\u5408\u7ea6\u3002\u968f\u7740\u533a\u5757\u94fe\u6280\u672f\u7684\u53d1\u5c55\uff0cSolidity\u7684\u5e94\u7528\u524d\u666f\u4e5f\u5c06\u8d8a\u6765\u8d8a\u5e7f\u6cdb\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u5230\u4ee5\u592a\u574a\u7f51\u7edc<\/p>\n\n\n\n
\u8981\u5c06\u667a\u80fd\u5408\u7ea6\u90e8\u7f72\u5230\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n
- \n
- \u7f16\u5199\u667a\u80fd\u5408\u7ea6\u4ee3\u7801\uff1a\u4f7f\u7528Solidity\u7b49\u7f16\u7a0b\u8bed\u8a00\u7f16\u5199\u667a\u80fd\u5408\u7ea6\u4ee3\u7801\u3002\u53ef\u4ee5\u4f7f\u7528Solidity IDE\u3001Remix\u7b49\u5de5\u5177\u6765\u7f16\u5199\u548c\u6d4b\u8bd5\u667a\u80fd\u5408\u7ea6\u3002<\/li>\n\n\n\n
- \u7f16\u8bd1\u667a\u80fd\u5408\u7ea6\u4ee3\u7801\uff1a\u4f7f\u7528Solidity\u7f16\u8bd1\u5668\u7f16\u8bd1\u667a\u80fd\u5408\u7ea6\u4ee3\u7801\uff0c\u751f\u6210\u667a\u80fd\u5408\u7ea6\u7684\u5b57\u8282\u7801\u548cABI\uff08Application Binary Interface\uff09\u3002<\/li>\n\n\n\n
- \u90e8\u7f72\u667a\u80fd\u5408\u7ea6\uff1a\u4f7f\u7528Web3.js\u6216\u5176\u4ed6\u5de5\u5177\u5c06\u667a\u80fd\u5408\u7ea6\u90e8\u7f72\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u4e0a\u3002\u9700\u8981\u63d0\u4f9b\u6240\u9700\u7684gas\u8d39\u7528\u548c\u4ea4\u6613\u624b\u7eed\u8d39\u7528\u3002<\/li>\n<\/ol>\n\n\n\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528Web3.js\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst bytecode = '0x123456...'; \/\/ \u667a\u80fd\u5408\u7ea6\u7684\u5b57\u8282\u7801\nconst abi = [...]; \/\/ \u667a\u80fd\u5408\u7ea6\u7684ABI\n\nconst myContract = new web3.eth.Contract(abi);\n\nconst deployContract = async () => {\n const accounts = await web3.eth.getAccounts();\n const result = await myContract.deploy({\n data: bytecode\n }).send({\n from: accounts[0],\n gas: 1500000,\n gasPrice: '30000000000'\n });\n console.log('\u5408\u7ea6\u5730\u5740\uff1a', result.options.address);\n};\n\ndeployContract();\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u5e76\u6307\u5b9a\u4e86\u8981\u4f7f\u7528\u7684\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u667a\u80fd\u5408\u7ea6\u7684\u5b57\u8282\u7801\u548cABI\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528web3.eth.Contract()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amyContract\u7684\u5408\u7ea6\u5bf9\u8c61\u3002<\/p>\n\n\n\n
