{"id":296962,"date":"2024-05-20T16:15:19","date_gmt":"2024-05-20T08:15:19","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/296962.html"},"modified":"2024-05-20T16:15:25","modified_gmt":"2024-05-20T08:15:25","slug":"javascript-%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e6%8b%96%e6%8b%bd%e5%8a%9f%e8%83%bd-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/296962.html","title":{"rendered":"JavaScript \u5982\u4f55\u5b9e\u73b0\u62d6\u62fd\u529f\u80fd"},"content":{"rendered":"

\"JavaScript<\/p>\n

\u5728\u5b9e\u73b0JavaScript\u62d6\u62fd\u529f\u80fd\u65f6\uff0c\u6838\u5fc3\u89c2\u70b9\u96c6\u4e2d\u5728\uff1a\u521b\u5efa\u53ef\u62d6\u62fd\u5143\u7d20\u3001\u76d1\u542c\u62d6\u62fd\u4e8b\u4ef6\u3001\u8ba1\u7b97\u5143\u7d20\u65b0\u4f4d\u7f6e\u3001\u66f4\u65b0\u5143\u7d20\u4f4d\u7f6e<\/strong>\u3002\u5728\u8fd9\u4e9b\u6b65\u9aa4\u4e2d\uff0c\u76d1\u542c\u62d6\u62fd\u4e8b\u4ef6<\/strong>\u5c24\u4e3a\u5173\u952e\u3002\u901a\u8fc7\u76d1\u89c6\u62d6\u62fd\u8fc7\u7a0b\u4e2d\u7684mousedown<\/code>\u3001mousemove<\/code>\u4ee5\u53camouseup<\/code>\u4e8b\u4ef6\uff0c\u6211\u4eec\u80fd\u591f\u6355\u6349\u5230\u7528\u6237\u7684\u62d6\u62fd\u52a8\u4f5c\u3001\u79fb\u52a8\u8f68\u8ff9\u548c\u653e\u4e0b\u65f6\u7684\u4f4d\u7f6e\uff0c\u4ece\u800c\u5b9e\u73b0\u5143\u7d20\u7684\u62d6\u62fd\u6548\u679c\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u521b\u5efa\u53ef\u62d6\u62fd\u5143\u7d20<\/h3>\n<\/p>\n

\u5728\u5b9e\u73b0\u62d6\u62fd\u529f\u80fd\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u6709\u4e00\u4e2a\u53ef\u62d6\u62fd\u7684\u5143\u7d20\u3002\u8fd9\u4e2a\u5143\u7d20\u53ef\u4ee5\u662f\u9875\u9762\u4e0a\u7684\u4efb\u4f55\u4e1c\u897f\uff0c\u6bd4\u5982\u4e00\u4e2adiv<\/code>\u3001\u56fe\u7247\u6216\u8005\u5176\u4ed6HTML\u5143\u7d20\u3002\u901a\u5e38\uff0c\u901a\u8fc7\u8bbe\u7f6eid<\/code>\u6216class<\/code>\u6765\u6807\u8bc6\u8fd9\u4e2a\u5143\u7d20\uff0c\u4fbf\u4e8e\u540e\u7eed\u901a\u8fc7JavaScript\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<\/p>\n

\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u62d6\u62fd\u5143\u7d20\uff0c\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

<div id="draggable" style="width: 100px; height: 100px; background: red;"><\/div><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u4f7f\u7528JavaScript\u6765\u4e3a\u8fd9\u4e2a\u5143\u7d20\u589e\u52a0\u62d6\u62fd\u529f\u80fd\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u76d1\u542c\u62d6\u62fd\u4e8b\u4ef6<\/h3>\n<\/p>\n
