{"id":244848,"date":"2023-02-11T13:36:47","date_gmt":"2023-02-11T05:36:47","guid":{"rendered":"https:\/\/www.idc.net\/help\/244848\/"},"modified":"2023-02-11T13:36:47","modified_gmt":"2023-02-11T05:36:47","slug":"%e5%ba%93%e5%af%b9%e6%af%94%ef%bc%9aweb3-js-%e4%b8%8e-ethers-js","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/244848\/","title":{"rendered":"\u5e93\u5bf9\u6bd4\uff1aWeb3.js \u4e0e Ethers.js"},"content":{"rendered":"<p>\u6bcf\u4e00\u4e2a\u53ef\u7f16\u7a0b\u7684\u533a\u5757\u94fe\u90fd\u6709\u4e00\u5957SDK\u6216\u5e93\uff0c\u5e2e\u52a9\u8fde\u63a5\u5e76\u4e0e\u7279\u5b9a\u7684\u533a\u5757\u94fe\u901a\u4fe1\u3002\u4eca\u5929\u7684\u5927\u591a\u6570\u533a\u5757\u94fe\u90fd\u4f9d\u8d56\u4e8e\u4ee5\u592a\u574a\u7f51\u7edc\uff0c\u4f7f\u5176\u4e0eEVM\u517c\u5bb9\u3002\u5982\u679c\u521b\u5efa\u4e86ETH\u5e93\uff0c\u5c31\u6709\u53ef\u80fd\u5728\u4efb\u4f55\u4e0eEVM\u517c\u5bb9\u7684\u533a\u5757\u94fe\u4e0a\u4f7f\u7528\u5b83\u3002\u7136\u800c\uff0c\u901a\u4fe1\u662f\u53ef\u4ee5\u4f7f\u7528JSON-RPC\u534f\u8bae\u7684\u3002<\/p>\n<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u5bf9\u4e24\u4e2a\u6d41\u884c\u7684ETH\u5e93\u8fdb\u884c\u6bd4\u8f83\u3002\u4f60\u53ef\u4ee5\u4e86\u89e3\u5230\u4ed6\u4eec\u4e4b\u95f4\u7684\u5dee\u5f02\uff0c\u4ed6\u4eec\u7684\u4f18\u70b9\u548c\u7f3a\u70b9\u3002\u8fd9\u7bc7\u6587\u7ae0\u4e5f\u53ef\u4ee5\u5e2e\u52a9\u4f60\u51b3\u5b9a\u5728\u672a\u6765\u7684\u9879\u76ee\u4e2d\u4f7f\u7528\u4ec0\u4e48\u5e93\u3002<\/p>\n<h2>\u7528\u4e8e\u533a\u5757\u94fe\u7684 JavaScript<\/h2>\n<p>\u81ea 1995 \u5e74 Brendan Eich \u53d1\u660e JavaScript \u4ee5\u6765\uff0c\u5b83\u5df2\u53d1\u5c55\u6210\u4e3a\u4e92\u8054\u7f51\u4e0a\u6700\u5e38\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u7528\u4e8e\u6784\u5efa\u5f53\u4eca\u4f7f\u7528\u7684\u8bb8\u591a\u5de5\u5177\u3002\u636eStatista[1]\u79f0\uff0c\u8f6f\u4ef6\u5f00\u53d1\u4eba\u5458\u4e2d\u6700\u5e38\u7528\u7684\u8bed\u8a00\u662f JavaScript\u3002<\/p>\n<p>\u60f3\u8c61\u4e00\u4e0b\u4f60\u9700\u8981\u89e3\u51b3\u4e00\u4e2a\u7279\u5b9a\u7684\u95ee\u9898\uff1b\u4f60\u77e5\u9053\u7684\u552f\u4e00\u8bed\u8a00\u662f JavaScript\u3002\u5e94\u8be5\u53ef\u4ee5\u4f7f\u7528 JavaScript \u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u800c\u4e0d\u662f\u5b66\u4e60\u4e00\u95e8\u65b0\u7684\u9ad8\u7ea7\u8bed\u8a00\u6765\u89e3\u51b3\u95ee\u9898\u3002\u8bb8\u591a\u5f00\u53d1\u4eba\u5458\u90fd\u9762\u4e34\u7740\u8fd9\u4e2a\u969c\u788d\uff0c\u5e76\u627e\u5230\u4e86\u901a\u8fc7\u6784\u5efa\u53ef\u4ee5\u901a\u8fc7\u8282\u70b9\u63d0\u4f9b\u5546\u8fde\u63a5\u5230\u533a\u5757\u94fe\u7684 