{"id":157685,"date":"2024-05-08T12:35:46","date_gmt":"2024-05-08T04:35:46","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/157685.html"},"modified":"2024-05-08T12:35:51","modified_gmt":"2024-05-08T04:35:51","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e7%bd%91%e9%a1%b5%e4%b8%ad%e5%b5%8c%e5%85%a5%e5%8e%9f%e7%94%9f-javascript-%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/157685.html","title":{"rendered":"\u5982\u4f55\u5728\u7f51\u9875\u4e2d\u5d4c\u5165\u539f\u751f JavaScript \u4ee3\u7801"},"content":{"rendered":"

\"\u5982\u4f55\u5728\u7f51\u9875\u4e2d\u5d4c\u5165\u539f\u751f<\/p>\n

\u5728\u7f51\u9875\u4e2d\u5d4c\u5165\u539f\u751f JavaScript \u4ee3\u7801<\/strong>\uff0c\u7b80\u5355\u6765\u8bf4\u901a\u5e38\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\u901a\u8fc7<script><\/code>\u6807\u7b7e\u76f4\u63a5\u5728HTML\u6587\u6863\u4e2d\u7f16\u5199JavaScript\u4ee3\u7801<\/strong>\u3001\u6216\u8005\u901a\u8fc7\u94fe\u63a5\u5916\u90e8JavaScript\u6587\u4ef6<\/strong>\u3002\u5176\u4e2d\uff0c\u76f4\u63a5\u7f16\u5199\u65b9\u5f0f\u9002\u5408\u8f83\u5c11\u7684\u4ee3\u7801\u6216\u8005\u5feb\u901f\u6d4b\u8bd5\uff0c\u800c\u94fe\u63a5\u5916\u90e8\u6587\u4ef6\u5219\u65b9\u4fbf\u7ba1\u7406\u548c\u7ef4\u62a4\uff0c\u9002\u7528\u4e8e\u8f83\u5927\u89c4\u6a21\u7684\u9879\u76ee\u3002\u5728\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5c06<script><\/code>\u6807\u7b7e\u653e\u7f6e\u5728HTML\u7684<head><\/code>\u6216<body><\/code>\u4e2d\uff0c\u4f46\u4e3a\u4e86\u7f51\u9875\u6027\u80fd\u4f18\u5316\uff0c\u901a\u5e38\u63a8\u8350\u5c06\u811a\u672c\u653e\u5728\u6587\u6863\u7684\u5e95\u90e8\uff0c\u5373<body><\/code>\u6807\u7b7e\u95ed\u5408\u4e4b\u524d\uff0c\u8fd9\u6837\u53ef\u4ee5\u9632\u6b62\u963b\u585e\u9875\u9762\u7684\u6e32\u67d3\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u76f4\u63a5\u5728HTML\u4e2d\u7f16\u5199JavaScript<\/h3>\n<\/p>\n

\u5f53\u9700\u8981\u6267\u884c\u7684JavaScript\u811a\u672c\u8f83\u77ed\u65f6\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728HTML\u6587\u6863\u4e2d\u7684<script><\/code>\u6807\u7b7e\u5185\u90e8\u7f16\u5199\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

<!DOCTYPE html><\/p>\n
<html><\/p>\n
<head><\/p>\n
    <title>Embedding JavaScript<\/title><\/p>\n
<\/head><\/p>\n
<body><\/p>\n
    <!-- \u9875\u9762\u5185\u5bb9 --><\/p>\n
    <script><\/p>\n
        \/\/ JavaScript\u4ee3\u7801<\/p>\n
        function sayHello() {<\/p>\n
            alert('Hello, World!');<\/p>\n
        }<\/p>\n
        sayHello();<\/p>\n
    <\/script><\/p>\n