\u8981\u5b9e\u73b0\u62d6\u62fd\u529f\u80fd\uff0c\u5173\u952e\u5728\u4e8e\u76d1\u542c\u5143\u7d20\u4e0a\u7684\u4e09\u4e2a\u4e3b\u8981\u4e8b\u4ef6\uff1amousedown<\/code>\u3001mousemove<\/code>\u3001mouseup<\/code>\u3002<\/p>\n<\/p>\n
    \n
  1. \n
    mousedown<\/code>\u4e8b\u4ef6<\/strong>\uff1a\u8be5\u4e8b\u4ef6\u5728\u7528\u6237\u6309\u4e0b\u9f20\u6807\u6309\u94ae\u65f6\u89e6\u53d1\u3002\u5728\u6b64\u4e8b\u4ef6\u7684\u5904\u7406\u51fd\u6570\u4e2d\uff0c\u4f60\u53ef\u4ee5\u8bb0\u5f55\u4e0b\u5f00\u59cb\u62d6\u62fd\u7684\u6807\u5fd7\uff0c\u5e76\u4fdd\u5b58\u521d\u59cb\u4f4d\u7f6e\u7b49\u4fe1\u606f\u3002<\/p>\n<\/p>\n<\/li>\n
  2. \n
    mousemove<\/code>\u4e8b\u4ef6<\/strong>\uff1a\u5f53\u9f20\u6807\u5728\u5143\u7d20\u5185\u90e8\u79fb\u52a8\u65f6\u89e6\u53d1\u6b64\u4e8b\u4ef6\u3002\u5982\u679c\u5df2\u7ecf\u89e6\u53d1\u4e86mousedown<\/code>\u4e8b\u4ef6\uff0c\u5373\u62d6\u62fd\u5f00\u59cb\uff0c\u4f60\u5219\u53ef\u4ee5\u901a\u8fc7\u6b64\u4e8b\u4ef6\u6765\u8ba1\u7b97\u5143\u7d20\u7684\u65b0\u4f4d\u7f6e\u3002<\/p>\n<\/p>\n<\/li>\n
  3. \n
    mouseup<\/code>\u4e8b\u4ef6<\/strong>\uff1a\u7528\u6237\u91ca\u653e\u9f20\u6807\u6309\u94ae\u65f6\u89e6\u53d1\u8be5\u4e8b\u4ef6\uff0c\u6807\u5fd7\u7740\u62d6\u62fd\u64cd\u4f5c\u7684\u7ed3\u675f\u3002\u5728\u6b64\u65f6\uff0c\u53ef\u4ee5\u66f4\u65b0\u5143\u7d20\u7684\u4f4d\u7f6e\uff0c\u5e76\u91cd\u7f6e\u4efb\u4f55\u7528\u4e8e\u8ddf\u8e2a\u62d6\u62fd\u72b6\u6001\u7684\u6807\u5fd7\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u4e09\u3001\u8ba1\u7b97\u5143\u7d20\u65b0\u4f4d\u7f6e<\/h3>\n<\/p>\n
    \u5f53\u76d1\u542c\u5230mousemove<\/code>\u4e8b\u4ef6\u65f6\uff0c\u9700\u8981\u5b9e\u65f6\u8ba1\u7b97\u5143\u7d20\u7684\u65b0\u4f4d\u7f6e\u3002\u8fd9\u901a\u5e38\u901a\u8fc7\u6bd4\u8f83\u5f53\u524d\u9f20\u6807\u4f4d\u7f6e\u548c\u62d6\u62fd\u5f00\u59cb\u65f6\u9f20\u6807\u7684\u4f4d\u7f6e\u6765\u5b9e\u73b0\u3002\u901a\u8fc7\u5f97\u5230\u8fd9\u4e24\u4e2a\u4f4d\u7f6e\u7684\u5dee\u503c\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba1\u7b97\u51fa\u5143\u7d20\u9700\u8981\u79fb\u52a8\u7684\u8ddd\u79bb\u3002<\/p>\n<\/p>\n
      \n
    1. \u8bb0\u5f55\u9f20\u6807\u70b9\u51fb\u65f6\u7684\u4f4d\u7f6e\uff0c\u4ee5\u53ca\u5143\u7d20\u5f53\u524d\u7684\u4f4d\u7f6e\u3002<\/li>\n
    2. \u5f53\u9f20\u6807\u79fb\u52a8\u65f6\uff0c\u8ba1\u7b97\u9f20\u6807\u4f4d\u7f6e\u7684\u6539\u53d8\u91cf\uff0c\u7136\u540e\u5e94\u7528\u8fd9\u4e2a\u5dee\u503c\u5230\u5143\u7d20\u7684\u4f4d\u7f6e\u4e0a\u3002<\/li>\n<\/ol>\n
