{"id":304392,"date":"2024-05-20T19:21:31","date_gmt":"2024-05-20T11:21:31","guid":{"rendered":""},"modified":"2024-05-20T19:21:50","modified_gmt":"2024-05-20T11:21:50","slug":"%e5%89%8d%e7%ab%af-js-%e4%bb%a3%e7%a0%81%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0-checkbox-%e4%ba%92%e6%96%a5%e5%8a%9f%e8%83%bd-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/304392.html","title":{"rendered":"\u524d\u7aef JS \u4ee3\u7801\u5982\u4f55\u5b9e\u73b0 checkbox \u4e92\u65a5\u529f\u80fd"},"content":{"rendered":"

\"\u524d\u7aef<\/p>\n

\u8981\u5b9e\u73b0\u524d\u7aef JS \u4ee3\u7801\u4e2d checkbox \u7684\u4e92\u65a5\u529f\u80fd\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u6b65\u9aa4\uff1a\u4f7f\u7528 JavaScript \u76d1\u542c\u4e8b\u4ef6\u5904\u7406\u3001\u8bbe\u7f6e\u6761\u4ef6\u903b\u8f91\u5224\u65ad\u3001\u5e94\u7528\u903b\u8f91\u5230 HTML \u5143\u7d20\u4e0a<\/strong>\u3002\u4e92\u65a5\u610f\u5473\u7740\u5728\u591a\u4e2a\u9009\u62e9\u6846\uff08checkboxes\uff09\u4e2d\uff0c\u7528\u6237\u4e00\u6b21\u53ea\u80fd\u9009\u62e9\u4e00\u4e2a\u3002\u8fd9\u901a\u5e38\u5728\u9700\u8981\u7528\u6237\u505a\u51fa\u5355\u4e00\u9009\u62e9\u4f46\u51fa\u4e8eUI\u8bbe\u8ba1\u7406\u7531\u4e0d\u60f3\u4f7f\u7528\u5355\u9009\u6309\u94ae\uff08radio buttons\uff09\u65f6\u975e\u5e38\u6709\u7528\u3002\u5176\u4e2d\u6700\u5173\u952e\u7684\u6b65\u9aa4\u662f\u8bbe\u7f6e\u6761\u4ef6\u903b\u8f91\u5224\u65ad<\/strong>\uff0c\u4ee5\u786e\u4fdd\u5f53\u4e00\u4e2a\u9009\u9879\u88ab\u9009\u62e9\u65f6\uff0c\u5176\u4ed6\u5df2\u9009\u62e9\u7684\u9009\u9879\u4f1a\u88ab\u81ea\u52a8\u53d6\u6d88\u9009\u62e9\u3002\u8fd9\u9700\u8981\u4ed4\u7ec6\u5730\u5904\u7406\u4e8b\u4ef6\u76d1\u542c\u548c\u72b6\u6001\u66f4\u65b0\uff0c\u4ee5\u786e\u4fdd\u754c\u9762\u7684\u884c\u4e3a\u7b26\u5408\u9884\u671f\uff0c\u540c\u65f6\u4e5f\u4fdd\u6301\u826f\u597d\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u8bbe\u7f6eHTML\u7ed3\u6784<\/strong><\/h2>\n<\/p>\n

\u9996\u5148\uff0c\u4f60\u9700\u8981\u51c6\u5907HTML\u7ed3\u6784\u3002\u5047\u8bbe\u6709\u4e09\u4e2acheckbox\u9009\u9879\uff0c\u5b83\u4eec\u5171\u540c\u53c2\u4e0e\u4e92\u65a5\u903b\u8f91\uff1a<\/p>\n<\/p>\n

<div><\/p>\n
  <input type="checkbox" id="option1" name="options" onchange="updateCheckbox(this.id)"> Option 1<br><\/p>\n
  <input type="checkbox" id="option2" name="options" onchange="updateCheckbox(this.id)"> Option 2<br><\/p>\n
  <input type="checkbox" id="option3" name="options" onchange="updateCheckbox(this.id)"> Option 3<\/p>\n
<\/div><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u91cc\uff0c\u6bcf\u4e2acheckbox\u90fd\u7ed1\u5b9a\u4e86\u76f8\u540c\u7684onchange<\/code>\u4e8b\u4ef6\u5904\u7406\u51fd\u6570updateCheckbox<\/code>\uff0c\u8fd9\u4f7f\u6211\u4eec\u80fd\u591f\u5728\u7528\u6237\u9009\u62e9\u4efb\u4e00\u9009\u9879\u65f6\u6267\u884cJavaScript\u4ee3\u7801\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u7f16\u5199JavaScript\u903b\u8f91<\/strong><\/h2>\n<\/p>\n
