{"id":94419,"date":"2026-08-14T12:32:59","date_gmt":"2026-08-14T04:32:59","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/94419.html"},"modified":"2026-08-14T12:32:59","modified_gmt":"2026-08-14T04:32:59","slug":"es6%e7%9f%a5%e8%af%86%e7%82%b91-%e8%87%aa%e5%a4%87%e4%bd%bf%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/94419.html","title":{"rendered":"es6\u77e5\u8bc6\u70b91-\u81ea\u5907\u4f7f\u7528"},"content":{"rendered":"

\u4e00\u3001ES6 \u5b9e\u6218\u8bed\u6cd5\u603b\u4f53\u5730\u56fe<\/h3>\n

\u5e73\u65f6\u5199 Vue \/ JavaScript，ES6 \u6700\u503c\u5f97\u638c\u63e1\u7684\u5927\u6982\u662f\u8fd9\u4e9b<\/p>\n

  • let\u3001const：\u53d8\u91cf\u58f0\u660e<\/li>\n
  • \u6a21\u677f\u5b57\u7b26\u4e32：${}<\/li>\n
  • \u89e3\u6784\u8d4b\u503c：\u5bf9\u8c61\u3001\u6570\u7ec4\u5feb\u901f\u53d6\u503c<\/li>\n
  • \u7bad\u5934\u51fd\u6570：() => {}<\/li>\n
  • \u5bf9\u8c61\u589e\u5f3a\u5199\u6cd5：\u5c5e\u6027\u7b80\u5199\u3001\u65b9\u6cd5\u7b80\u5199<\/li>\n
  • \u5c55\u5f00\u8fd0\u7b97\u7b26：…<\/li>\n
  • \u5269\u4f59\u53c2\u6570：…args<\/li>\n
  • \u51fd\u6570\u9ed8\u8ba4\u53c2\u6570<\/li>\n
  • \u6570\u7ec4\u5e38\u7528\u65b9\u6cd5：map \/ filter \/ find \/ some \/ every<\/li>\n
  • Promise<\/li>\n
  • async \/ await<\/li>\n
  • class<\/li>\n
  • \u6a21\u5757\u5316：import \/ export<\/li>\n
  • \u53ef\u9009\u94fe：?.<\/li>\n
  • \u7a7a\u503c\u5408\u5e76：??<\/li>\n
  • Set \/ Map<\/li>\n

    \u5176\u4e2d\u771f\u6b63\u65e5\u5e38\u4f7f\u7528\u9891\u7387\u7279\u522b\u9ad8\u7684\u662f：<\/p>\n

    1～11 + 13～15\u3002<\/p>\n

    \n

    1. let \u548c const<\/h2>\n

    \u8fd9\u662f ES6 \u6700\u57fa\u7840\u7684\u53d8\u5316\u3002<\/p>\n

    \u4ee5\u524d JavaScript \u7ecf\u5e38\u4f7f\u7528：<\/p>\n

    var<\/span> name =<\/span> '\u5f20\u4e09'<\/span><\/p>\n

    ES6 \u4ee5\u540e\u4e3b\u8981\u4f7f\u7528：<\/p>\n

    let<\/span> name =<\/span> '\u5f20\u4e09'<\/span><\/p>\n

    const<\/span> age =<\/span> 20<\/span><\/p>\n

    \u53ef\u4ee5\u5148\u7b80\u5355\u7406\u89e3：<\/p>\n

    let = \u8fd9\u4e2a\u53d8\u91cf\u4ee5\u540e\u8fd8\u53ef\u80fd\u91cd\u65b0\u8d4b\u503c
    \nconst = \u8fd9\u4e2a\u53d8\u91cf\u4ee5\u540e\u4e0d\u51c6\u5907\u91cd\u65b0\u8d4b\u503c<\/p>\n

    let<\/h4>\n

    \u4f8b\u5982\u5206\u9875：<\/p>\n

    let<\/span> pageNum =<\/span> 1<\/span><\/p>\n

    pageNum =<\/span> 2<\/span>
    \npageNum =<\/span> 3<\/span><\/p>\n

    \u8fd9\u662f\u6b63\u5e38\u7684\u3002<\/p>\n

    \u56e0\u4e3a pageNum \u540e\u9762\u4f1a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n