      \u56db\u3001\u66f4\u65b0\u5143\u7d20\u4f4d\u7f6e<\/h3>\n<\/p>\n
      \u6700\u540e\u4e00\u6b65\u662f\u66f4\u65b0\u5143\u7d20\u7684\u4f4d\u7f6e\u3002\u8fd9\u662f\u901a\u8fc7\u4fee\u6539\u5143\u7d20\u7684style<\/code>\u5c5e\u6027\u6765\u5b8c\u6210\u7684\uff0c\u5177\u4f53\u6765\u8bf4\uff0c\u662f\u66f4\u65b0\u5143\u7d20\u7684left<\/code>\u548ctop<\/code>\u503c\u3002<\/p>\n<\/p>\n
      element.style.left = newLeft + 'px';<\/p>\n
      element.style.top = newTop + 'px';<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u901a\u8fc7\u8fd9\u4e2a\u65b9\u5f0f\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u5143\u7d20\u968f\u7740\u9f20\u6807\u7684\u62d6\u62fd\u800c\u79fb\u52a8\u3002<\/p>\n<\/p>\n
      \u4e94\u3001\u5b8c\u6574\u5b9e\u73b0\u4ee3\u7801\u793a\u4f8b<\/h3>\n<\/p>\n
      \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u62d6\u62fd\u5b9e\u73b0\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
      const draggable = document.getElementById('draggable');<\/p>\n
      let isDragging = false;<\/p>\n
      let startX, startY, startLeft, startTop;<\/p>\n
      draggable.addEventListener('mousedown', function(e) {<\/p>\n
          isDragging = true;<\/p>\n
          startX = e.pageX;<\/p>\n
          startY = e.pageY;<\/p>\n
          startLeft = draggable.offsetLeft;<\/p>\n
          startTop = draggable.offsetTop;<\/p>\n
          e.preventDefault(); \/\/ \u963b\u6b62\u9ed8\u8ba4\u884c\u4e3a<\/p>\n
      });<\/p>\n
      document.addEventListener('mousemove', function(e) {<\/p>\n
          if (isDragging) {<\/p>\n
              const moveX = e.pageX - startX;<\/p>\n
              const moveY = e.pageY - startY;<\/p>\n
              draggable.style.left = startLeft + moveX + 'px';<\/p>\n
              draggable.style.top = startTop + moveY + 'px';<\/p>\n
          }<\/p>\n
      });<\/p>\n
      document.addEventListener('mouseup', function() {<\/p>\n
          isDragging = false;<\/p>\n
      });<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\u548c\u793a\u4f8b\u4ee3\u7801\uff0c\u6211\u4eec\u4e0d\u4ec5\u8bb2\u89e3\u4e86\u5982\u4f55\u5728JavaScript\u4e2d\u5b9e\u73b0\u62d6\u62fd\u529f\u80fd\u7684\u57fa\u672c\u601d\u60f3\uff0c\u4e5f\u5c55\u793a\u4e86\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5b9e\u9645\u5f00\u53d1\u4e2d\u53ef\u80fd\u4f1a\u9047\u5230\u66f4\u590d\u6742\u7684\u60c5\u51b5\uff0c\u5982\u62d6\u62fd\u8fc7\u7a0b\u4e2d\u7684\u8fb9\u754c\u5904\u7406\u3001\u6027\u80fd\u4f18\u5316\u7b49\uff0c\u4f46\u57fa\u672c\u539f\u7406\u662f\u76f8\u901a\u7684\u3002\u7ee7\u7eed\u63a2\u7d22\u548c\u5b9e\u8df5\u5c06\u6709\u52a9\u4e8e\u6df1\u5165\u7406\u89e3\u5e76\u638c\u63e1\u8fd9\u4e00\u529f\u80fd\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