\u7f16\u5199JavaScript\u903b\u8f91\u662f\u5b9e\u73b0checkbox\u4e92\u65a5\u529f\u80fd\u7684\u6838\u5fc3\u3002\u6211\u4eec\u5b9a\u4e49updateCheckbox<\/code>\u51fd\u6570\uff0c\u5b83\u4f1a\u63a5\u6536\u89e6\u53d1\u4e8b\u4ef6\u7684checkbox\u7684id\u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n<\/p>\n
function updateCheckbox(selectedId) {<\/p>\n
  \/\/ \u83b7\u53d6\u6240\u6709\u540c\u540d\u7684checkbox\u5143\u7d20<\/p>\n
  var checkboxes = document.getElementsByName('options');<\/p>\n
  \/\/ \u904d\u5386\u6240\u6709\u5143\u7d20\uff0c\u5c06\u975e\u9009\u4e2d\u7684checkbox\u72b6\u6001\u8bbe\u7f6e\u4e3afalse<\/p>\n
  for(var i=0; i < checkboxes.length; i++) {<\/p>\n
    if(checkboxes[i].id !== selectedId) {<\/p>\n
      checkboxes[i].checked = false;<\/p>\n
    }<\/p>\n
  }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u903b\u8f91\u4e2d\uff0c\u5f53\u4efb\u4e00checkbox\u89e6\u53d1onchange<\/code>\u4e8b\u4ef6\u65f6\uff0cupdateCheckbox<\/code>\u51fd\u6570\u88ab\u8c03\u7528\u3002\u51fd\u6570\u9996\u5148\u83b7\u53d6\u6240\u6709\u540c\u540d\uff08\u5373\u5c5e\u4e8e\u540c\u4e00\u903b\u8f91\u7ec4\uff09\u7684checkbox\u5143\u7d20\uff0c\u7136\u540e\u904d\u5386\u8fd9\u4e9b\u5143\u7d20\u3002\u5bf9\u4e8e\u6bcf\u4e2a\u5143\u7d20\uff0c\u5982\u679c\u5176id\u4e0d\u7b49\u4e8e\u89e6\u53d1\u4e8b\u4ef6\u7684checkbox\u7684id\uff0c\u90a3\u4e48\u5c31\u5c06\u5176checked<\/code>\u5c5e\u6027\u8bbe\u7f6e\u4e3afalse<\/code>\uff0c\u4ece\u800c\u786e\u4fdd\u4e86\u4e92\u65a5\u529f\u80fd\u7684\u5b9e\u73b0<\/strong>\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u6837\u5f0f\u548c\u7528\u6237\u4f53\u9a8c\u4f18\u5316<\/strong><\/h2>\n<\/p>\n
\u867d\u7136\u6838\u5fc3\u7684JavaScript\u903b\u8f91\u80fd\u591f\u5b9e\u73b0\u57fa\u672c\u7684\u4e92\u65a5\u529f\u80fd\uff0c\u4f46\u5bf9\u4e8e\u63d0\u9ad8\u7528\u6237\u4f53\u9a8c\u800c\u8a00\uff0c\u8fd8\u53ef\u4ee5\u8fdb\u4e00\u6b65\u4f18\u5316\u6837\u5f0f\u548c\u884c\u4e3a\u3002<\/p>\n<\/p>\n
\u5904\u7406\u8fb9\u7f18\u60c5\u51b5<\/strong><\/h3>\n<\/p>\n
\u8003\u8651\u5230\u7528\u6237\u53ef\u80fd\u4f1a\u91cd\u65b0\u70b9\u51fb\u5df2\u9009\u4e2d\u7684checkbox\uff0c\u671f\u671b\u80fd\u591f\u53d6\u6d88\u9009\u62e9\u4f46\u4e0d\u9009\u62e9\u5176\u4ed6\u9009\u9879\u3002\u4e3a\u6b64\uff0c\u53ef\u4ee5\u4fee\u6539updateCheckbox<\/code>\u51fd\u6570\uff0c\u589e\u52a0\u5bf9\u5f53\u524d\u72b6\u6001\u7684\u68c0\u67e5\uff1a<\/p>\n<\/p>\n
function updateCheckbox(selectedId) {<\/p>\n
  \/\/ \u83b7\u53d6\u89e6\u53d1\u4e8b\u4ef6\u7684checkbox<\/p>\n
  var selectedCheckbox = document.getElementById(selectedId);<\/p>\n
  \/\/ \u7528\u6237\u662f\u5426\u5e0c\u671b\u53d6\u6d88\u9009\u62e9<\/p>\n
  var isChecked = selectedCheckbox.checked;<\/p>\n
  \/\/ \u83b7\u53d6\u6240\u6709\u540c\u540d\u7684checkbox\u5143\u7d20<\/p>\n