<\/body><\/p>\n
<\/html><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u5f0f\u7684\u4f18\u70b9\u662f\u5feb\u901f\u5e76\u5bb9\u6613\u8fdb\u884c\u5c0f\u8303\u56f4\u7684\u6d4b\u8bd5\u3002\u7136\u800c\uff0c\u5f53\u811a\u672c\u8f83\u957f\u65f6\uff0c\u5c06\u5176\u76f4\u63a5\u5d4c\u5165HTML\u6587\u6863\u4f1a\u4f7fHTML\u4ee3\u7801\u663e\u5f97\u81c3\u80bf\u4e14\u96be\u4ee5\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u94fe\u63a5\u5916\u90e8JavaScript\u6587\u4ef6<\/h3>\n<\/p>\n
\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u9879\u76ee\u6216\u66f4\u957f\u7684\u811a\u672c\uff0c\u5c06JavaScript\u4ee3\u7801\u653e\u7f6e\u5728\u5916\u90e8\u6587\u4ef6\u4e2d\u662f\u66f4\u52a0\u63a8\u8350\u7684\u505a\u6cd5\u3002\u8fd9\u6837\u4e0d\u4ec5\u53ef\u4ee5\u4fdd\u6301HTML\u6587\u6863\u7684\u6e05\u6670\uff0c\u8fd8\u53ef\u4ee5\u5229\u7528\u6d4f\u89c8\u5668\u7684\u7f13\u5b58\u673a\u5236\u63d0\u9ad8\u9875\u9762\u52a0\u8f7d\u6548\u7387\u3002\u5916\u90e8JavaScript\u6587\u4ef6\u901a\u5e38\u4f7f\u7528.js\u6269\u5c55\u540d\uff0c\u5e76\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u94fe\u63a5\uff1a<\/p>\n<\/p>\n
<!DOCTYPE html><\/p>\n
<html><\/p>\n
<head><\/p>\n
    <title>External JavaScript<\/title><\/p>\n
    <!-- \u5916\u90e8JavaScript\u6587\u4ef6\u94fe\u63a5 --><\/p>\n
    <script src="path\/to\/your-script.js"><\/script><\/p>\n
<\/head><\/p>\n
<body><\/p>\n
    <!-- \u9875\u9762\u5185\u5bb9 --><\/p>\n
<\/body><\/p>\n
<\/html><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u79cd\u505a\u6cd5\u4e2d\uff0c\u5fc5\u987b\u4fdd\u8bc1\u6587\u4ef6\u8def\u5f84\u6b63\u786e\uff0c\u5426\u5219\u811a\u672c\u5c06\u65e0\u6cd5\u6267\u884c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u4f7f\u7528 async \u548c defer \u5c5e\u6027<\/h3>\n<\/p>\n
\u5f53\u811a\u672c\u88ab\u653e\u7f6e\u5728HTML\u6587\u6863\u4e2d\u65f6\uff0c\u6709\u4e24\u4e2a\u91cd\u8981\u7684\u5c5e\u6027\u53ef\u4ee5\u7528\u6765\u63a7\u5236\u5916\u90e8\u811a\u672c\u7684\u52a0\u8f7d\u548c\u6267\u884c\u65b9\u5f0f\uff1aasync<\/code>\u548cdefer<\/code>\u3002<\/p>\n<\/p>\n
    \n
  • \u4f7f\u7528 async<\/code>\uff1a<\/li>\n<\/ul>\n
    <script async src="path\/to\/your-script.js"><\/script><\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u6b64\u5c5e\u6027\u8868\u793a\u6d4f\u89c8\u5668\u5c06\u5728\u811a\u672c\u4e0b\u8f7d\u7684\u8fc7\u7a0b\u4e2d\u540c\u65f6\u8fdb\u884c\u9875\u9762\u7684\u6e32\u67d3\u3002\u4e0b\u8f7d\u5b8c\u6210\u540e\u4f1a\u7acb\u5373\u6682\u505c\u6e32\u67d3\uff0c\u6267\u884c\u811a\u672c\u3002\u9002\u7528\u4e8e\u90a3\u4e9b\u4e0d\u8981\u6c42\u4e0e\u9875\u9762DOM\u4e92\u52a8\u6216\u987a\u5e8f\u6267\u884c\u7684\u72ec\u7acb\u811a\u672c\u3002<\/p>\n<\/p>\n