    \n

    const<\/h4>\n

    \u4f8b\u5982：<\/p>\n

    const<\/span> baseUrl =<\/span> '\/api'<\/span><\/p>\n

    baseUrl =<\/span> '\/test'<\/span><\/p>\n

    \u8fd9\u6837\u4f1a\u62a5\u9519\u3002<\/p>\n

    \u56e0\u4e3a const \u4e0d\u5141\u8bb8\u91cd\u65b0\u8d4b\u503c\u3002<\/p>\n

    \u6240\u4ee5\u5b9e\u9645\u9879\u76ee\u91cc，\u7ecf\u5e38\u4f1a\u770b\u5230：<\/p>\n

    const<\/span> response =<\/span> await<\/span> getUserInfo<\/span>(<\/span>)<\/span><\/p>\n

    const<\/span> data =<\/span> response.<\/span>data<\/p>\n

    const<\/span> userId =<\/span> data.<\/span>userId<\/p>\n

    \u8fd9\u4e9b\u53d8\u91cf\u62ff\u5230\u4ee5\u540e\u4e0d\u4f1a\u91cd\u65b0\u8d4b\u503c，\u6240\u4ee5\u7528 const\u3002<\/p>\n

    \n

    \u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u8bef\u533a<\/h4>\n

    \u5f88\u591a\u4eba\u4ee5\u4e3a：<\/p>\n

    const \u58f0\u660e\u7684\u5bf9\u8c61\u4e0d\u80fd\u4fee\u6539\u3002<\/p>\n

    \u8fd9\u662f\u9519\u7684\u3002<\/p>\n

    \u6bd4\u5982：<\/p>\n

    const<\/span> user =<\/span> {<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>,<\/span>
    \n age<\/span>:<\/span> 20<\/span>
    \n}<\/span><\/p>\n

    user.<\/span>age =<\/span> 21<\/span><\/p>\n

    console.<\/span>log<\/span>(<\/span>user)<\/span><\/p>\n

    \u7ed3\u679c：<\/p>\n

    {<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>,<\/span>
    \n age<\/span>:<\/span> 21<\/span>
    \n}<\/span><\/p>\n

    \u5b8c\u5168\u6ca1\u95ee\u9898\u3002<\/p>\n

    \u56e0\u4e3a const \u9650\u5236\u7684\u662f：<\/p>\n

    \u53d8\u91cf\u4e0d\u80fd\u6307\u5411\u53e6\u5916\u4e00\u4e2a\u5bf9\u8c61\u3002<\/p>\n

    \u4e0d\u80fd\u8fd9\u6837：<\/p>\n

    const<\/span> user =<\/span> {<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>
    \n}<\/span><\/p>\n

    user =<\/span> {<\/span>
    \n name<\/span>:<\/span> '\u674e\u56db'<\/span>
    \n}<\/span><\/p>\n

    \u8fd9\u624d\u4f1a\u62a5\u9519\u3002<\/p>\n

    \n

    \u5b9e\u6218\u5efa\u8bae<\/h4>\n

    JavaScript \u9879\u76ee\u91cc\u53ef\u4ee5\u9075\u5faa：<\/p>\n

    \u9ed8\u8ba4 const
    \n\u9700\u8981\u91cd\u65b0\u8d4b\u503c\u7684\u65f6\u5019\u624d let
    \n\u57fa\u672c\u4e0d\u8981 var<\/p>\n

    \u6bd4\u5982：<\/p>\n

    const<\/span> userId =<\/span> 1001<\/span>
    \nconst<\/span> userName =<\/span> '\u5f20\u4e09'<\/span><\/p>\n

    let<\/span> pageNum =<\/span> 1<\/span>
    \nlet<\/span> total =<\/span> 0<\/span><\/p>\n

    \n

    2. \u6a21\u677f\u5b57\u7b26\u4e32 ${}<\/h2>\n

    \u4ee5\u524d JavaScript \u62fc\u5b57\u7b26\u4e32\u5f88\u70e6：<\/p>\n

    const<\/span> name =<\/span> '\u5f20\u4e09'<\/span>
    \nconst<\/span> age =<\/span> 20<\/span><\/p>\n

    const<\/span> text =<\/span> '\u59d3\u540d：'<\/span> +<\/span> name +<\/span> '，\u5e74\u9f84：'<\/span> +<\/span> age<\/p>\n

    ES6 \u53ef\u4ee5\u76f4\u63a5：<\/p>\n

    const<\/span> name =<\/span> '\u5f20\u4e09'<\/span>
    \nconst<\/span> age =<\/span> 20<\/span><\/p>\n

    const<\/span> text =<\/span> `<\/span>\u59d3\u540d：<\/span>${<\/span>name}<\/span><\/span>，\u5e74\u9f84：<\/span>${<\/span>age}<\/span><\/span>`<\/span><\/span><\/p>\n

