{"id":153728,"date":"2024-05-08T11:19:12","date_gmt":"2024-05-08T03:19:12","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/153728.html"},"modified":"2024-05-08T11:19:17","modified_gmt":"2024-05-08T03:19:17","slug":"%e6%80%8e%e4%b9%88%e7%94%a8-javascript-%e5%ae%9e%e7%8e%b0%e5%8d%95%e9%80%89%e8%a1%a8%e5%8d%95","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/153728.html","title":{"rendered":"\u600e\u4e48\u7528 javascript \u5b9e\u73b0\u5355\u9009\u8868\u5355"},"content":{"rendered":"

\"\u600e\u4e48\u7528<\/p>\n

\u5728\u4f7f\u7528JavaScript\u5b9e\u73b0\u5355\u9009\u8868\u5355\u65f6\uff0c\u4e3b\u8981\u6d89\u53ca\u5230HTML\u5355\u9009\u6309\u94ae\u7684\u5e03\u5c40\u3001\u8868\u5355\u7684\u63d0\u4ea4\u4ee5\u53caJavaScript\u7684\u4e8b\u4ef6\u5904\u7406\u3002\u6838\u5fc3\u6b65\u9aa4\u5305\u62ec\u521b\u5efa\u5355\u9009\u6309\u94ae\u3001\u6355\u83b7\u7528\u6237\u9009\u62e9\u3001\u8868\u5355\u6570\u636e\u7684\u63d0\u4ea4<\/strong>\u3002\u901a\u8fc7JavaScript\uff0c\u53ef\u4ee5\u63a7\u5236\u5355\u9009\u6309\u94ae\u884c\u4e3a\u3001\u9a8c\u8bc1\u7528\u6237\u9009\u62e9\u3001\u5904\u7406\u9009\u62e9\u7ed3\u679c\uff0c\u5e76\u4e0e\u540e\u7aef\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u3002<\/p>\n<\/p>\n

\u9996\u5148\u8981\u901a\u8fc7HTML\u521b\u5efa\u4e00\u7ec4\u5177\u6709\u76f8\u540cname<\/code>\u5c5e\u6027\u7684\u5355\u9009\u6309\u94ae\uff0c\u8fd9\u6837\u6d4f\u89c8\u5668\u4fbf\u77e5\u9053\u5b83\u4eec\u5c5e\u4e8e\u540c\u4e00\u7ec4\uff0c\u5e76\u4e14\u6bcf\u6b21\u53ea\u80fd\u9009\u4e2d\u4e00\u4e2a\u6309\u94ae\u3002\u7136\u540e\uff0c\u5728JavaScript\u4e2d\u4f60\u53ef\u4ee5\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\u6765\u5904\u7406\u7528\u6237\u7684\u9009\u62e9<\/strong>\u3002\u5f53\u8868\u5355\u63d0\u4ea4\u65f6\uff0cJavaScript\u53ef\u7528\u6765\u9a8c\u8bc1\u7528\u6237\u662f\u5426\u9009\u62e9\u4e86\u4e00\u4e2a\u9009\u9879\uff0c\u5e76\u53ef\u4ee5\u5904\u7406\u6216\u8f6c\u6362\u8fd9\u4e9b\u4fe1\u606f\uff0c\u5c06\u5176\u53d1\u9001\u5230\u670d\u52a1\u5668\u3002<\/p>\n<\/p>\n

\u4e00\u3001HTML\u5355\u9009\u6309\u94ae\u7684\u521b\u5efa<\/h3>\n<\/p>\n

\u5728HTML\u4e2d\uff0c\u5355\u9009\u6309\u94ae\u901a\u8fc7<input><\/code>\u6807\u7b7e\u7684type="radio"<\/code>\u5c5e\u6027\u5b9a\u4e49\u3002\u4e3a\u4e86\u5c06\u4e00\u7ec4\u5355\u9009\u6309\u94ae\u8054\u7cfb\u8d77\u6765\uff0c\u5b83\u4eec\u5e94\u8be5\u62e5\u6709\u76f8\u540c\u7684name<\/code>\u5c5e\u6027\u3002<\/p>\n<\/p>\n

<form id="myForm"><\/p>\n
  <label><\/p>\n