  var checkboxes = document.getElementsByName('options');<\/p>\n
  \/\/ \u904d\u5386\u6240\u6709\u5143\u7d20<\/p>\n
  for(var i=0; i < checkboxes.length; i++) {<\/p>\n
    \/\/ \u5982\u679c\u5f53\u524dcheckbox\u662f\u89e6\u53d1\u4e8b\u4ef6\u7684checkbox\u4e14\u7528\u6237\u5e0c\u671b\u53d6\u6d88\u9009\u62e9\uff0c\u5219\u4fdd\u7559\u5176\u72b6\u6001<\/p>\n
    if(checkboxes[i].id === selectedId) {<\/p>\n
      checkboxes[i].checked = isChecked;<\/p>\n
    } else {<\/p>\n
      \/\/ \u5426\u5219\u6e05\u9664\u5176\u4ed6\u6240\u6709checkbox\u7684\u9009\u4e2d\u72b6\u6001<\/p>\n
      checkboxes[i].checked = false;<\/p>\n
    }<\/p>\n
  }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f18\u5316\u6837\u5f0f<\/strong><\/h3>\n<\/p>\n
\u4e3a\u4e86\u8ba9\u7528\u6237\u66f4\u6e05\u695a\u5730\u77e5\u9053\u54ea\u4e9b\u9009\u9879\u662f\u4e92\u65a5\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7CSS\u6765\u589e\u5f3a\u89c6\u89c9\u53cd\u9988\uff1a<\/p>\n<\/p>\n
input[type="checkbox"] {<\/p>\n
  \/* CSS\u6837\u5f0f *\/<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u751a\u81f3\u53ef\u4ee5\u4f7f\u7528JavaScript\u52a8\u6001\u8c03\u6574\u6837\u5f0f\uff0c\u4f8b\u5982\u5728\u7528\u6237\u9009\u62e9\u67d0\u4e2a\u9009\u9879\u65f6\uff0c\u6539\u53d8\u5176\u4ed6\u9009\u9879\u7684\u900f\u660e\u5ea6\u7b49\u3002<\/p>\n<\/p>\n
\u56db\u3001\u6d4b\u8bd5\u548c\u8c03\u8bd5<\/strong><\/h2>\n<\/p>\n
\u5b9e\u73b0\u529f\u80fd\u540e\uff0c\u5f7b\u5e95\u7684\u6d4b\u8bd5\u662f\u786e\u4fdd\u4ee3\u7801\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u90fd\u80fd\u6b63\u5e38\u5de5\u4f5c\u7684\u5173\u952e\u3002\u4f60\u9700\u8981\u5728\u591a\u4e2a\u6d4f\u89c8\u5668\u548c\u8bbe\u5907\u4e0a\u6d4b\u8bd5checkbox\u7684\u4e92\u65a5\u884c\u4e3a\uff0c\u786e\u4fdd\u903b\u8f91\u5728\u7528\u6237\u4ea4\u4e92\u4e2d\u8868\u73b0\u4e00\u81f4\u3002<\/p>\n<\/p>\n
\u8de8\u6d4f\u89c8\u5668\u6d4b\u8bd5<\/strong><\/h3>\n<\/p>\n
\u7531\u4e8e\u4e0d\u540c\u6d4f\u89c8\u5668\u53ef\u80fd\u4f1a\u6709\u4e0d\u540c\u7684JS\u6267\u884c\u7ec6\u8282\uff0c\u5bf9\u4e3b\u6d41\u6d4f\u89c8\u5668\u8fdb\u884c\u6d4b\u8bd5\u662f\u5fc5\u987b\u7684\u3002\u5305\u62ec\u4f46\u4e0d\u9650\u4e8eChrome\u3001Firefox\u3001Safari\u7b49\u3002<\/p>\n<\/p>\n
\u8fb9\u7f18\u60c5\u51b5\u5904\u7406<\/strong><\/h3>\n<\/p>\n
\u786e\u4fdd\u6240\u6709\u8fb9\u7f18\u60c5\u51b5\u90fd\u88ab\u59a5\u5584\u5904\u7406\uff0c\u4f8b\u5982\u7528\u6237\u5feb\u901f\u5207\u6362\u4e0d\u540c\u9009\u9879\u3001\u5728\u9009\u9879\u53d8\u66f4\u65f6\u8fdb\u884c\u9875\u9762\u5237\u65b0\u7b49\u3002<\/p>\n<\/p>\n
\u603b\u800c\u8a00\u4e4b<\/strong>\uff0c\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5b9e\u73b0\u524d\u7aefJS\u4ee3\u7801\u4e2dcheckbox\u7684\u4e92\u65a5\u529f\u80fd\u3002\u91cd\u8981\u7684\u662f\u8981\u7ec6\u5fc3\u5904\u7406\u597d\u6bcf\u4e2a\u7ec6\u8282\uff0c\u5305\u62ec\u903b\u8f91\u5224\u65ad\u7684\u51c6\u786e\u6027\u3001\u7528\u6237\u4f53\u9a8c\u7684\u53cb\u597d\u6027\u4ee5\u53ca\u4ee3\u7801\u7684\u517c\u5bb9\u6027\u548c\u5065\u58ee\u6027\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
