{"id":166317,"date":"2024-05-08T15:34:15","date_gmt":"2024-05-08T07:34:15","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/166317.html"},"modified":"2024-05-08T15:34:23","modified_gmt":"2024-05-08T07:34:23","slug":"javascript%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0%e5%83%8f%e5%85%b6%e4%bb%96%e8%af%ad%e8%a8%80%e4%b8%80%e6%a0%b7%ef%bc%8c%e4%b8%80%e4%b8%aa%e7%b1%bb%e4%b8%80%e4%b8%aa%e6%96%87%e4%bb%b6%ef%bc%8c%e6%9c%89","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/166317.html","title":{"rendered":"javascript\u600e\u4e48\u5b9e\u73b0\u50cf\u5176\u4ed6\u8bed\u8a00\u4e00\u6837\uff0c\u4e00\u4e2a\u7c7b\u4e00\u4e2a\u6587\u4ef6\uff0c\u6709\u4ec0\u4e48\u65b9\u6cd5"},"content":{"rendered":"

\"javascript\u600e\u4e48\u5b9e\u73b0\u50cf\u5176\u4ed6\u8bed\u8a00\u4e00\u6837\uff0c\u4e00\u4e2a\u7c7b\u4e00\u4e2a\u6587\u4ef6\uff0c\u6709\u4ec0\u4e48\u65b9\u6cd5\"<\/p>\n

JavaScript\u901a\u8fc7\u6a21\u5757\u5316\u53ef\u4ee5\u5b9e\u73b0\u50cf\u5176\u4ed6\u8bed\u8a00\u4e00\u6837\u6bcf\u4e2a\u7c7b\u5b9a\u4e49\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\u3002\u6a21\u5757\u5316\u5141\u8bb8\u5f00\u53d1\u8005\u5c06\u4ee3\u7801\u62c6\u5206\u6210\u53ef\u91cd\u7528\u7684\u5355\u5143\u3001\u652f\u6301\u7ef4\u62a4\u6027<\/strong>\u3001\u6613\u4e8e\u7ba1\u7406<\/strong>\u7684\u4ee3\u7801\u3002\u5728ES6\uff08ECMAScript 2015\uff09\u4e2d\u5f15\u5165\u4e86\u672c\u5730\u6a21\u5757\u5316\u7684\u6807\u51c6\uff0c\u4e3b\u8981\u9760import<\/code>\u548cexport<\/code>\u8bed\u53e5\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u8981\u6bcf\u4e2a\u7c7b\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\uff0c\u4f60\u53ef\u4ee5\u5c06\u6bcf\u4e2a\u7c7b\u5b9a\u4e49\u5728\u5404\u81ea\u7684\u6587\u4ef6\u4e2d\uff0c\u5e76\u4f7f\u7528export<\/code>\u5173\u952e\u5b57\u6765\u5bfc\u51fa\u5b83\u4eec\u3002\u7136\u540e\u5728\u9700\u8981\u4f7f\u7528\u8fd9\u4e9b\u7c7b\u7684\u6587\u4ef6\u4e2d\u4f7f\u7528import<\/code>\u5173\u952e\u5b57\u6765\u5bfc\u5165\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u540d\u4e3aUser<\/code>\u7684\u7c7b\uff0c\u53ef\u4ee5\u5355\u72ec\u521b\u5efa\u4e00\u4e2aUser.js\u7684\u6587\u4ef6\uff0c\u5728\u8be5\u6587\u4ef6\u4e2d\u5b9a\u4e49\u5e76\u5bfc\u51fa\u8fd9\u4e2a\u7c7b\u3002\u5f53\u9700\u8981\u4f7f\u7528User\u7c7b\u65f6\uff0c\u53ef\u4ee5\u5728\u53e6\u4e00\u4e2a\u6587\u4ef6\u4e2d\u5bfc\u5165User.js\u3002<\/p>\n<\/p>\n

\u8be5\u65b9\u6cd5\u4e0d\u4ec5\u4fc3\u8fdb\u4e86\u4ee3\u7801\u7684\u7ec4\u7ec7\u6027\uff0c\u800c\u4e14\u63d0\u9ad8\u4e86\u53ef\u6d4b\u8bd5\u6027\u3001\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd9\u5bf9\u4e8e\u5927\u578b\u9879\u76ee\u5c24\u5176\u91cd\u8981\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u6a21\u5757\u5316\u6982\u5ff5\u53ca\u8bed\u6cd5<\/strong><\/p>\n<\/p>\n