    <input type="radio" name="option" value="A"> \u9009\u9879A<\/p>\n
  <\/label><\/p>\n
  <label><\/p>\n
    <input type="radio" name="option" value="B"> \u9009\u9879B<\/p>\n
  <\/label><\/p>\n
  <label><\/p>\n
    <input type="radio" name="option" value="C"> \u9009\u9879C<\/p>\n
  <\/label><\/p>\n
  <button type="button" onclick="submitForm()">\u63d0\u4ea4<\/button><\/p>\n
<\/form><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0c\u4e09\u4e2a\u5355\u9009\u6309\u94ae\u88ab\u5f52\u4e3a\u4e00\u7ec4\uff0c\u56e0\u4e3a\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684name<\/code>\u5c5e\u6027\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u4f7f\u7528JavaScript\u7ed1\u5b9a\u4e8b\u4ef6<\/h3>\n<\/p>\n
\u5f53\u7528\u6237\u4ea4\u4e92\u5355\u9009\u6309\u94ae\uff0c\u6bd4\u5982\u8bf4\u9009\u4e2d\u4e00\u4e2a\u9009\u9879\uff0c\u53ef\u4ee5\u901a\u8fc7JavaScript\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u6765\u54cd\u5e94\u8fd9\u4e9b\u884c\u4e3a\u3002<\/p>\n<\/p>\n
function initialize() {<\/p>\n
  const radioButtons = document.querySelectorAll('input[name="option"]');<\/p>\n
  radioButtons.forEach(radio => {<\/p>\n
    radio.addEventListener('change', function() {<\/p>\n
      \/\/ \u7528\u6237\u9009\u62e9\u4e86\u4e00\u4e2a\u9009\u9879<\/p>\n
      alert('\u60a8\u9009\u62e9\u4e86\u9009\u9879: ' + this.value);<\/p>\n
    });<\/p>\n
  });<\/p>\n
}<\/p>\n
window.onload = initialize;<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u5f53\u4efb\u4e00\u5355\u9009\u6309\u94ae\u7684\u9009\u4e2d\u72b6\u6001\u53d8\u5316\u65f6\uff0c\u9875\u9762\u4f1a\u663e\u793a\u4e00\u4e2a\u8b66\u544a\u6846\uff0c\u544a\u77e5\u7528\u6237\u4ed6\u4eec\u6240\u9009\u62e9\u7684\u9009\u9879\u503c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u8868\u5355\u63d0\u4ea4\u548c\u6570\u636e\u5904\u7406<\/h3>\n<\/p>\n
\u8981\u63d0\u4ea4\u8868\u5355\uff0c\u5e76\u4e14\u5904\u7406\u9009\u4e2d\u7684\u5355\u9009\u6309\u94ae\u503c\uff0c\u901a\u5e38\u9700\u8981\u4e00\u4e2a\u63d0\u4ea4\u6309\u94ae\u3002\u5f53\u5b83\u88ab\u70b9\u51fb\u65f6\uff0cJavaScript\u51fd\u6570\u5c06\u88ab\u8c03\u7528\u6765\u5904\u7406\u8868\u5355\u6570\u636e\u3002<\/p>\n<\/p>\n
function submitForm() {<\/p>\n
  const selectedOption = document.querySelector('input[name="option"]:checked');<\/p>\n
  if (selectedOption) {<\/p>\n
    \/\/ \u83b7\u53d6\u9009\u4e2d\u7684\u503c<\/p>\n
    const selectedValue = selectedOption.value;<\/p>\n