\u6700\u540e\uff0c\u6211\u4eec\u4f7f\u7528myContract.deploy()\u65b9\u6cd5\u548csend()\u65b9\u6cd5\u5c06\u667a\u80fd\u5408\u7ea6\u90e8\u7f72\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u4e0a\uff0c\u5e76\u5728\u56de\u8c03\u51fd\u6570\u4e2d\u6253\u5370\u5408\u7ea6\u5730\u5740\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u9700\u8981\u4ed8\u51fa\u4e00\u5b9a\u7684gas\u8d39\u7528\u548c\u4ea4\u6613\u624b\u7eed\u8d39\u7528\uff0c\u8fd9\u53d6\u51b3\u4e8e\u667a\u80fd\u5408\u7ea6\u7684\u590d\u6742\u6027\u548c\u5f53\u524d\u4ee5\u592a\u574a\u7f51\u7edc\u7684\u72b6\u51b5\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u662f\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u7684\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570<\/p>\n\n\n\n
\u8981\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528Web3.js\u5e93\u63d0\u4f9b\u7684API\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n
javascriptCopy code
const Web3 = require('web3');\nconst web3 = new Web3('https:\/\/mainnet.infura.io\/v3\/your_project_id');\nconst abi = [...]; \/\/ \u667a\u80fd\u5408\u7ea6\u7684ABI\nconst contractAddress = '0x123456...'; \/\/ \u667a\u80fd\u5408\u7ea6\u7684\u5730\u5740\n\nconst myContract = new web3.eth.Contract(abi, contractAddress);\n\nconst callFunction = async () => {\n const result = await myContract.methods.myFunction(param1, param2).call();\n console.log('\u51fd\u6570\u8c03\u7528\u7ed3\u679c\uff1a', result);\n};\n\ncallFunction();\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aWeb3.js\u5b9e\u4f8b\uff0c\u5e76\u6307\u5b9a\u4e86\u8981\u4f7f\u7528\u7684\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u7136\u540e\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u667a\u80fd\u5408\u7ea6\u7684ABI\u548c\u5730\u5740\uff0c\u5e76\u4f7f\u7528web3.eth.Contract()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3amyContract\u7684\u5408\u7ea6\u5bf9\u8c61\u3002<\/p>\n\n\n\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3acallFunction\u7684\u51fd\u6570\uff0c\u4f7f\u7528myContract.methods.myFunction()\u65b9\u6cd5\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7684\u51fd\u6570\uff0c\u5e76\u4f20\u9012\u6240\u9700\u7684\u53c2\u6570\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528call()\u65b9\u6cd5\u83b7\u53d6\u51fd\u6570\u8c03\u7528\u7684\u7ed3\u679c\uff0c\u5e76\u5728\u56de\u8c03\u51fd\u6570\u4e2d\u6253\u5370\u7ed3\u679c\u3002<\/p>\n\n\n\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u9700\u8981\u4f7f\u7528call()\u6216send()\u65b9\u6cd5\u3002\u5982\u679c\u53ea\u9700\u8981\u8bfb\u53d6\u5408\u7ea6\u72b6\u6001\u800c\u4e0d\u6539\u53d8\u72b6\u6001\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528call()\u65b9\u6cd5\u3002\u5982\u679c\u9700\u8981\u4fee\u6539\u5408\u7ea6\u72b6\u6001\uff0c\u5219\u9700\u8981\u4f7f\u7528send()\u65b9\u6cd5\uff0c\u5e76\u63d0\u4f9b\u6240\u9700\u7684gas\u8d39\u7528\u548c\u4ea4\u6613\u624b\u7eed\u8d39\u7528\u3002<\/p>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u662f\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u6839\u636e\u60a8\u7684\u9700\u8981\u548c\u9879\u76ee\u8981\u6c42\u9009\u62e9\u9002\u5408\u7684\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u7684\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91caweb3.js\u63d0\u4f9b\u7684API\u548c\u65b9\u6cd5<\/p>\n\n\n\n