SDK\/\u5e93\u6765\u4f7f\u7528 JavaScript \u6784\u5efa dApp \u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u7136\u800c\uff0c\u8fd9\u79cd\u53d8\u901a\u964d\u4f4e\u4e86\u5728\u533a\u5757\u94fe\u7a7a\u95f4\u4e2d\u6784\u5efa\u7684\u5165\u95e8\u7ea7\u522b\u3002\u60a8\u65e0\u9700\u5b66\u4e60 Rust \u548c Solidity \u7b49\u9ad8\u7ea7\u8bed\u8a00\u5373\u53ef\u4e3aSolana[2]\u6216\u4ee5\u592a\u574a\u94fe\u6784\u5efadApp[3]\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u964d\u4f4e\u533a\u5757\u94fe\u5f00\u53d1\u7684\u5165\u95e8\u6c34\u5e73\u662fJavaScript\u7684\u4f17\u591a\u597d\u5904\u4e4b\u4e00\u3002<\/p>\n<h2>\u4ec0\u4e48\u662f\u5e93<\/h2>\n<p>\u5728\u7f16\u5199 dApp \u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u53d1\u73b0\u9700\u8981\u4e3a\u533a\u5757\u94fe\u4e0a\u7684\u7279\u5b9a\u4ea4\u6613\u91cd\u590d\u7684\u7279\u5b9a\u4ee3\u7801\u3002\u6b64\u4ee3\u7801\/\u7a0b\u5e8f\u53ef\u80fd\u5f88\u957f\uff0c\u60a8\u5fc5\u987b\u4e3a\u65b0\u9879\u76ee\u7ee7\u7eed\u7f16\u5199\u6b64\u4ee3\u7801\u3002\u65e0\u9700\u91cd\u590d\u6b64\u7a0b\u5e8f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee3\u7801\u7247\u6bb5\u81ea\u52a8\u6267\u884c\u8be5\u8fc7\u7a0b\u3002\u60a8\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u968f\u65f6\u5c06\u6b64\u5e93\u63d2\u5165\u5230\u60a8\u7684\u9879\u76ee\u4e2d\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u52a0\u5feb\u5f00\u53d1\u901f\u5ea6\u5e76\u6d88\u9664\u91cd\u590d\u3002<\/p>\n<h2>JavaScript \u6a21\u5757<\/h2>\n<p>Javascript \u6a21\u5757\u662f\u5305\u542b JavaScript \u51fd\u6570\u6216\u4ee3\u7801\u7c07\u7684\u5178\u578b\u6587\u4ef6\u3002\u60a8\u53ef\u4ee5\u5c06\u5b83\u4eec\u63d0\u53d6\u5230\u4e0d\u540c\u7684\u6587\u4ef6\u4e2d\uff0c\u800c\u4e0d\u662f\u8ba9\u51fd\u6570\u904d\u5e03\u60a8\u7684\u4ee3\u7801\u3002\u521b\u5efa\u6a21\u5757\u4f7f\u66f4\u6539\u53d8\u5f97\u975e\u5e38\u5bb9\u6613\uff0c\u56e0\u4e3a\u60a8\u4e0d\u5fc5\u5f00\u59cb\u67e5\u770b\u5927\u578b\u4ee3\u7801\u5e93\u6765\u67e5\u627e\u7279\u5b9a\u51fd\u6570\u6765\u66f4\u65b0\u53d8\u91cf\u6216\u6a21\u5f0f\u3002<\/p>\n<p>\u7531\u4e8eJavascript\u672c\u8eab\u4e0d\u652f\u6301\u7c7b\uff0c\u6240\u4ee5JavaScript\u6a21\u5757\u6a21\u4eff\u4e86\u7c7b\u3002\u7c7b\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u5728\u5355\u4e2a\u5bf9\u8c61\u4e2d\u5c06\u65b9\u6cd5\u548c\u5b57\u6bb5\u8bbe\u4e3a\u516c\u5171\u548c\u79c1\u6709\u3002\u901a\u8fc7\u8fd9\u79cd\u6a21\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 