\u6a21\u5757\u5316\u5728JavaScript\u4e2d\u7684\u57fa\u672c\u8bed\u6cd5\u662f\u4f7f\u7528import<\/code>\u548cexport<\/code>\u5173\u952e\u5b57\u3002\u4e00\u4e2a\u6587\u4ef6\u6216\u6a21\u5757\u53ef\u4ee5\u5bfc\u51fa\u4e00\u4e2a\u6216\u591a\u4e2a\u53d8\u91cf\u3001\u51fd\u6570\u3001\u7c7b\u6216\u8868\u8fbe\u5f0f\uff0c\u800c\u5176\u4ed6\u6587\u4ef6\u5219\u53ef\u4ee5\u5bfc\u5165\u8fd9\u4e9b\u5bfc\u51fa\u6765\u4f7f\u7528\u3002<\/p>\n<\/p>\n

\u5b9a\u4e49\u5e76\u5bfc\u51fa\u7c7b<\/strong>\uff1a<\/p>\n<\/p>\n

\/\/ User.js<\/p>\n
export default class User {<\/p>\n
  constructor(name) {<\/p>\n
    this.name = name;<\/p>\n
  }<\/p>\n
  \/\/ ...<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5bfc\u5165\u7c7b<\/strong>\uff1a<\/p>\n<\/p>\n
\/\/ mAI<\/a>n.js<\/p>\n
import User from '.\/User.js';<\/p>\n
const user = new User('Alice');<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u521b\u5efa\u72ec\u7acb\u7684\u7c7b\u6587\u4ef6<\/strong><\/p>\n<\/p>\n
\u5728JavaScript\u4e2d\u521b\u5efa\u7c7b\u6587\u4ef6\u6d89\u53ca\u5230\u6587\u4ef6\u7684\u7ec4\u7ec7\u548c\u7ed3\u6784\u8bbe\u8ba1\u3002\u8fd9\u91cc\u6709\u4e00\u4e9b\u901a\u7528\u7684\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n
    \n
  • \u786e\u5b9a\u7c7b\u7684\u804c\u8d23\u548c\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/li>\n
  • \u4e3a\u6bcf\u4e2a\u7c7b\u521b\u5efa\u4e00\u4e2a\u72ec\u7acb\u7684\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u901a\u5e38\u4e0e\u7c7b\u540d\u76f8\u5339\u914d\u3002<\/li>\n
  • \u5728\u6587\u4ef6\u5185\u5b9a\u4e49\u7c7b\u5e76\u4f7f\u7528export<\/code>\u5bfc\u51fa\u7c7b\u3002<\/li>\n<\/ul>\n
    User\u7c7b\u793a\u4f8b<\/strong>\uff1a<\/p>\n<\/p>\n
    \/\/ User.js<\/p>\n
    export default class User {<\/p>\n
      constructor(name) {<\/p>\n
        this.name = name;<\/p>\n
      }<\/p>\n
      sayHello() {<\/p>\n
        console.log(`Hello, my name is ${this.name}!`);<\/p>\n
      }<\/p>\n
    }<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u4e09\u3001\u4f7f\u7528\u6a21\u5757\u5bfc\u5165\u5bfc\u51fa\u7ec4\u7ec7\u9879\u76ee<\/strong><\/p>\n<\/p>\n
    \u4e00\u4e2a\u597d\u7684\u9879\u76ee\u7ed3\u6784\u80fd\u591f\u786e\u4fdd\u4ee3\u7801\u6e05\u6670\u4e14\u6613\u4e8e\u7ef4\u62a4\u3002\u901a\u5e38\u6765\u8bf4\uff0c\u9879\u76ee\u4f1a\u6709\u4e00\u4e2a\u5165\u53e3\u6587\u4ef6\uff0c\u6bd4\u5982index.js<\/code>\uff0c\u5b83\u4f1a\u5bfc\u5165\u5176\u4ed6\u6a21\u5757\u6765\u6267\u884c\u7a0b\u5e8f\u3002\u6a21\u5757\u5316\u8fd8\u53ef\u4ee5\u5e26\u6765\u66f4\u597d\u7684\u534f\u4f5c\u4f53\u9a8c\uff0c\u56e0\u4e3a\u4e0d\u540c\u7684\u5f00\u53d1\u8005\u53ef\u4ee5\u72ec\u7acb\u5de5\u4f5c\u4e8e\u4e0d\u540c\u7684\u6a21\u5757\u3002<\/p>\n<\/p>\n