      \n
    • \u4f7f\u7528 defer<\/code>\uff1a<\/li>\n<\/ul>\n
      <script defer src="path\/to\/your-script.js"><\/script><\/p>\n
      <\/code><\/pre>\n<\/p>\n
      defer<\/code>\u5c5e\u6027\u5219\u8ba9\u6d4f\u89c8\u5668\u6309\u7167\u811a\u672c\u6807\u7b7e\u51fa\u73b0\u7684\u987a\u5e8f\uff0c\u5ef6\u8fdf\u5230\u6574\u4e2a\u9875\u9762\u89e3\u6790\u5b8c\u6bd5\u540e\u624d\u53bb\u6267\u884c\u811a\u672c\uff0c\u9002\u5408\u9700\u8981\u5728\u6587\u6863\u89e3\u6790\u5b8c\u6bd5\u540e\u8fd0\u884c\u7684\u811a\u672c\u3002<\/p>\n<\/p>\n
      \u56db\u3001\u5904\u7406\u811a\u672c\u52a0\u8f7d\u5f02\u5e38<\/h3>\n<\/p>\n
      \u5f53\u5f15\u5165\u5916\u90e8\u811a\u672c\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u7f51\u7edc\u95ee\u9898\u6216\u8005\u6587\u4ef6\u4e0d\u5b58\u5728\u7684\u60c5\u51b5\uff0c\u8fd9\u65f6\u53ef\u4ee5\u901a\u8fc7\u9519\u8bef\u5904\u7406\u673a\u5236\u786e\u4fdd\u7f51\u9875\u7684\u7528\u6237\u4f53\u9a8c\u4e0d\u53d7\u5f71\u54cd\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u76d1\u542cscript\u6807\u7b7e\u7684error\u4e8b\u4ef6\u8fdb\u884c\u76f8\u5e94\u5904\u7406<\/strong>\u3002<\/p>\n<\/p>\n
      <script src="path\/to\/your-script.js" onerror="handleError()"><\/script><\/p>\n
      <script><\/p>\n
          function handleError() {<\/p>\n
              console.log('Error loading script.');<\/p>\n
          }<\/p>\n
      <\/script><\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e94\u3001\u8003\u8651\u811a\u672c\u6267\u884c\u987a\u5e8f<\/h3>\n<\/p>\n
      \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c \u811a\u672c\u7684\u52a0\u8f7d\u548c\u6267\u884c\u987a\u5e8f\u5bf9\u4e8e\u529f\u80fd\u7684\u6b63\u786e\u5b9e\u73b0\u81f3\u5173\u91cd\u8981<\/strong>\u3002\u5c24\u5176\u662f\u5f53\u4e00\u4e2a\u811a\u672c\u4f9d\u8d56\u53e6\u4e00\u4e2a\u811a\u672c\u65f6\uff0c\u786e\u4fdd\u4ed6\u4eec\u4ee5\u6b63\u786e\u7684\u987a\u5e8f\u88ab\u6267\u884c\u662f\u907f\u514d\u9519\u8bef\u7684\u5173\u952e\u3002<\/p>\n<\/p>\n
      \u603b\u7ed3\u800c\u8a00\uff0c\u5d4c\u5165\u539f\u751fJavaScript\u4ee3\u7801\u5173\u952e\u5728\u4e8e\u5bf9<script><\/code>\u6807\u7b7e\u7684\u5229\u7528\u548c\u5bf9\u52a0\u8f7d\u65b9\u5f0f\u7684\u9009\u62e9\u3002\u7ed3\u5408\u9879\u76ee\u9700\u6c42\u3001\u9875\u9762\u6027\u80fd\u548c\u7ef4\u62a4\u7684\u6613\u5229\u6027\u6765\u9009\u62e9\u5408\u9002\u7684\u65b9\u6848\u3002\u6b64\u5916\uff0c\u7ec6\u8282\u63a7\u5236\u5982\u5f02\u6b65\u52a0\u8f7d\u548c\u9519\u8bef\u5904\u7406\u4e5f\u662f\u4fdd\u969c\u5927\u578bWeb\u5e94\u7528\u7a33\u5b9a\u8fd0\u884c\u7684\u5fc5\u4e0d\u53ef\u5c11\u7684\u73af\u8282\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