export \u548c import \u5173\u952e\u5b57\u5728\u6211\u4eec\u7684 JavaScript \u9879\u76ee\u4e2d\u521b\u5efa\u548c\u4f7f\u7528\u51fd\u6570\u3002\u8bf7\u53c2\u89c1\u4e0b\u9762\u7684\u793a\u4f8b\uff1a<\/p>\n<pre>export function myFunction<span style=\"color: #997\">(<\/span>value1<span>,<\/span> value2<span style=\"color: #997\">)<\/span> <span style=\"color: #997\">{<\/span><br>  return value1 <span style=\"color: #d73a49\">*<\/span> value2<span>;<\/span><br><span style=\"color: #997\">}<\/span><\/pre>\n<p>\u4ece\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u5c06\u8fd9\u4e2a\u51fd\u6570\u516c\u5f00\u3002\u4e3a\u4e86\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u6240\u793a\u7684 import \u5173\u952e\u5b57\uff1a<\/p>\n<pre>import myFunction <span style=\"color: #d73a49\">from<\/span> <span style=\"color: #690\">\".\/value.js\"<\/span><\/pre>\n<p>\u73b0\u5728\u6211\u4eec\u4e86\u89e3\u4e86 JavaScript \u6a21\u5757\u3002\u8ba9\u6211\u4eec\u5728\u4e0b\u4e00\u8282\u4e2d\u8ba8\u8bba ethers.js \u5e93\u3002<\/p>\n<h2>Ethers.js<\/h2>\n<p>\u81ea Ethers.js \u8bde\u751f\u4ee5\u6765\uff0c\u5b83\u7ecf\u5386\u4e86\u7a33\u5b9a\u7684\u589e\u957f\uff0c\u751a\u81f3\u6210\u4e3a\u4ee5\u592a\u574a\u5f00\u53d1\u4eba\u5458\u4e2d\u6700\u5e38\u7528\u7684\u57fa\u4e8e JavaScript \u7684 web3 \u5e93\u4e4b\u4e00\u3002<\/p>\n<p>\u8be5\u5de5\u5177\u53ef\u5e2e\u52a9 Javascript \u5f00\u53d1\u4eba\u5458\u4e0e\u4ee5\u592a\u574a\u94fe\u548c\u4efb\u4f55\u4ee5\u592a\u574a\u865a\u62df\u673a (EVM) \u517c\u5bb9\u7684\u533a\u5757\u94fe\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n<p>\u4e00\u4f4d\u540d\u53eb Richard Moore \u7684\u52a0\u62ff\u5927\u8f6f\u4ef6\u5de5\u7a0b\u5e08\u5728 2015 \u5e74\u521b\u5efa\u4e86 ethers.js \u4f5c\u4e3a web3.js \u7684\u66ff\u4ee3\u54c1\u3002<\/p>\n<p>Ethers.js \u4ee5\u8f7b\u91cf\u7ea7\u7740\u79f0\u3002\u5b83\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u5b83\u7ba1\u7406\u5bc6\u94a5\u548c\u4e0e\u533a\u5757\u94fe\u4ea4\u4e92\u7684\u65b9\u5f0f\u3002\u5728 ethers.js \u4e2d\uff0c\u6709\u4e24\u4e2a\u5b9e\u4f53\u5904\u7406\u4e0a\u8ff0\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>1. \u4f7f\u7528\u79c1\u94a5\u7b7e\u7f72\u4ea4\u6613\u7684\u94b1\u5305\u3002<\/li>\n<li>2. \u4f7f\u7528 