    \/\/ \u8fdb\u884c\u540e\u7eed\u5904\u7406\uff0c\u4f8b\u5982\u8868\u5355\u9a8c\u8bc1\u6216\u53d1\u9001\u6570\u636e\u5230\u670d\u52a1\u5668<\/p>\n
    alert('\u63d0\u4ea4\u7684\u9009\u9879: ' + selectedValue);<\/p>\n
    \/\/ \u4f8b\u5982\uff0c\u53d1\u9001\u5230\u670d\u52a1\u5668\u7684\u4ee3\u7801\u5982\u4e0b<\/p>\n
    \/\/ fetch('server-side-script', {<\/p>\n
    \/\/   method: 'POST',<\/p>\n
    \/\/   body: JSON.stringify({ option: selectedValue }),<\/p>\n
    \/\/   headers: {<\/p>\n
    \/\/     'Content-Type': 'application\/json'<\/p>\n
    \/\/   }<\/p>\n
    \/\/ }).then(response => {<\/p>\n
    \/\/   \/\/ \u5904\u7406\u54cd\u5e94<\/p>\n
    \/\/ }).catch(error => {<\/p>\n
    \/\/   \/\/ \u5904\u7406\u9519\u8bef<\/p>\n
    \/\/ });<\/p>\n
  } else {<\/p>\n
    alert('\u8bf7\u5148\u9009\u62e9\u4e00\u4e2a\u9009\u9879\u7136\u540e\u63d0\u4ea4\uff01');<\/p>\n
  }<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u8868\u5355\u9a8c\u8bc1\u548c\u53cd\u9988<\/h3>\n<\/p>\n
\u4e3a\u4e86\u63d0\u4f9b\u826f\u597d\u7684\u7528\u6237\u4f53\u9a8c\u548c\u9632\u6b62\u65e0\u6548\u63d0\u4ea4\uff0c\u8868\u5355\u9a8c\u8bc1\u662f\u5fc5\u8981\u7684\u3002\u53ef\u4ee5\u5728\u7528\u6237\u63d0\u4ea4\u524d\u786e\u4fdd\u4ed6\u4eec\u81f3\u5c11\u9009\u62e9\u4e86\u4e00\u4e2a\u9009\u9879\u3002<\/p>\n<\/p>\n
\u5728\u4e0a\u8ff0\u7684submitForm<\/code>\u51fd\u6570\u4e2d\uff0c\u901a\u8fc7\u68c0\u67e5\u662f\u5426\u6709\u4e00\u4e2a\u88ab\u9009\u4e2d\u7684\u5355\u9009\u6309\u94ae\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u5982\u679c\u6ca1\u6709\uff0c\u53ef\u4ee5\u63d0\u793a\u7528\u6237\u9700\u8981\u9009\u62e9\u4e00\u4e2a\u9009\u9879\uff0c\u5982\u679c\u6709\uff0c\u5219\u5904\u7406\u7528\u6237\u7684\u9009\u62e9\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u589e\u5f3a\u7528\u6237\u4f53\u9a8c<\/h3>\n<\/p>\n
\u9664\u4e86\u57fa\u672c\u7684\u529f\u80fd\u4e4b\u5916\uff0c\u53ef\u4ee5\u501f\u52a9JavaScript\u8fdb\u4e00\u6b65\u589e\u5f3a\u5355\u9009\u8868\u5355\u7684\u7528\u6237\u4f53\u9a8c\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u53ef\u80fd\u7684\u6539\u8fdb\uff1a<\/p>\n<\/p>\n
    \n
  • \u52a8\u6001\u66f4\u65b0\u754c\u9762\uff1a<\/strong> \u6839\u636e\u7528\u6237\u9009\u62e9\u52a8\u6001\u66f4\u65b0\u5176\u4ed6\u9875\u9762\u5143\u7d20\uff1b<\/li>\n
  • \u5b9e\u65f6\u9a8c\u8bc1\uff1a<\/strong> \u800c\u4e0d\u662f\u7b49\u5230\u63d0\u4ea4\u65f6\u624d\u9a8c\u8bc1\uff0c\u53ef\u4ee5\u5728\u7528\u6237\u9009\u62e9\u540e\u7acb\u5373\u8fdb\u884c\uff1b<\/li>\n