      1. \u5982\u4f55\u5728\u7f51\u9875\u4e2d\u5f15\u5165 JavaScript \u6587\u4ef6\uff1f<\/strong>
      \n\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u6807\u7b7e\u5c06\u5916\u90e8\u7684 JavaScript \u6587\u4ef6\u5f15\u5165\u5230\u7f51\u9875\u4e2d\u3002\u5728\u6807\u7b7e\u7684src\u5c5e\u6027\u4e2d\u6307\u5b9a\u8981\u5f15\u5165\u7684 JavaScript \u6587\u4ef6\u7684\u8def\u5f84\uff0c\u6d4f\u89c8\u5668\u4f1a\u81ea\u52a8\u4e0b\u8f7d\u5e76\u6267\u884c\u8be5\u6587\u4ef6\u4e2d\u7684\u4ee3\u7801\u3002<\/p>\n
      2. \u662f\u5426\u53ef\u4ee5\u76f4\u63a5\u5728\u7f51\u9875\u4e2d\u7f16\u5199 JavaScript \u4ee3\u7801\uff1f<\/strong>
      \n\u662f\u7684\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728\u7f51\u9875\u7684\u6807\u7b7e\u4e2d\u7f16\u5199 JavaScript \u4ee3\u7801\u3002\u5c06\u6807\u7b7e\u653e\u7f6e\u5728\u7f51\u9875\u7684\u6216\u6807\u7b7e\u4e2d\uff0c\u5728\u6807\u7b7e\u4e2d\u7f16\u5199 JavaScript \u4ee3\u7801\uff0c\u6d4f\u89c8\u5668\u4f1a\u76f4\u63a5\u6267\u884c\u8be5\u4ee3\u7801\u3002<\/p>\n
      3. \u5982\u4f55\u5728\u7f51\u9875\u4e2d\u5d4c\u5165\u5185\u8054 JavaScript \u4ee3\u7801\uff1f<\/strong>
      \n\u4f7f\u7528\u6807\u7b7e\u7684\u5185\u8054\u529f\u80fd\uff0c\u53ef\u4ee5\u5728\u7f51\u9875\u7684\u4efb\u610f\u4f4d\u7f6e\u5d4c\u5165\u5185\u8054 JavaScript \u4ee3\u7801\u3002\u5c06\u6807\u7b7e\u653e\u7f6e\u5728\u7f51\u9875\u7684\u6807\u7b7e\u4e2d\uff0c\u5728\u6807\u7b7e\u7684…\u4e4b\u95f4\u7f16\u5199 JavaScript \u4ee3\u7801\uff0c\u8be5\u4ee3\u7801\u4f1a\u5728\u7f51\u9875\u52a0\u8f7d\u65f6\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728\u7f51\u9875\u4e2d\u5d4c\u5165\u539f\u751f JavaScript \u4ee3\u7801\uff0c\u7b80\u5355\u6765\u8bf4\u901a\u5e38\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\u901a\u8fc7<script>\u6807\u7b7e\u76f4\u63a5 […]","protected":false},"author":3,"featured_media":157697,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/157685"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=157685"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/157685\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/157697"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=157685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=157685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=157685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}