JSON-RPC URL \u8fde\u63a5\u5230\u533a\u5757\u94fe\u7684\u63d0\u4f9b\u7a0b\u5e8f\u3002Ethers.js \u68c0\u67e5\u72b6\u6001\u5e76\u53d1\u9001\u4ea4\u6613\u3002<\/li>\n<\/ol>\n<h3>Ethers.js \u7684\u4f18\u52bf<\/h3>\n<ul>\n<li>\u5e93\u5927\u5c0f&nbsp;- Ethers.js \u538b\u7f29\u540e\u4e3a 88KB\uff0c\u672a\u538b\u7f29\u65f6\u4e3a 284KB\u3002<\/li>\n<li>ENS&nbsp;- ENS \u5c31\u50cf\u533a\u5757\u94fe\u4e2d\u7684 DNS\u3002\u65e0\u8bba\u5728\u54ea\u91cc\u4f7f\u7528\u4ee5\u592a\u574a\u5730\u5740\uff0c\u4e5f\u53ef\u4ee5\u5728\u90a3\u91cc\u4f7f\u7528 .eth \u5730\u5740\u3002\u60a8\u65e0\u9700\u6837\u677f\u4ee3\u7801\u5373\u53ef\u8f7b\u677e\u8bbe\u7f6e\u57df\u540d\u3002<\/li>\n<li>\u6d4b\u8bd5&nbsp;- ethers.js\u7ecf\u8fc7\u5e7f\u6cdb\u6d4b\u8bd5\u3002\u5176\u4e2d\u8bb8\u591a\u6d4b\u8bd5\u7528\u4f8b\u90fd\u662f\u7531 Richard Moore \u4eb2\u81ea\u7f16\u5199\u7684\u3002\u6709\u8d85\u8fc7 10,000 \u4e2a\u6d4b\u8bd5\u7528\u4f8b\u3002<\/li>\n<li>\u8bb8\u53ef&nbsp;- \u7531\u4e8e ethers.js \u662f\u5728 MIT \u8bb8\u53ef\u4e0b\u53d1\u5e03\u7684\uff0c\u4efb\u4f55\u4eba\u90fd\u53ef\u4ee5\u514d\u8d39\u4f7f\u7528\u548c\u4fee\u6539\u5b83\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u53ea\u8981\u4fee\u6539\u7684\u6e90\u4ee3\u7801\u5728 LGPL-3.0 \u8bb8\u53ef\u4e0b\u53ef\u7528\uff0c\u5c31\u53ef\u4ee5\u66f4\u6539\u5e93\u3002<\/li>\n<\/ul>\n<pre><span style=\"color: #d73a49\">*<\/span>  <span style=\"color: #d73a49\">**<\/span>Performance<span style=\"color: #d73a49\">**<\/span> <span style=\"color: #d73a49\">-<\/span> Considering the small size<span>,<\/span> it will be a good idea to use it <span style=\"color: #d73a49\">on<\/span> the front end <span style=\"color: #d73a49\">as<\/span> it will drastically improve performance.<br><br><br>## Drawbacks of Ether<span style=\"color: #005cc5\">.js<\/span><br><br><span style=\"color: #d73a49\">*<\/span> Ethers<span style=\"color: #005cc5\">.js<\/span> <span style=\"color: #d73a49\">is<\/span> relatively new. <span style=\"color: #d73a49\">Having<\/span> bugs <span style=\"color: #d73a49\">in<\/span> your code <span style=\"color: #d73a49\">is<\/span> unavoidable<span>,<\/span> so finding answers <span style=\"color: #d73a49\">in<\/span> places <span style=\"color: #d73a49\">like<\/span> StackOverflow might <span style=\"color: #d73a49\">not<\/span> be enough.