    \u6ce8\u610f\u8fd9\u91cc\u4e0d\u662f\u666e\u901a\u5355\u5f15\u53f7：<\/p>\n

    ''<\/span><\/p>\n

    \u800c\u662f\u53cd\u5f15\u53f7：<\/p>\n

    `<\/span>`<\/span><\/span><\/p>\n

    \n

    ${} \u91cc\u9762\u53ef\u4ee5\u76f4\u63a5\u5199\u8868\u8fbe\u5f0f<\/h4>\n

    const<\/span> price =<\/span> 100<\/span>
    \nconst<\/span> count =<\/span> 3<\/span><\/p>\n

    console.<\/span>log<\/span>(<\/span>`<\/span>\u603b\u91d1\u989d：<\/span>${<\/span>price *<\/span> count}<\/span><\/span>`<\/span><\/span>)<\/span><\/p>\n

    \u8f93\u51fa：<\/p>\n

    \u603b\u91d1\u989d：300<\/p>\n

    \u4e5f\u53ef\u4ee5：<\/p>\n

    const<\/span> user =<\/span> {<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>,<\/span>
    \n age<\/span>:<\/span> 20<\/span>
    \n}<\/span><\/p>\n

    console.<\/span>log<\/span>(<\/span>`<\/span>\u7528\u6237：<\/span>${<\/span>user.<\/span>name}<\/span><\/span>，\u660e\u5e74<\/span>${<\/span>user.<\/span>age +<\/span> 1<\/span>}<\/span><\/span>\u5c81<\/span>`<\/span><\/span>)<\/span><\/p>\n

    \n

    \u5b9e\u6218\u573a\u666f 1：\u62fc URL<\/h4>\n

    \u4ee5\u524d：<\/p>\n

    const<\/span> url =<\/span> '\/user\/detail?id='<\/span> +<\/span> userId<\/p>\n

    \u73b0\u5728：<\/p>\n

    const<\/span> url =<\/span> `<\/span>\/user\/detail?id=<\/span>${<\/span>userId}<\/span><\/span>`<\/span><\/span><\/p>\n

    \u5728 Vue \u91cc\u9762\u7ecf\u5e38\u4f1a\u9047\u5230：<\/p>\n

    export<\/span> function<\/span> getOrder<\/span>(<\/span>orderId<\/span>)<\/span> {<\/span>
    \n return<\/span> request<\/span>(<\/span>{<\/span>
    \n url<\/span>:<\/span> `<\/span>\/xxx\/order\/<\/span>${<\/span>orderId}<\/span><\/span>`<\/span><\/span>,<\/span>
    \n method<\/span>:<\/span> 'get'<\/span>
    \n }<\/span>)<\/span>
    \n}<\/span><\/p>\n

    \u8fd9\u91cc：<\/p>\n

    `<\/span>\/xxx\/order\/<\/span>${<\/span>orderId}<\/span><\/span>`<\/span><\/span><\/p>\n

    \u5047\u8bbe：<\/p>\n

    orderId =<\/span> 100<\/span><\/p>\n

    \u6700\u7ec8\u5c31\u662f：<\/p>\n

    \/repair\/order\/100<\/p>\n

    \n

    \u5b9e\u6218\u573a\u666f 2：\u63d0\u793a\u4fe1\u606f<\/h4>\n

    const<\/span> orderNo =<\/span> 'WX140001'<\/span><\/p>\n

    this<\/span>.<\/span>$message.<\/span>success<\/span>(<\/span>`<\/span>xxxx <\/span>${<\/span>orderNo}<\/span><\/span> \u521b\u5efa\u6210\u529f<\/span>`<\/span><\/span>)<\/span><\/p>\n

    \u6bd4：<\/p>\n

    this<\/span>.<\/span>$message.<\/span>success<\/span>(<\/span>'xxx '<\/span> +<\/span> orderNo +<\/span> ' \u521b\u5efa\u6210\u529f'<\/span>)<\/span><\/p>\n

    \u6e05\u695a\u5f88\u591a\u3002<\/p>\n

    \n

    3. \u89e3\u6784\u8d4b\u503c<\/h2>\n

    \u8fd9\u4e2a\u975e\u5e38\u91cd\u8981\u3002<\/p>\n

    Vue\u3001Axios\u3001\u524d\u7aef\u9879\u76ee\u91cc\u5230\u5904\u90fd\u662f\u3002<\/p>\n