      \u5982\u4f55\u4f7f\u7528JavaScript\u5b9e\u73b0\u9875\u9762\u5143\u7d20\u7684\u62d6\u62fd\u529f\u80fd\uff1f<\/strong><\/p>\n
      \u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u53ef\u4ee5\u5b9e\u73b0\u9875\u9762\u5143\u7d20\u7684\u62d6\u62fd\u529f\u80fd\uff1a<\/p>\n
        \n
      1. \n
        \u5b9a\u4e49\u62d6\u62fd\u7684\u6e90\u5143\u7d20\u548c\u76ee\u6807\u5143\u7d20\u3002<\/strong> \u4f7f\u7528JavaScript\u9009\u62e9\u6e90\u5143\u7d20\u548c\u76ee\u6807\u5143\u7d20\uff0c\u53ef\u4ee5\u901a\u8fc7\u5143\u7d20\u7684\u7c7b\u540d\u6216ID\u6765\u9009\u62e9\u3002<\/p>\n<\/li>\n
      2. \n
        \u4e3a\u6e90\u5143\u7d20\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\u3002<\/strong> \u4f7f\u7528JavaScript\u4e3a\u6e90\u5143\u7d20\u6dfb\u52a0\u9f20\u6807\u6309\u4e0b\u3001\u9f20\u6807\u79fb\u52a8\u548c\u9f20\u6807\u91ca\u653e\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u3002<\/p>\n<\/li>\n
      3. \n
        \u8bb0\u5f55\u9f20\u6807\u6309\u4e0b\u65f6\u7684\u5750\u6807\u3002<\/strong> \u5728\u9f20\u6807\u6309\u4e0b\u4e8b\u4ef6\u4e2d\uff0c\u901a\u8fc7event\u5bf9\u8c61\u83b7\u53d6\u5f53\u524d\u9f20\u6807\u7684\u5750\u6807\u3002<\/p>\n<\/li>\n
      4. \n
        \u8ba1\u7b97\u6e90\u5143\u7d20\u76f8\u5bf9\u4e8e\u9f20\u6807\u6309\u4e0b\u4f4d\u7f6e\u7684\u504f\u79fb\u91cf\u3002<\/strong> \u901a\u8fc7\u9f20\u6807\u5750\u6807\u548c\u6e90\u5143\u7d20\u7684\u4f4d\u7f6e\u4fe1\u606f\u8ba1\u7b97\u6e90\u5143\u7d20\u7684\u504f\u79fb\u91cf\u3002<\/p>\n<\/li>\n
      5. \n
        \u5728\u9f20\u6807\u79fb\u52a8\u4e8b\u4ef6\u4e2d\u66f4\u65b0\u6e90\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/strong> \u5728\u9f20\u6807\u79fb\u52a8\u4e8b\u4ef6\u4e2d\uff0c\u901a\u8fc7\u8ba1\u7b97\u9f20\u6807\u7684\u4f4d\u7f6e\u548c\u6e90\u5143\u7d20\u7684\u504f\u79fb\u91cf\uff0c\u5b9e\u65f6\u66f4\u65b0\u6e90\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/li>\n
      6. \n
        \u5728\u9f20\u6807\u91ca\u653e\u4e8b\u4ef6\u4e2d\u7ed3\u675f\u62d6\u62fd\u3002<\/strong> \u5728\u9f20\u6807\u91ca\u653e\u4e8b\u4ef6\u4e2d\uff0c\u79fb\u9664\u9f20\u6807\u79fb\u52a8\u4e8b\u4ef6\u7684\u76d1\u542c\u5668\uff0c\u7ed3\u675f\u62d6\u62fd\u64cd\u4f5c\u3002<\/p>\n<\/li>\n