<br><br><span style=\"color: #d73a49\">*<\/span> Many foundational companies actively use web3<span style=\"color: #005cc5\">.js<\/span> for their core projects<span>,<\/span> <span style=\"color: #d73a49\">and<\/span> if you need to work for such companies<span>,<\/span> you might need to spend some more <span style=\"color: #22863a\">time<\/span> learning web3<span style=\"color: #005cc5\">.js<\/span>.<\/pre>\n<h3>Ethers.js \u6a21\u5757<\/h3>\n<p>\u5728\u6700\u8fd1\u7684\u90e8\u5206\u4e2d\uff0c\u5728\u6211\u4eec\u8ba8\u8bba Ethers.js \u4e4b\u524d\uff0c\u6211\u4eec\u67e5\u770b\u4e86 JavaScript \u6a21\u5757\uff0cethers.js \u6709\u56db (4) \u4e2a\u6a21\u5757\uff0c\u5b83\u4eec\u662f ethers.js API \u7684\u6838\u5fc3\u3002<\/p>\n<h4>Ethers.Provider<\/h4>\n<p>\u8981\u4e86\u89e3Ethers.Provider\u6a21\u5757\u7684\u4f5c\u7528\uff0c\u5fc5\u987b\u4e86\u89e3\u4ec0\u4e48\u662f\u8282\u70b9\u3002<\/p>\n<p>\u8981\u8bbf\u95ee\u533a\u5757\u94fe\u7f51\u7edc\uff0c\u60a8\u9700\u8981\u5728\u60a8\u7684\u673a\u5668\u4e0a\u8fd0\u884c\u4e00\u4e2a\u8282\u70b9\u6765\u8bbf\u95ee\u5b83\u3002\u8be5\u8282\u70b9\u8fde\u63a5\u5230\u5176\u4ed6\u8282\u70b9\u4ee5\u68c0\u67e5\u4eba\u4e0e\u4eba\u4e4b\u95f4\u7684\u4ea4\u6613\u662f\u5426\u6709\u6548\uff0c\u540c\u65f6\u5b83\u5b58\u50a8\u6709\u5173\u533a\u5757\u94fe\u72b6\u6001\u7684\u4fe1\u606f\u3002<\/p>\n<p>\u533a\u5757\u94fe\u5b8c\u5168\u7531\u8282\u70b9\u6784\u5efa\u6216\u7ec4\u6210\u3002\u8fd9\u4e9b\u8282\u70b9\u7531\u4e16\u754c\u5404\u5730\u7684\u4e2a\u4eba\u8fd0\u884c\u3002\u8fd9\u610f\u5473\u7740\u6ca1\u6709\u4e2d\u592e\u670d\u52a1\u5668\u6216\u5355\u4e00\u7684\u4e8b\u5b9e\u6765\u6e90\u3002\u8fd9\u5c31\u662f\u5b83\u53bb\u4e2d\u5fc3\u5316\u7684\u539f\u56e0\u3002\u5c06\u8282\u70b9\u60f3\u8c61\u6210\u6c7d\u8f66\u7684\u6c7d\u6cb9\uff0c\u5982\u679c\u5b83\u662f\u7a7a\u7684\uff0c\u5b83\u5c31\u4e0d\u4f1a\u542f\u52a8\u3002<\/p>\n<p>\u8282\u70b9\u7684\u5efa\u7acb\u53ef\u80fd\u662f\u4e00\u4e2a\u75db\u82e6\u7684\u8fc7\u7a0b\uff0c\u5b83\u53ef\u80fd\u9700\u8981\u4e00\u4e2a\u661f\u671f\u6216\u66f4\u957f\u65f6\u95f4\u3002\u5e78\u8fd0\u7684\u662f\uff0c\u5b58\u5728 Alchemy\u3001infura \u548c Quicknode \u7b49\u63d0\u4f9b\u5546\u3002\u4ed6\u4eec\u4e3a\u60a8\u8bbe\u7f6e\u4e86\u8282\u70b9\u3002\u4ed6\u4eec\u6240\u9700\u8981\u7684\u53ea\u662f\u8ba9\u60a8\u5efa\u7acb\u8fde\u63a5\uff0c\u5e76\u4e14\u60a8\u53ef\u4ee5\u8bbf\u95ee\u533a\u5757\u94fe\u3002<\/p>\n<h4>Ethers.Contract<\/h4>\n<p>\u8be5\u6a21\u5757\u7528\u4e8e\u90e8\u7f72\u667a\u80fd\u5408\u7ea6\u5e76\u4e0e\u4e4b\u4ea4\u4e92\u3002\u5b83\u63d0\u4f9b\u4e86\u76d1\u542c\u667a\u80fd\u5408\u7ea6\u4e8b\u4ef6\u7684\u80fd\u529b\uff08\u6253\u5305\u51fd\u6570\uff09\u3002\u4f46\u662f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u8be5\u6a21\u5757\u6765\u8c03\u7528\u6709\u5173\u667a\u80fd\u5408\u7ea6\u7684\u4fe1\u606f\u4ee5\u53ca\u667a\u80fd\u5408\u7ea6\u63d0\u4f9b\u7684\u529f\u80fd\u3002<\/p>\n<h4>Ethers.utils<\/h4>\n<p>\u8be5\u6a21\u5757\u53ef\u4ee5\u5e2e\u52a9\u60a8\u683c\u5f0f\u5316\u94b1\u5305\u4f59\u989d\u7b49\u6570\u636e\u5e76\u5904\u7406\u5176\u4ed6\u7528\u6237\u8f93\u5165\u3002<\/p>\n<pre>const accountChangedHandler <span style=\"color: #d73a49\">=<\/span> async <span style=\"color: #997\">(<\/span>newAccount<span style=\"color: #997\">)<\/span> <span style=\"color: #d73a49\">=&gt;<\/span> <span style=\"color: #997\">{<\/span><br>        const address <span style=\"color: #d73a49\">=<\/span> await newAccount<span style=\"color: #005cc5\">.getAddress<\/span><span style=\"color: #997\">(<\/span><span style=\"color: #997\">)<\/span><span>;<\/span><br>        setDefaultAccount<span style=\"color: #997\">(<\/span>address<span style=\"color: #997\">)<\/span><span>;<\/span><br>        const balance <span style=\"color: #d73a49\">=<\/span> await newAccount<span style=\"color: #005cc5\">.getBalance<\/span><span style=\"color: #997\">(<\/span><span style=\"color: #997\">)<\/span><br>        setUserBalance<span style=\"color: #997\">(<\/span>ethers<span style=\"color: #005cc5\">.utils<\/span><span style=\"color: #005cc5\">.formatEther<\/span><span style=\"color: #997\">(<\/span>balance<span style=\"color: #997\">)<\/span><span style=\"color: #997\">)<\/span><span>;<\/span><br>        await getuserBalance<span style=\"color: #997\">(<\/span>address<span style=\"color: #997\">)<\/span><br>    <span style=\"color: #997\">}<\/span><\/pre>\n<p>\u4ece\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u5728\u4ece\u94b1\u5305\u4e2d\u83b7\u53d6\u5730\u5740\u540e\uff0c\u6211\u4eec\u68c0\u7d22\u94b1\u5305\u7684\u4f59\u989d\uff0c\u4f46\u7531\u4e8e\u8fd4\u56de\u503c\u4ee5 Wei \u683c\u5f0f\u8f93\u51fa\uff0c\u6211\u4eec\u4f7f\u7528 .formatEther \u4f7f\u5176\u66f4\u6613\u4e8e\u9605\u8bfb\u3002<\/p>\n<p>Ethers.Wallet<\/p>\n<p>\u8be5\u6a21\u5757\u5141\u8bb8\u60a8\u8fde\u63a5\u5230\u73b0\u6709\u5730\u5740\u3002\u4f46\u662f\uff0c\u60a8\u53ef\u4ee5\u65e0\u7f1d\u5730\u7b7e\u7f72\u548c\u521b\u5efa\u65b0\u94b1\u5305\u3002<\/p>\n<h2>Web3.js<\/h2>\n<p>Web3.js \u4e5f\u662f\u4e00\u79cd\u6d41\u884c\u7684\u57fa\u4e8e JavaScript \u7684\u5e93\uff0c\u53ef\u5c06\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u533a\u5757\u94fe\u3002\u8be5\u5e93\u4f7f\u7528 HTTP\u3001IPC \u6216 Websockets \u8fd0\u884c\u672c\u5730\u6216\u8fdc\u7a0b\u4ee5\u592a\u574a\u8282\u70b9\u5e76\u4e0e\u4e4b\u4ea4\u4e92\u3002<\/p>\n<p>Web3.js \u4e8e 2015 \u5e74\u53d1\u5e03\uff0c\u5b83\u662f\u4e00\u4e2a\u7531\u4ee5\u592a\u574a\u57fa\u91d1\u4f1a\u81ea\u884c\u521b\u5efa\u7684\u5f00\u6e90\u5e93\u3002\u8fd9\u610f\u5473\u7740 web3.js \u62e5\u6709\u6700\u5927\u7684\u793e\u533a\uff0c\u8fd9\u4e0e\u4e00\u5e74\u540e\u53d1\u5e03\u7684 Ethers.js \u4e0d\u540c\u3002web3.js \u5e93\u662f\u6bd4\u4efb\u4f55\u5176\u4ed6\u5e93\u90fd\u591a\u7684\u9879\u76ee\u548c\u5305\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<p>\u7136\u800c\uff0cWeb3.js \u4e0d\u50cf Ethers.js \u90a3\u6837\u7ba1\u7406\u5bc6\u94a5\u3002\u94b1\u5305\u548c\u63d0\u4f9b\u5546\u6ca1\u6709\u5206\u5f00\uff0c\u800c\u662f\u5047\u8bbe\u672c\u5730\u8282\u70b9\u8fde\u63a5\u5230\u5904\u7406\u5bc6\u94a5\u5b58\u50a8\u3001\u4ea4\u6613\u7b7e\u540d\u548c\u68c0\u67e5\u533a\u5757\u94fe\u72b6\u6001\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<h3>web3.js \u7684\u4f18\u52bf<\/h3>\n<h4>\u652f\u6301Ethereum\u57fa\u91d1\u4f1a<\/h4>\n<p>Web3.js \u7531\u4ee5\u592a\u574a\u57fa\u91d1\u4f1a\u5f00\u53d1\u3002\u8fd9\u610f\u5473\u7740\u5b83\u6709\u8bb8\u591a\u5f00\u53d1\u4eba\u5458\u4e3a\u5b83\u505a\u51fa\u8d21\u732e\uff0c\u800c\u4e14\u5f53\u95ee\u9898\u51fa\u73b0\u65f6\u4f60\u80af\u5b9a\u6bd4\u5b83\u7684\u5bf9\u5e94\u7269 Ethers.js \u66f4\u5feb\u5730\u627e\u5230\u89e3\u51b3\u65b9\u6848\u662f\u6700\u7406\u60f3\u7684<\/p>\n<h4>\u53d7\u6b22\u8fce<\/h4>\n<p>\u6211\u4eec\u53ef\u4ee5\u7528 GitHub star \u7684\u6570\u91cf\u6765\u8861\u91cf\u5b83\u5728\u533a\u5757\u94fe\u5f00\u53d1\u8005\u4e2d\u7684\u53d7\u6b22\u8fce\u7a0b\u5ea6\u3002\u6839\u636e Github\uff0cweb3.js \u62e5\u6709\u8d85\u8fc7\u4e00\u4e07\u4e03\u5343 (17,000) \u9897\u661f\uff0c\u800c ethers.js \u62e5\u6709\u4e03\u5343 (7000) \u9897\u661f\u3002\u5b83\u7684\u6d41\u884c\u5f88\u5927\u7a0b\u5ea6\u4e0a\u662f\u56e0\u4e3a\u5148\u884c\u8005\u7684\u5f71\u54cd\uff0c\u8fd9\u4f7f\u5b83\u62e5\u6709\u66f4\u5927\u7684\u793e\u533a\u3002<\/p>\n<h3>Web3.js \u7684\u7f3a\u70b9<\/h3>\n<h4>\u5927\u5c0f<\/h4>\n<p>Web3.js \u6bd4 Ethers.js \u76f8\u5bf9\u66f4\u5927\uff0c\u8fd9\u4f7f\u5f97\u5728\u524d\u7aef\u4f7f\u7528\u5b83\u662f\u4e0d\u53ef\u53d6\u7684\uff0c\u56e0\u4e3a\u5b83\u4f1a\u964d\u4f4e dApps \u7684\u6027\u80fd\u3002<\/p>\n<h4>\u7075\u6d3b\u6027<\/h4>\n<p>\u7531\u4e8e ethers.js \u901a\u8fc7\u5173\u6ce8\u70b9\u5206\u79bb\u5904\u7406\u5bc6\u94a5\u7684\u65b9\u5f0f\uff0c\u5141\u8bb8\u5f00\u53d1\u4eba\u5458\u4ee5\u4e0d\u540c\u65b9\u5f0f\u5904\u7406\u5bc6\u94a5\u7684\u5b58\u50a8\u548c\u7ba1\u7406\uff0c\u56e0\u6b64 web3.js \u5728\u8fd9\u65b9\u9762\u5b58\u5728\u4e0d\u8db3\u3002<\/p>\n<h4>\u8bb8\u53ef\u8bc1<\/h4>\n<p>Web3.js \u5728\u66f4\u4e25\u683c\u7684\u8bb8\u53ef\u4e0b\u5de5\u4f5c\uff0c\u5982\u679c\u4e0d\u516c\u5f00\u53d1\u5e03\u5219\u4e0d\u5141\u8bb8\u4fee\u6539\u3002<\/p>\n<h3>Web3.js \u6a21\u5757<\/h3>\n<p>Web3.eth\uff1a-\u8be5\u6a21\u5757\u7528\u4e8e\u8fde\u63a5\u4ee5\u592a\u574a\u533a\u5757\u94fe\u548c\u667a\u80fd\u5408\u7ea6\u3002\u5b83\u8fd8\u5141\u8bb8\u60a8\u8ba2\u9605\u533a\u5757\u94fe\u4e0a\u7684\u4e8b\u4ef6\u3002<\/p>\n<p>Web3.net\uff1a-\u6b64\u6a21\u5757\u5141\u8bb8\u60a8\u4e0e\u7f51\u7edc\u8282\u70b9\u5c5e\u6027\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n<p>Web3.shh\uff1a-\u8be5\u6a21\u5757\u5141\u8bb8\u4e0e Whisper\uff08\u4e00\u79cd dApp \u7528\u4e8e\u76f8\u4e92\u901a\u4fe1\u7684\u901a\u4fe1\u6280\u672f\uff09\u534f\u8bae\u8fdb\u884c\u901a\u4fe1\u3002<\/p>\n<p>Web3.utils\uff1a-\u8be5\u6a21\u5757\u4e3a\u4ee5\u592a\u574a dApp \u548c\u5176\u4ed6 web3 \u5305\u63d0\u4f9b\u5b9e\u7528\u529f\u80fd\u3002<\/p>\n<p>Web3.bzz\uff1a-\u6b64\u6a21\u5757\u5141\u8bb8\u60a8\u4e0eSwarm \u7f51\u7edc\u8fdb\u884c\u4ea4\u4e92[4]<\/p>\n<h2>Web3.js \u548c Ethers.js \u7684\u6bd4\u8f83<\/h2>\n<p>\u5728\u672c\u6b21\u4f1a\u8bae\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u4ee5\u4e0b\u6807\u51c6\u6bd4\u8f83\u8fd9\u4e24\u4e2a\u5e93\uff1a<\/p>\n<ul>\n<li>\u5f00\u53d1\u8005\u4f53\u9a8c<\/li>\n<li>\u4eba\u6c14<\/li>\n<li>\u6587\u6863<\/li>\n<li>\u6613\u7528\u6027<\/li>\n<li>\u6027\u80fd<\/li>\n<li>\u7ef4\u62a4<\/li>\n<\/ul>\n<h3>\u5f00\u53d1\u8005\u4f53\u9a8c<\/h3>\n<p>\u8fd9\u4e24\u4e2a\u5e93\u90fd\u53ef\u4ee5\u7528\u51e0\u884c\u4ee3\u7801\u521b\u5efa\u771f\u6b63\u5f3a\u5927\u7684\u533a\u5757\u94fe\u5e94\u7528\u7a0b\u5e8f\uff0c\u4f46 ethers.js 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