Web3.js\u662f\u4e00\u4e2a\u7528\u4e8e\u4e0e\u4ee5\u592a\u574a\u533a\u5757\u94fe\u4ea4\u4e92\u7684JavaScript\u5e93\uff0c\u5b83\u63d0\u4f9b\u4e86\u8bb8\u591aAPI\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u67e5\u8be2\u4ee5\u592a\u574a\u533a\u5757\u94fe\u72b6\u6001\u3001\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u3001\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u51fd\u6570\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9bWeb3.js\u63d0\u4f9b\u7684\u5e38\u7528API\u548c\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- web3.eth\uff1a\u4ee5\u592a\u574a\u533a\u5757\u94fe\u7684\u6838\u5fc3API\uff0c\u7528\u4e8e\u67e5\u8be2\u4ee5\u592a\u574a\u8d26\u6237\u3001\u4ea4\u6613\u3001\u533a\u5757\u548c\u7f51\u7edc\u72b6\u6001\u7b49\u3002<\/li>\n\n\n\n
- web3.eth.Contract\uff1a\u7528\u4e8e\u521b\u5efa\u667a\u80fd\u5408\u7ea6\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528\u667a\u80fd\u5408\u7ea6ABI\u548c\u5730\u5740\u6765\u4e0e\u667a\u80fd\u5408\u7ea6\u8fdb\u884c\u4ea4\u4e92\u3002<\/li>\n\n\n\n
- web3.eth.getAccounts()\uff1a\u83b7\u53d6\u5f53\u524d\u7f51\u7edc\u4e0a\u6240\u6709\u8d26\u6237\u7684\u5217\u8868\u3002<\/li>\n\n\n\n
- web3.eth.getBlock()\uff1a\u83b7\u53d6\u6307\u5b9a\u533a\u5757\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u533a\u5757\u54c8\u5e0c\u3001\u65f6\u95f4\u6233\u3001\u4ea4\u6613\u6570\u91cf\u7b49\u3002<\/li>\n\n\n\n
- web3.eth.getTransaction()\uff1a\u83b7\u53d6\u6307\u5b9a\u4ea4\u6613\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u4ea4\u6613\u54c8\u5e0c\u3001\u53d1\u9001\u65b9\u3001\u63a5\u6536\u65b9\u3001\u4ea4\u6613\u91d1\u989d\u7b49\u3002<\/li>\n\n\n\n
- web3.eth.sendTransaction()\uff1a\u53d1\u9001\u4e00\u7b14\u4ea4\u6613\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u3002<\/li>\n\n\n\n
- web3.eth.personal.unlockAccount()\uff1a\u89e3\u9501\u6307\u5b9a\u8d26\u6237\uff0c\u4f7f\u5176\u53ef\u4ee5\u53d1\u9001\u4ea4\u6613\u3002<\/li>\n\n\n\n
- web3.eth.Contract.methods\uff1a\u7528\u4e8e\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7684\u51fd\u6570\uff0c\u9700\u8981\u4f20\u9012\u6240\u9700\u7684\u53c2\u6570\u3002<\/li>\n\n\n\n
- web3.eth.Contract.deploy()\uff1a\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u4e0a\u3002<\/li>\n\n\n\n
- web3.utils\uff1a\u7528\u4e8e\u5904\u7406\u4ee5\u592a\u574a\u5730\u5740\u3001\u5b57\u8282\u7801\u3001\u6570\u5b57\u3001\u65e5\u671f\u7b49\u5e38\u7528\u7c7b\u578b\u7684\u5de5\u5177\u51fd\u6570\u5e93\u3002<\/li>\n<\/ol>\n\n\n\n