1. \u5982\u4f55\u4f7f\u7528 JavaScript \u5b9e\u73b0 checkbox \u4e92\u65a5\u529f\u80fd\uff1f<\/strong>
\n\u5b9e\u73b0 checkbox \u4e92\u65a5\u529f\u80fd\u7684\u65b9\u6cd5\u6709\u5f88\u591a\u79cd\uff0c\u5176\u4e2d\u4e00\u79cd\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u901a\u8fc7\u4f7f\u7528\u4e8b\u4ef6\u76d1\u542c\u5668\u6765\u5b9e\u73b0\u3002\u4f60\u53ef\u4ee5\u4e3a\u6bcf\u4e2a checkbox \u6dfb\u52a0\u4e00\u4e2a\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u5728\u70b9\u51fb\u5176\u4e2d\u4e00\u4e2a checkbox \u65f6\uff0c\u901a\u8fc7JavaScript\u4ee3\u7801\u5c06\u5176\u4ed6\u7684 checkbox \u7684\u9009\u4e2d\u72b6\u6001\u8bbe\u7f6e\u4e3afalse\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5b9e\u73b0 checkbox \u7684\u4e92\u65a5\u529f\u80fd\u3002<\/p>\n
2. checkbox \u4e92\u65a5\u529f\u80fd\u7684\u5b9e\u73b0\u539f\u7406\u662f\u4ec0\u4e48\uff1f<\/strong>
\ncheckbox \u4e92\u65a5\u529f\u80fd\u7684\u5b9e\u73b0\u539f\u7406\u662f\uff0c\u5f53\u4e00\u4e2a checkbox \u88ab\u9009\u4e2d\u65f6\uff0c\u5176\u4ed6\u7684 checkbox \u4e0d\u80fd\u88ab\u9009\u4e2d\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 JavaScript \u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u6765\u76d1\u542c checkbox \u7684\u70b9\u51fb\u4e8b\u4ef6\u3002\u5f53\u4e00\u4e2a checkbox \u88ab\u70b9\u51fb\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u6240\u6709\u7684 checkbox\uff0c\u5c06\u9664\u4e86\u5f53\u524d\u88ab\u70b9\u51fb\u7684 checkbox \u5916\u7684\u5176\u4ed6 checkbox \u7684\u9009\u4e2d\u72b6\u6001\u8bbe\u7f6e\u4e3a false\u3002<\/p>\n
3. \u5728 HTML \u4e2d\uff0c\u5982\u4f55\u4e3a checkbox \u6dfb\u52a0\u4e92\u65a5\u529f\u80fd\u7684 JavaScript \u4ee3\u7801\uff1f<\/strong>
\n\u5b9e\u73b0 checkbox \u4e92\u65a5\u529f\u80fd\u7684 JavaScript \u4ee3\u7801\u53ef\u4ee5\u5d4c\u5165\u5728 HTML \u6587\u4ef6\u4e2d\u7684 <script><\/code> \u6807\u7b7e\u5185\uff0c\u6216\u8005\u5355\u72ec\u5199\u5728\u4e00\u4e2a JavaScript \u6587\u4ef6\u4e2d\u5e76\u5728 HTML \u4e2d\u901a\u8fc7 <script><\/code> \u6807\u7b7e\u5f15\u5165\u3002\u5728\u4ee3\u7801\u4e2d\uff0c\u4f60\u9700\u8981\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\u6765\u5b9e\u73b0\u4e92\u65a5\u529f\u80fd\uff1a<\/p>\n
    \n
  • \u7ed9\u6240\u6709\u7684 checkbox \u5143\u7d20\u6dfb\u52a0\u4e00\u4e2a\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u76d1\u542c\u70b9\u51fb\u4e8b\u4ef6\u3002<\/li>\n
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  • \u5bf9\u4e8e\u6bcf\u4e2a checkbox\uff0c\u5224\u65ad\u662f\u5426\u4e3a\u5f53\u524d\u88ab\u70b9\u51fb\u7684 checkbox\uff0c\u5982\u679c\u662f\uff0c\u5219\u8df3\u8fc7\u3002<\/li>\n
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