    \u5047\u8bbe\u540e\u7aef\u8fd4\u56de：<\/p>\n

    const<\/span> user =<\/span> {<\/span>
    \n id<\/span>:<\/span> 1001<\/span>,<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>,<\/span>
    \n age<\/span>:<\/span> 25<\/span>
    \n}<\/span><\/p>\n

    \u4ee5\u524d\u53d6\u6570\u636e：<\/p>\n

    const<\/span> id =<\/span> user.<\/span>id
    \nconst<\/span> name =<\/span> user.<\/span>name
    \nconst<\/span> age =<\/span> user.<\/span>age<\/p>\n

    ES6 \u53ef\u4ee5\u5199：<\/p>\n

    const<\/span> {<\/span> id,<\/span> name,<\/span> age }<\/span> =<\/span> user<\/p>\n

    \u8fd9\u53eb：<\/p>\n

    \u5bf9\u8c61\u89e3\u6784\u3002<\/p>\n

    \u76f8\u5f53\u4e8e\u81ea\u52a8\u6267\u884c：<\/p>\n

    const<\/span> id =<\/span> user.<\/span>id
    \nconst<\/span> name =<\/span> user.<\/span>name
    \nconst<\/span> age =<\/span> user.<\/span>age<\/p>\n

    \n

    \u5b9e\u6218\u4f8b\u5b50<\/h4>\n

    Axios \u8fd4\u56de：<\/p>\n

    const<\/span> response =<\/span> {<\/span>
    \n code<\/span>:<\/span> 200<\/span>,<\/span>
    \n msg<\/span>:<\/span> 'success'<\/span>,<\/span>
    \n data<\/span>:<\/span> {<\/span>
    \n id<\/span>:<\/span> 1001<\/span>,<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    \u53ef\u4ee5：<\/p>\n

    const<\/span> {<\/span> code,<\/span> msg,<\/span> data }<\/span> =<\/span> response<\/p>\n

    console.<\/span>log<\/span>(<\/span>code)<\/span>
    \nconsole.<\/span>log<\/span>(<\/span>msg)<\/span>
    \nconsole.<\/span>log<\/span>(<\/span>data)<\/span><\/p>\n

    \u751a\u81f3\u7ee7\u7eed\u89e3\u6784：<\/p>\n

    const<\/span> {<\/span> id,<\/span> name }<\/span> =<\/span> response.<\/span>data<\/p>\n

    console.<\/span>log<\/span>(<\/span>id)<\/span>
    \nconsole.<\/span>log<\/span>(<\/span>name)<\/span><\/p>\n

    \n

    \u4fee\u6539\u53d8\u91cf\u540d\u79f0<\/h4>\n

    \u6bd4\u5982\u540e\u7aef\u8fd4\u56de：<\/p>\n

    const<\/span> user =<\/span> {<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>
    \n}<\/span><\/p>\n

    \u4f60\u4e0d\u60f3\u53eb name，\u53ef\u4ee5：<\/p>\n

    const<\/span> {<\/span> name<\/span>:<\/span> userName }<\/span> =<\/span> user<\/p>\n

    console.<\/span>log<\/span>(<\/span>userName)<\/span><\/p>\n

    \u6ce8\u610f：<\/p>\n

    name<\/span>:<\/span> userName<\/p>\n

    \u610f\u601d\u4e0d\u662f：<\/p>\n

    \u628a userName \u7ed9 name<\/p>\n

    \u800c\u662f：<\/p>\n

    \u53d6\u51fa user.name
    \n\u7136\u540e\u4fdd\u5b58\u5230\u53d8\u91cf userName<\/p>\n

    \u8fd9\u4e2a\u7b2c\u4e00\u6b21\u770b\u975e\u5e38\u5bb9\u6613\u53cd\u3002<\/p>\n

    \n

    \u8bbe\u7f6e\u9ed8\u8ba4\u503c<\/h4>\n

    \u6bd4\u5982：<\/p>\n

    const<\/span> user =<\/span> {<\/span>
    \n name<\/span>:<\/span> '\u5f20\u4e09'<\/span>
    \n}<\/span><\/p>\n

    const<\/span> {<\/span> name,<\/span> age =<\/span> 18<\/span> }<\/span> =<\/span> user<\/p>\n