    \u5165\u53e3\u6587\u4ef6\u793a\u4f8b<\/strong>\uff1a<\/p>\n<\/p>\n
    \/\/ index.js<\/p>\n
    import User from '.\/User.js';<\/p>\n
    import Admin from '.\/Admin.js';<\/p>\n
    const user = new User('Alice');<\/p>\n
    const admin = new Admin('Bob');<\/p>\n
    user.sayHello();<\/p>\n
    admin.sayHello();<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u56db\u3001\u6a21\u5757\u5316\u7684\u597d\u5904<\/strong><\/p>\n<\/p>\n
    \u6a21\u5757\u5316\u7684\u4e3b\u8981\u597d\u5904\u5305\u62ec\uff1a\u4ee3\u7801\u7684\u91cd\u7528\u6027<\/strong>\u3001\u547d\u540d\u7a7a\u95f4\u7684\u6e05\u6670<\/strong>\u3001\u4f9d\u8d56\u7ba1\u7406<\/strong>\u3002\u8fd9\u4e9b\u597d\u5904\u63d0\u5347\u4e86\u4ee3\u7801\u8d28\u91cf\u5e76\u4f7f\u5f97\u7ef4\u62a4\u66f4\u52a0\u7b80\u5355\u3002<\/p>\n<\/p>\n
      \n
    • \u91cd\u7528\u6027<\/strong>\uff1a\u901a\u8fc7\u5c06\u529f\u80fd\u62c6\u5206\u5230\u72ec\u7acb\u7684\u6a21\u5757\u4e2d\uff0c\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u9879\u76ee\u4e2d\u91cd\u7528\u5b83\u4eec\u3002<\/li>\n
    • \u547d\u540d\u7a7a\u95f4<\/strong>\uff1a\u6a21\u5757\u63d0\u4f9b\u4e86\u547d\u540d\u7a7a\u95f4\uff0c\u9632\u6b62\u5168\u5c40\u4f5c\u7528\u57df\u6c61\u67d3\u3002<\/li>\n
    • \u4f9d\u8d56\u7ba1\u7406<\/strong>\uff1a\u53ef\u4ee5\u660e\u786e\u5730\u58f0\u660e\u4e00\u4e2a\u6a21\u5757\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u4f7f\u4f9d\u8d56\u5173\u7cfb\u7ba1\u7406\u66f4\u52a0\u900f\u660e\u3002<\/li>\n<\/ul>\n
      \u4e94\u3001\u7ed3\u5408\u73b0\u4ee3\u6784\u5efa\u5de5\u5177\u4f7f\u7528\u6a21\u5757\u5316<\/strong><\/p>\n<\/p>\n
      \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u901a\u5e38\u4f1a\u642d\u914d\u6784\u5efa\u5de5\u5177\uff08\u5982Webpack\u3001Rollup\u6216Parcel\uff09\u4f7f\u7528\u6a21\u5757\u5316\u3002\u6784\u5efa\u5de5\u5177\u53ef\u4ee5\u5e2e\u52a9\u5904\u7406\u6a21\u5757\u7684\u6253\u5305\u3001\u538b\u7f29\u3001\u8f6c\u8bd1\uff08\u5982\u4f7f\u7528Babel\u8f6c\u6362ES6\u4ee3\u7801\u5230ES5\uff09\u7b49\u5de5\u4f5c\u3002<\/p>\n<\/p>\n
      \u6784\u5efa\u5de5\u5177\u793a\u4f8b<\/strong>\uff1a<\/p>\n<\/p>\n
      \/\/ webpack.config.js<\/p>\n
      module.exports = {<\/p>\n
        entry: '.\/index.js',<\/p>\n
        output: {<\/p>\n
          filename: 'bundle.js'<\/p>\n
        },<\/p>\n
        \/\/ ...<\/p>\n
      };<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u901a\u8fc7\u5206\u5272\u4ee3\u7801\u5230\u4e0d\u540c\u7684\u6587\u4ef6\u548c\u4f7f\u7528\u6a21\u5757\u7cfb\u7edf\uff0cJavaScript\u9879\u76ee\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u53ef\u8bfb\u6027\u5927\u5927\u63d0\u5347\u3002\u6b64\u5916\uff0c\u73b0\u4ee3JavaScript\u5f00\u53d1\u4e2d\uff0c\u6a21\u5757\u5316\u5df2\u7ecf\u6210\u4e3a\u4e00\u79cd\u6700\u4f73\u5b9e\u8df5\uff0c\u4e3a\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u4ee3\u7801\u7ec4\u7ec7\u548c\u7ba1\u7406\u80fd\u529b\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