  • \u65e0\u5237\u65b0\u63d0\u4ea4\uff1a<\/strong> \u4f7f\u7528AJAX\u6280\u672f\u53ef\u4ee5\u5728\u4e0d\u5237\u65b0\u9875\u9762\u7684\u60c5\u51b5\u4e0b\u63d0\u4ea4\u8868\u5355\uff0c\u8fd9\u53ef\u4ee5\u4f7f\u7528\u4e0a\u9762\u63d0\u5230\u7684fetch<\/code>\u51fd\u6570\u6216\u8005XMLHttpRequest<\/code>\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n
    \u5229\u7528JavaScript\uff0c\u53ef\u4ee5\u6784\u5efa\u65e2\u5f3a\u5927\u53c8\u53cb\u597d\u7684\u5355\u9009\u8868\u5355\u3002\u4ee5\u4e0a\u6838\u5fc3\u6b65\u9aa4\u548c\u4ee3\u7801\u793a\u4f8b\uff0c\u63d0\u4f9b\u4e86\u4ece\u6784\u5efa\u8d77\u59cb\u7684\u5355\u9009\u6309\u94ae\u5230\u6700\u7ec8\u7684\u8868\u5355\u63d0\u4ea4\u4e0e\u5904\u7406\u7684\u5b8c\u6574\u6d41\u7a0b\u3002\u901a\u8fc7\u5bf9\u8fd9\u4e2a\u6d41\u7a0b\u7684\u7406\u89e3\uff0c\u53ef\u4ee5\u521b\u5efa\u51fa\u6ee1\u8db3\u5404\u79cd\u573a\u666f\u9700\u6c42\u7684\u5355\u9009\u8868\u5355\uff0c\u5e76\u786e\u4fdd\u8868\u5355\u6570\u636e\u7684\u6b63\u786e\u6027\u548c\u6709\u6548\u6027\u3002<\/p>\n<\/p>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
    \u5982\u4f55\u4f7f\u7528 JavaScript \u521b\u5efa\u5355\u9009\u8868\u5355\uff1f<\/strong><\/p>\n
      \n
    1. \u9996\u5148\uff0c\u5728 HTML \u4e2d\u521b\u5efa\u4e00\u4e2a\u8868\u5355\u5143\u7d20\uff0c\u5e76\u4e3a\u5176\u6dfb\u52a0\u4e00\u4e2a id\uff0c\u4ee5\u4fbf\u5728 JavaScript \u4e2d\u5f15\u7528\u5b83\u3002<\/li>\n
    2. \u4f7f\u7528 JavaScript \u83b7\u53d6\u8868\u5355\u5143\u7d20\u7684\u5f15\u7528\uff0c\u4f8b\u5982\u901a\u8fc7 document.getElementById<\/code> \u65b9\u6cd5\u3002<\/li>\n
    3. \u4f7f\u7528 JavaScript \u521b\u5efa\u5355\u9009\u6309\u94ae\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 document.createElement<\/code> \u65b9\u6cd5\u3002<\/li>\n
    4. \u8bbe\u7f6e\u5355\u9009\u6309\u94ae\u5143\u7d20\u7684\u5c5e\u6027\uff0c\u5305\u62ec type\uff08\u8bbe\u4e3a "radio"\uff09\uff0cname\uff08\u8bbe\u4e3a\u8868\u5355\u7684\u540d\u79f0\uff09\uff0cvalue\uff08\u8bbe\u4e3a\u9009\u9879\u7684\u503c\uff09\u7b49\u3002<\/li>\n
    5. \u5c06\u5355\u9009\u6309\u94ae\u5143\u7d20\u6dfb\u52a0\u5230\u8868\u5355\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 appendChild<\/code> \u65b9\u6cd5\u3002<\/li>\n
    6. \u5728\u9700\u8981\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528 JavaScript \u8bbe\u7f6e\u9ed8\u8ba4\u9009\u4e2d\u7684\u5355\u9009\u6309\u94ae\uff0c\u901a\u8fc7\u4fee\u6539 checked \u5c5e\u6027\u4e3a true\u3002<\/li>\n<\/ol>\n