    \u56e0\u4e3a\u6ca1\u6709 age：<\/p>\n

    console.<\/span>log<\/span>(<\/span>age)<\/span><\/p>\n

    \u7ed3\u679c：<\/p>\n

    18<\/p>\n

    \u5b9e\u9645\u9879\u76ee\u91cc\u5f88\u6709\u7528：<\/p>\n

    const<\/span> {<\/span>
    \n pageNum =<\/span> 1<\/span>,<\/span>
    \n pageSize =<\/span> 10<\/span>
    \n}<\/span> =<\/span> params<\/p>\n

    \n

    \u6570\u7ec4\u4e5f\u53ef\u4ee5\u89e3\u6784<\/h4>\n

    \u4f8b\u5982：<\/p>\n

    const<\/span> arr =<\/span> [<\/span>'Java'<\/span>,<\/span> 'Vue'<\/span>,<\/span> 'MySQL'<\/span>]<\/span><\/p>\n

    const<\/span> [<\/span>a,<\/span> b,<\/span> c]<\/span> =<\/span> arr<\/p>\n

    console.<\/span>log<\/span>(<\/span>a)<\/span> \/\/ Java<\/span>
    \nconsole.<\/span>log<\/span>(<\/span>b)<\/span> \/\/ Vue<\/span>
    \nconsole.<\/span>log<\/span>(<\/span>c)<\/span> \/\/ MySQL<\/span><\/p>\n

    \u5b9e\u9645\u66f4\u5e38\u89c1\u7684\u662f：<\/p>\n

    const<\/span> [<\/span>first,<\/span> second]<\/span> =<\/span> arr<\/p>\n

    \n

    \u4f8b\u5982\u6709\u4e00\u6bb5：<\/h3>\n

    const<\/span> response =<\/span> await<\/span> getUserInfo<\/span>(<\/span>)<\/span><\/p>\n

    const<\/span> {<\/span> id,<\/span> name,<\/span> age }<\/span> =<\/span> response.<\/span>data<\/p>\n

    const<\/span> message =<\/span> `<\/span>\u7528\u6237 <\/span>${<\/span>name}<\/span><\/span>，ID=<\/span>${<\/span>id}<\/span><\/span>，\u5e74\u9f84=<\/span>${<\/span>age}<\/span><\/span>`<\/span><\/span><\/p>\n

    console.<\/span>log<\/span>(<\/span>message)<\/span><\/p>\n

    \u8fd9\u91cc\u5176\u5b9e\u8fde\u7eed\u7528\u4e86\u4e09\u4e2a ES6 \u77e5\u8bc6：<\/p>\n

    \u2460 const
    \n \u2193
    \nconst response = …<\/p>\n

    \u2461 \u89e3\u6784\u8d4b\u503c
    \n \u2193
    \nconst { id, name, age } = response.data<\/p>\n

    \u2462 \u6a21\u677f\u5b57\u7b26\u4e32
    \n \u2193
    \n`\u7528\u6237 ${name}，ID=${id}`<\/p>\n

    \u4f60\u53ef\u4ee5\u5148\u628a\u8fd9\u4e00\u9636\u6bb5\u8bb0\u6210：<\/p>\n

    1. let \/ const
    \n \u7ba1\u53d8\u91cf<\/p>\n

    2. \u6a21\u677f\u5b57\u7b26\u4e32
    \n \u7ba1\u5b57\u7b26\u4e32\u62fc\u63a5<\/p>\n

    3. \u89e3\u6784\u8d4b\u503c
    \n \u7ba1\u5bf9\u8c61\/\u6570\u7ec4\u53d6\u503c<\/p>\n

    \u8fd9\u4e09\u4e2a\u90fd\u5c5e\u4e8e\u770b ES6 \u4ee3\u7801\u4e4b\u524d\u5fc5\u987b\u719f\u6089\u7684\u57fa\u7840\u8bed\u6cd5\u3002<\/p>\n

    \u8fd9\u4e09\u4e2a\u5f00\u59cb\u5c31\u4f1a\u5927\u91cf\u5bf9\u5e94\u4f60\u73b0\u5728 Vue \/ Axios \u9879\u76ee\u91cc\u7684\u771f\u5b9e\u4ee3\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u4e00\u3001ES6 \u5b9e\u6218\u8bed\u6cd5\u603b\u4f53\u5730\u56fe
    \n\u5e73\u65f6\u5199 Vue \/ JavaScript，ES6 \u6700\u503c\u5f97\u638c\u63e1\u7684\u5927\u6982\u662f\u8fd9\u4e9b
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