\u9664\u4e86\u4e0a\u8ff0\u5e38\u7528\u7684API\u548c\u65b9\u6cd5\u4e4b\u5916\uff0cWeb3.js\u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u5176\u4ed6\u7684API\u548c\u65b9\u6cd5\uff0c\u4f8b\u5982\u4f7f\u7528HTTP\u63d0\u4f9b\u7a0b\u5e8f\u548cWebSocket\u63d0\u4f9b\u7a0b\u5e8f\u4e0e\u4ee5\u592a\u574a\u8282\u70b9\u8fdb\u884c\u901a\u4fe1\u3001\u4f7f\u7528IPFS\u7b49\u5916\u90e8\u670d\u52a1\u4e0e\u4ee5\u592a\u574a\u8fdb\u884c\u4ea4\u4e92\u7b49\u3002Web3.js\u7684API\u548c\u65b9\u6cd5\u975e\u5e38\u4e30\u5bcc\uff0c\u53ef\u4ee5\u6839\u636e\u9879\u76ee\u9700\u6c42\u548c\u4e2a\u4eba\u559c\u597d\u9009\u62e9\u5408\u9002\u7684API\u548c\u65b9\u6cd5\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91ca\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u7f51\u7edc\u662f\u6307\u7531\u591a\u4e2a\u8282\u70b9\u7ec4\u6210\u7684\u53bb\u4e2d\u5fc3\u5316\u7684\u533a\u5757\u94fe\u7f51\u7edc\uff0c\u7528\u4e8e\u6267\u884c\u4ee5\u592a\u574a\u667a\u80fd\u5408\u7ea6\u548c\u5904\u7406\u4ee5\u592a\u574a\u4ea4\u6613\u3002\u4ee5\u592a\u574a\u7f51\u7edc\u53ef\u4ee5\u5206\u4e3a\u51e0\u79cd\u7c7b\u578b\uff0c\u5305\u62ec\u4e3b\u7f51\u3001\u6d4b\u8bd5\u7f51\u7edc\u548c\u79c1\u6709\u7f51\u7edc\u7b49\u3002<\/p>\n\n\n\n
\u8282\u70b9\u662f\u6307\u8fde\u63a5\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u5e76\u7ef4\u62a4\u7f51\u7edc\u72b6\u6001\u7684\u8ba1\u7b97\u673a\u7a0b\u5e8f\u3002\u8282\u70b9\u53ef\u4ee5\u662f\u5b8c\u6574\u8282\u70b9\u3001\u8f7b\u91cf\u7ea7\u8282\u70b9\u6216\u8005\u5176\u4ed6\u7c7b\u578b\u7684\u8282\u70b9\u3002\u5b8c\u6574\u8282\u70b9\u662f\u6307\u80fd\u591f\u4fdd\u5b58\u5b8c\u6574\u7684\u533a\u5757\u94fe\u6570\u636e\u5e76\u9a8c\u8bc1\u6bcf\u4e2a\u4ea4\u6613\u7684\u8282\u70b9\u3002\u8f7b\u91cf\u7ea7\u8282\u70b9\u5219\u53ea\u4fdd\u5b58\u533a\u5757\u5934\uff0c\u53ef\u4ee5\u5feb\u901f\u540c\u6b65\u7f51\u7edc\u72b6\u6001\u3002\u5176\u4ed6\u7c7b\u578b\u7684\u8282\u70b9\u5305\u62ec\u77ff\u5de5\u8282\u70b9\u3001\u94b1\u5305\u8282\u70b9\u548c\u667a\u80fd\u5408\u7ea6\u8282\u70b9\u7b49\u3002<\/p>\n\n\n\n
\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406\u5305\u62ec\u4ee5\u4e0b\u65b9\u9762\uff1a<\/p>\n\n\n\n
- \n
- \u8282\u70b9\u7684\u9009\u62e9\uff1a\u6839\u636e\u9700\u6c42\u9009\u62e9\u9002\u5408\u7684\u8282\u70b9\u7c7b\u578b\u548c\u670d\u52a1\u63d0\u4f9b\u5546\u3002\u5e38\u89c1\u7684\u4ee5\u592a\u574a\u8282\u70b9\u670d\u52a1\u5305\u62ecInfura\u3001Alchemy\u548cQuickNode\u7b49\u3002<\/li>\n\n\n\n
- \u8282\u70b9\u7684\u540c\u6b65\uff1a\u8282\u70b9\u9700\u8981\u4e0e\u7f51\u7edc\u540c\u6b65\uff0c\u4e0b\u8f7d\u5e76\u9a8c\u8bc1\u533a\u5757\u94fe\u4e0a\u7684\u4ea4\u6613\u548c\u667a\u80fd\u5408\u7ea6\u4ee3\u7801\u3002<\/li>\n\n\n\n