      \u5982\u4f55\u5728 JavaScript \u4e2d\u5904\u7406\u5355\u9009\u8868\u5355\u7684\u503c\uff1f<\/strong><\/p>\n
        \n
      1. \u83b7\u53d6\u8868\u5355\u5143\u7d20\u7684\u5f15\u7528\uff0c\u901a\u8fc7 document.getElementById<\/code> \u65b9\u6cd5\u3002<\/li>\n
      2. \u4f7f\u7528\u8868\u5355\u5143\u7d20\u7684\u5c5e\u6027\uff0c\u4f8b\u5982 formName.elements<\/code> \u6216 formName.elements[i]<\/code> \u6765\u8bbf\u95ee\u8868\u5355\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n
      3. \u904d\u5386\u6240\u6709\u7684\u5355\u9009\u6309\u94ae\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u6216\u8005 forEach \u65b9\u6cd5\u3002<\/li>\n
      4. \u68c0\u67e5\u6bcf\u4e2a\u5355\u9009\u6309\u94ae\u5143\u7d20\u7684 checked \u5c5e\u6027\u662f\u5426\u4e3a true\uff0c\u4ee5\u786e\u5b9a\u7528\u6237\u9009\u62e9\u7684\u9009\u9879\u3002<\/li>\n
      5. \u6839\u636e\u9700\u8981\uff0c\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6 JavaScript \u65b9\u6cd5\u5bf9\u9009\u62e9\u7684\u9009\u9879\u8fdb\u884c\u5904\u7406\uff0c\u4f8b\u5982\u5c06\u5176\u53d1\u9001\u5230\u670d\u52a1\u5668\u6216\u663e\u793a\u5728\u9875\u9762\u4e0a\u3002<\/li>\n<\/ol>\n
        \u5982\u4f55\u9a8c\u8bc1 JavaScript \u5355\u9009\u8868\u5355\u7684\u9009\u62e9\uff1f<\/strong><\/p>\n
          \n
        1. \u786e\u4fdd\u5728\u63d0\u4ea4\u8868\u5355\u4e4b\u524d\u9a8c\u8bc1\u7528\u6237\u662f\u5426\u8fdb\u884c\u4e86\u5355\u9009\u9009\u62e9\uff0c\u4ee5\u907f\u514d\u7a7a\u503c\u7684\u63d0\u4ea4\u3002<\/li>\n
        2. \u83b7\u53d6\u8868\u5355\u5143\u7d20\u7684\u5f15\u7528\uff0c\u901a\u8fc7 document.getElementById<\/code> \u65b9\u6cd5\u3002<\/li>\n
        3. \u4f7f\u7528\u8868\u5355\u5143\u7d20\u7684\u5c5e\u6027\uff0c\u4f8b\u5982 formName.elements<\/code> \u6216 formName.elements[i]<\/code> \u6765\u8bbf\u95ee\u8868\u5355\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n
        4. \u904d\u5386\u6240\u6709\u7684\u5355\u9009\u6309\u94ae\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u6216\u8005 forEach \u65b9\u6cd5\u3002<\/li>\n
        5. \u68c0\u67e5\u6bcf\u4e2a\u5355\u9009\u6309\u94ae\u5143\u7d20\u7684 checked \u5c5e\u6027\u662f\u5426\u4e3a true\uff0c\u4ee5\u786e\u5b9a\u7528\u6237\u9009\u62e9\u7684\u9009\u9879\u3002<\/li>\n
        6. \u5982\u679c\u6ca1\u6709\u9009\u4e2d\u7684\u9009\u9879\uff0c\u5219\u663e\u793a\u9519\u8bef\u6d88\u606f\u6216\u63d0\u793a\u7528\u6237\u9009\u62e9\u4e00\u4e2a\u9009\u9879\u3002<\/li>\n
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