      7. \n
        \u66f4\u65b0\u76ee\u6807\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/strong> \u5728\u9f20\u6807\u91ca\u653e\u4e8b\u4ef6\u4e2d\uff0c\u5982\u679c\u9700\u8981\u5c06\u6e90\u5143\u7d20\u62d6\u62fd\u5230\u76ee\u6807\u5143\u7d20\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7JavaScript\u6539\u53d8\u76ee\u6807\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/p>\n<\/li>\n<\/ol>\n
        \u5982\u4f55\u5728JavaScript\u4e2d\u5b9e\u73b0\u62d6\u62fd\u65f6\u7684\u8fb9\u754c\u9650\u5236\uff1f<\/strong><\/p>\n
        \u8981\u5728\u62d6\u62fd\u65f6\u9650\u5236\u5143\u7d20\u7684\u79fb\u52a8\u8303\u56f4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n
          \n
        1. \n
          \u83b7\u53d6\u62d6\u62fd\u5143\u7d20\u548c\u5bb9\u5668\u7684\u5c3a\u5bf8\u3002<\/strong> \u901a\u8fc7JavaScript\u83b7\u53d6\u62d6\u62fd\u5143\u7d20\u548c\u5bb9\u5668\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u4fe1\u606f\u3002<\/p>\n<\/li>\n
        2. \n
          \u8ba1\u7b97\u8fb9\u754c\u503c\u3002<\/strong> \u6839\u636e\u62d6\u62fd\u5143\u7d20\u548c\u5bb9\u5668\u7684\u5c3a\u5bf8\uff0c\u8ba1\u7b97\u51fa\u62d6\u62fd\u5143\u7d20\u53ef\u4ee5\u79fb\u52a8\u7684\u6700\u5927\u5de6\u8fb9\u754c\u3001\u6700\u5927\u53f3\u8fb9\u754c\u3001\u6700\u5927\u4e0a\u8fb9\u754c\u548c\u6700\u5927\u4e0b\u8fb9\u754c\u3002<\/p>\n<\/li>\n
        3. \n
          \u5728\u9f20\u6807\u79fb\u52a8\u4e8b\u4ef6\u4e2d\u68c0\u67e5\u8fb9\u754c\u6761\u4ef6\u3002<\/strong> \u5728\u9f20\u6807\u79fb\u52a8\u4e8b\u4ef6\u4e2d\uff0c\u901a\u8fc7\u5224\u65ad\u62d6\u62fd\u5143\u7d20\u7684\u4f4d\u7f6e\u662f\u5426\u8d85\u51fa\u8fb9\u754c\uff0c\u6765\u9650\u5236\u62d6\u62fd\u5143\u7d20\u7684\u79fb\u52a8\u8303\u56f4\u3002<\/p>\n<\/li>\n
        4. \n
          \u66f4\u65b0\u62d6\u62fd\u5143\u7d20\u7684\u4f4d\u7f6e\u3002<\/strong> \u5728\u9f20\u6807\u79fb\u52a8\u4e8b\u4ef6\u4e2d\uff0c\u5982\u679c\u62d6\u62fd\u5143\u7d20\u7684\u4f4d\u7f6e\u8d85\u51fa\u8fb9\u754c\uff0c\u53ef\u4ee5\u901a\u8fc7JavaScript\u6539\u53d8\u62d6\u62fd\u5143\u7d20\u7684\u4f4d\u7f6e\uff0c\u5c06\u5176\u9650\u5236\u5728\u5408\u6cd5\u7684\u8303\u56f4\u5185\u3002<\/p>\n<\/li>\n<\/ol>\n
          \u5982\u4f55\u5728JavaScript\u4e2d\u5b9e\u73b0\u62d6\u62fd\u65f6\u7684\u5143\u7d20\u5c42\u7ea7\u64cd\u4f5c\uff1f<\/strong><\/p>\n
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