- \u8282\u70b9\u7684\u7ef4\u62a4\uff1a\u8282\u70b9\u9700\u8981\u8fdb\u884c\u5b9a\u671f\u7684\u7ef4\u62a4\u548c\u5347\u7ea7\uff0c\u4ee5\u786e\u4fdd\u8282\u70b9\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\u3002<\/li>\n\n\n\n
- \u8282\u70b9\u7684\u5b89\u5168\uff1a\u8282\u70b9\u9700\u8981\u91c7\u53d6\u9002\u5f53\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u4f8b\u5982\u9650\u5236\u5bf9\u8282\u70b9\u7684\u8bbf\u95ee\u3001\u4f7f\u7528\u9632\u706b\u5899\u548c\u5b89\u5168\u8f6f\u4ef6\u7b49\u3002<\/li>\n\n\n\n
- \u8282\u70b9\u7684\u6027\u80fd\uff1a\u8282\u70b9\u9700\u8981\u5177\u6709\u8db3\u591f\u7684\u6027\u80fd\u6765\u5904\u7406\u4ea4\u6613\u548c\u667a\u80fd\u5408\u7ea6\u7684\u6267\u884c\uff0c\u4ee5\u907f\u514d\u7f51\u7edc\u5ef6\u8fdf\u548c\u62e5\u585e\u3002<\/li>\n\n\n\n
- \u8282\u70b9\u7684\u76d1\u63a7\uff1a\u9700\u8981\u5bf9\u8282\u70b9\u8fdb\u884c\u76d1\u63a7\uff0c\u4ee5\u68c0\u6d4b\u7f51\u7edc\u95ee\u9898\u3001\u8282\u70b9\u5d29\u6e83\u548c\u5b89\u5168\u6f0f\u6d1e\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n
\u603b\u7684\u6765\u8bf4\uff0c\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406\u662f\u8fdb\u884c\u4ee5\u592a\u574a\u5f00\u53d1\u548c\u4ea4\u6613\u7684\u5173\u952e\u6b65\u9aa4\u4e4b\u4e00\u3002\u4e86\u89e3\u548c\u638c\u63e1\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406\u6280\u672f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528\u4ee5\u592a\u574a\u533a\u5757\u94fe\u6280\u672f\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91caweb3.js API\u4ea4\u6613\u548c\u5408\u7ea6\u5904\u7406<\/p>\n\n\n\n
Web3.js API\u63d0\u4f9b\u4e86\u4e00\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u5904\u7406\u4ee5\u592a\u574a\u4ea4\u6613\u548c\u667a\u80fd\u5408\u7ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684Web3.js API\u4ea4\u6613\u548c\u5408\u7ea6\u5904\u7406\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- web3.eth.sendTransaction()\uff1a\u7528\u4e8e\u53d1\u9001\u4e00\u7b14\u4ea4\u6613\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u3002\u9700\u8981\u4f20\u9012\u4e00\u4e9b\u53c2\u6570\uff0c\u4f8b\u5982\u53d1\u9001\u65b9\u5730\u5740\u3001\u63a5\u6536\u65b9\u5730\u5740\u3001\u4ea4\u6613\u91d1\u989d\u3001gas\u8d39\u7528\u7b49\u3002\u4ea4\u6613\u53d1\u9001\u6210\u529f\u540e\uff0c\u4f1a\u8fd4\u56de\u4ea4\u6613\u54c8\u5e0c\u3002<\/li>\n\n\n\n
- web3.eth.getTransaction()\uff1a\u7528\u4e8e\u67e5\u8be2\u6307\u5b9a\u4ea4\u6613\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u4ea4\u6613\u54c8\u5e0c\u3001\u53d1\u9001\u65b9\u3001\u63a5\u6536\u65b9\u3001\u4ea4\u6613\u91d1\u989d\u7b49\u3002<\/li>\n\n\n\n