      \u95ee\u98981\uff1aJavaScript\u5982\u4f55\u5b9e\u73b0\u7c7b\u4f3c\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684\u6bcf\u4e2a\u7c7b\u4e00\u4e2a\u6587\u4ef6\u7684\u65b9\u5f0f\uff1f<\/strong><\/p>\n
      \u56de\u7b54\uff1aJavaScript\u662f\u4e00\u79cd\u7075\u6d3b\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u4e0d\u50cf\u5176\u4ed6\u4e00\u4e9b\u7f16\u7a0b\u8bed\u8a00\u6709\u4e25\u683c\u7684\u6587\u4ef6\u7ec4\u7ec7\u7ed3\u6784\u3002\u7136\u800c\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u65b9\u6cd5\u6765\u6a21\u62df\u6bcf\u4e2a\u7c7b\u4e00\u4e2a\u6587\u4ef6\u7684\u6548\u679c\u3002<\/p>\n
      \u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u6a21\u5757\u5316\u7684\u5f00\u53d1\u65b9\u5f0f\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6a21\u5757\u52a0\u8f7d\u5668\uff08\u5982RequireJS\uff09\u6216\u8005\u6a21\u5757\u6253\u5305\u5de5\u5177\uff08\u5982Webpack\uff09\u6765\u5c06\u6bcf\u4e2a\u7c7b\u653e\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\uff0c\u7136\u540e\u901a\u8fc7\u5bfc\u5165\u548c\u5bfc\u51fa\u529f\u80fd\u5c06\u5b83\u4eec\u7ec4\u5408\u5728\u4e00\u8d77\u3002\u8fd9\u6837\u53ef\u4ee5\u66f4\u597d\u5730\u7ec4\u7ec7\u4ee3\u7801\uff0c\u4f7f\u5176\u66f4\u6613\u4e8e\u7ef4\u62a4\u548c\u6269\u5c55\u3002<\/p>\n
      \u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u601d\u60f3\u6765\u7ec4\u7ec7\u4ee3\u7801\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u6784\u9020\u51fd\u6570\u6765\u5b9a\u4e49\u7c7b\uff0c\u5e76\u4f7f\u7528\u539f\u578b\u94fe\u6765\u6dfb\u52a0\u65b9\u6cd5\u548c\u5c5e\u6027\u3002\u867d\u7136\u8fd9\u79cd\u65b9\u5f0f\u5e76\u4e0d\u80fd\u50cf\u5176\u4ed6\u8bed\u8a00\u4e00\u6837\u5c06\u6bcf\u4e2a\u7c7b\u653e\u5728\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\uff0c\u4f46\u662f\u901a\u8fc7\u5408\u7406\u5730\u5212\u5206\u4ee3\u7801\u5757\u548c\u6587\u4ef6\u5939\uff0c\u6211\u4eec\u4ecd\u7136\u53ef\u4ee5\u5b9e\u73b0\u76f8\u5bf9\u6e05\u6670\u7684\u4ee3\u7801\u7ed3\u6784\u3002<\/p>\n
      \u95ee\u98982\uff1a\u6709\u54ea\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u4f7fJavaScript\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\u548c\u6613\u4e8e\u7ef4\u62a4\uff1f<\/strong><\/p>\n
      \u56de\u7b54\uff1aJavaScript\u662f\u4e00\u79cd\u975e\u5e38\u7075\u6d3b\u7684\u8bed\u8a00\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u4f7f\u4ee3\u7801\u66f4\u6a21\u5757\u5316\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n
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