- web3.eth.getTransactionReceipt()\uff1a\u7528\u4e8e\u67e5\u8be2\u6307\u5b9a\u4ea4\u6613\u7684\u6536\u636e\u4fe1\u606f\uff0c\u4f8b\u5982\u4ea4\u6613\u72b6\u6001\u3001gas\u4f7f\u7528\u60c5\u51b5\u3001\u65e5\u5fd7\u4fe1\u606f\u7b49\u3002<\/li>\n\n\n\n
- web3.eth.Contract.methods\uff1a\u7528\u4e8e\u8c03\u7528\u667a\u80fd\u5408\u7ea6\u7684\u51fd\u6570\uff0c\u9700\u8981\u4f20\u9012\u6240\u9700\u7684\u53c2\u6570\u3002\u4f7f\u7528\u6b64\u65b9\u6cd5\u9700\u8981\u5148\u521b\u5efa\u667a\u80fd\u5408\u7ea6\u5bf9\u8c61\u3002<\/li>\n\n\n\n
- web3.eth.Contract.deploy()\uff1a\u7528\u4e8e\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u5230\u4ee5\u592a\u574a\u7f51\u7edc\u4e0a\u3002<\/li>\n\n\n\n
- web3.eth.Contract.events\uff1a\u7528\u4e8e\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e2d\u7684\u4e8b\u4ef6\u3002\u9700\u8981\u4f20\u9012\u4e8b\u4ef6\u540d\u79f0\u548c\u56de\u8c03\u51fd\u6570\u3002<\/li>\n\n\n\n
- web3.eth.Contract.getPastEvents()\uff1a\u7528\u4e8e\u67e5\u8be2\u667a\u80fd\u5408\u7ea6\u4e2d\u5386\u53f2\u53d1\u751f\u7684\u4e8b\u4ef6\u3002\u9700\u8981\u4f20\u9012\u4e8b\u4ef6\u540d\u79f0\u3001\u8fc7\u6ee4\u5668\u548c\u56de\u8c03\u51fd\u6570\u3002<\/li>\n\n\n\n
- web3.utils.toWei()\u548cweb3.utils.fromWei()\uff1a\u7528\u4e8e\u5c06\u4ee5\u592a\u574a\u6570\u91cf\u8f6c\u6362\u4e3awei\u6216\u53cd\u5411\u8f6c\u6362\u3002<\/li>\n<\/ol>\n\n\n\n
\u9664\u4e86\u4e0a\u8ff0\u5e38\u7528\u7684Web3.js API\u4ea4\u6613\u548c\u5408\u7ea6\u5904\u7406\u65b9\u6cd5\u4e4b\u5916\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7684API\u548c\u65b9\u6cd5\uff0c\u4f8b\u5982\u4f7f\u7528gas\u4ef7\u683c\u548cgas\u9650\u5236\u8fdb\u884c\u4ea4\u6613\u3001\u4f7f\u7528HD\u94b1\u5305\u751f\u6210\u548c\u7ba1\u7406\u4ee5\u592a\u574a\u8d26\u6237\u3001\u4f7f\u7528ERC20\u548cERC721\u6807\u51c6\u5904\u7406\u4ee3\u5e01\u4ea4\u6613\u7b49\u3002Web3.js\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u9879\u76ee\u9700\u6c42\u548c\u4e2a\u4eba\u559c\u597d\u9009\u62e9\u5408\u9002\u7684API\u548c\u65b9\u6cd5\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91caweb3.js API\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668<\/p>\n\n\n\n
Web3.js API\u63d0\u4f9b\u4e86\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668\uff0c\u7528\u4e8e\u76d1\u542c\u4ee5\u592a\u574a\u533a\u5757\u94fe\u4e2d\u7684\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684Web3.js API\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- web3.eth.Contract.events\uff1a\u7528\u4e8e\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e2d\u7684\u4e8b\u4ef6\u3002\u9700\u8981\u4f20\u9012\u4e8b\u4ef6\u540d\u79f0\u548c\u56de\u8c03\u51fd\u6570\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n
javascriptCopy code
myContract.events.MyEvent({\n fromBlock: 0,\n toBlock: 'latest'\n}, function(error, event){\n console.log(event);\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528events()\u65b9\u6cd5\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e2d\u7684MyEvent\u4e8b\u4ef6\u3002\u6211\u4eec\u8fd8\u4f20\u9012\u4e86\u4e00\u4e2a\u8fc7\u6ee4\u5668\uff0c\u7528\u4e8e\u9650\u5236\u4e8b\u4ef6\u8303\u56f4\uff0c\u4ece0\u53f7\u533a\u5757\u5230\u6700\u65b0\u7684\u533a\u5757\u3002<\/p>\n\n\n\n
- \n
- web3.eth.Contract.getPastEvents()\uff1a\u7528\u4e8e\u67e5\u8be2\u667a\u80fd\u5408\u7ea6\u4e2d\u5386\u53f2\u53d1\u751f\u7684\u4e8b\u4ef6\u3002\u9700\u8981\u4f20\u9012\u4e8b\u4ef6\u540d\u79f0\u3001\u8fc7\u6ee4\u5668\u548c\u56de\u8c03\u51fd\u6570\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n
javascriptCopy code
myContract.getPastEvents('MyEvent', {\n filter: {myVar: [1, 2, 3]},\n fromBlock: 0,\n toBlock: 'latest'\n}, function(error, events){\n console.log(events);\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528getPastEvents()\u65b9\u6cd5\u67e5\u8be2\u667a\u80fd\u5408\u7ea6\u4e2dMyEvent\u4e8b\u4ef6\u7684\u5386\u53f2\u8bb0\u5f55\u3002\u6211\u4eec\u8fd8\u4f20\u9012\u4e86\u4e00\u4e2a\u8fc7\u6ee4\u5668\uff0c\u7528\u4e8e\u9650\u5236\u4e8b\u4ef6\u8303\u56f4\u548c\u7b5b\u9009\u4e8b\u4ef6\u6570\u636e\u3002<\/p>\n\n\n\n
- \n
- web3.eth.subscribe()\uff1a\u7528\u4e8e\u8ba2\u9605\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\u7684\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n
javascriptCopy code
web3.eth.subscribe('logs', {\n address: '0x123456...',\n topics: ['0x123456...']\n}, function(error, result){\n console.log(result);\n});\n<\/code><\/pre>\n\n\n\n\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528subscribe()\u65b9\u6cd5\u8ba2\u9605\u4ee5\u592a\u574a\u7f51\u7edc\u4e2d\u7684\u65e5\u5fd7\u4e8b\u4ef6\uff0c\u5e76\u4f20\u9012\u4e86\u4e00\u4e2a\u8fc7\u6ee4\u5668\uff0c\u7528\u4e8e\u9650\u5236\u4e8b\u4ef6\u8303\u56f4\u548c\u7b5b\u9009\u4e8b\u4ef6\u6570\u636e\u3002<\/p>\n\n\n\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cWeb3.js\u7684\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668API\u53ef\u4ee5\u7528\u4e8e\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e2d\u7684\u4e8b\u4ef6\u548c\u4ea4\u6613\uff0c\u4ee5\u53ca\u67e5\u8be2\u5386\u53f2\u4e8b\u4ef6\u548c\u4ea4\u6613\u6570\u636e\u3002\u4f7f\u7528\u4e8b\u4ef6\u548c\u8fc7\u6ee4\u5668\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u5b9e\u65f6\u6027\u548c\u54cd\u5e94\u6027\uff0c\u5e76\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u66f4\u597d\u5730\u7406\u89e3\u548c\u5206\u6790\u4ee5\u592a\u574a\u533a\u5757\u94fe\u6570\u636e\u3002<\/p>\n\n\n\n\n\n
\u8bf7\u8be6\u7ec6\u89e3\u91caweb3.js API\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406<\/p>\n\n\n\n
Web3.js API\u63d0\u4f9b\u4e86\u8bb8\u591a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4e8e\u5904\u7406\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684Web3.js API\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
- \n
- web3.eth.net.getId()\uff1a\u83b7\u53d6\u5f53\u524d\u7f51\u7edc\u7684ID\uff0c\u4f8b\u59821\u8868\u793a\u4ee5\u592a\u574a\u4e3b\u7f51\uff0c3\u8868\u793aRopsten\u6d4b\u8bd5\u7f51\u7edc\u3002<\/li>\n\n\n\n
- web3.eth.net.getPeerCount()\uff1a\u83b7\u53d6\u5f53\u524d\u7f51\u7edc\u4e0a\u7684\u8282\u70b9\u6570\u91cf\u3002<\/li>\n\n\n\n
- web3.eth.net.isListening()\uff1a\u68c0\u67e5\u5f53\u524d\u7f51\u7edc\u662f\u5426\u6b63\u5728\u76d1\u542c\u3002<\/li>\n\n\n\n
- web3.eth.getProtocolVersion()\uff1a\u83b7\u53d6\u5f53\u524d\u4f7f\u7528\u7684\u4ee5\u592a\u574a\u534f\u8bae\u7248\u672c\u3002<\/li>\n\n\n\n
- web3.eth.getSyncing()\uff1a\u83b7\u53d6\u5f53\u524d\u8282\u70b9\u540c\u6b65\u72b6\u6001\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n\n\n\n
- web3.eth.isSyncing()\uff1a\u68c0\u67e5\u5f53\u524d\u8282\u70b9\u662f\u5426\u6b63\u5728\u540c\u6b65\u533a\u5757\u94fe\u3002<\/li>\n\n\n\n
- web3.eth.getGasPrice()\uff1a\u83b7\u53d6\u5f53\u524d\u7f51\u7edc\u4e0a\u7684\u5e73\u5747gas\u4ef7\u683c\u3002<\/li>\n\n\n\n
- web3.eth.getBlockNumber()\uff1a\u83b7\u53d6\u5f53\u524d\u7f51\u7edc\u4e0a\u6700\u65b0\u7684\u533a\u5757\u53f7\u3002<\/li>\n\n\n\n
- web3.eth.getBlock()\uff1a\u83b7\u53d6\u6307\u5b9a\u533a\u5757\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u533a\u5757\u54c8\u5e0c\u3001\u65f6\u95f4\u6233\u3001\u4ea4\u6613\u6570\u91cf\u7b49\u3002<\/li>\n\n\n\n
- web3.eth.getNodeInfo()\uff1a\u83b7\u53d6\u5f53\u524d\u8282\u70b9\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u4f8b\u5982\u8282\u70b9\u540d\u79f0\u3001\u534f\u8bae\u7248\u672c\u3001\u7f51\u7edcID\u7b49\u3002<\/li>\n<\/ol>\n\n\n\n
\u9664\u4e86\u4e0a\u8ff0\u5e38\u7528\u7684Web3.js API\u4ee5\u592a\u574a\u7f51\u7edc\u548c\u8282\u70b9\u7ba1\u7406\u65b9\u6cd5\u4e4b\u5916\uff0c\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u7684API\u548c\u65b9\u6cd5\uff0c\u4f8b\u5982\u4f7f\u7528HTTP\u63d0\u4f9b\u7a0b\u5e8f\u548cWebSocket\u63d0\u4f9b\u7a0b\u5e8f\u4e0e\u4ee5\u592a\u574a\u8282\u70b9\u8fdb\u884c\u901a\u4fe1\u3001\u4f7f\u7528IPFS\u7b49\u5916\u90e8\u670d\u52a1\u4e0e\u4ee5\u592a\u574a\u8fdb\u884c\u4ea4\u4e92\u7b49\u3002Web3.js\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684API\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u9879\u76ee\u9700\u6c42\u548c\u4e2a\u4eba\u559c\u597d\u9009\u62e9\u5408\u9002\u7684API\u548c\u65b9\u6cd5\u3002<\/p>\n\n\n\n
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