lovecoding
/
VIP24


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    *{
      margin: 0;
      padding: 0;
    }
    ul{
      list-style: none;
    }
    h2{
      width: 300px;
      height: 50px;
      background: black;
      color: white;
    }
    ul{
      display: none;
    }
  </style>
</head>
<body>
  <div id="container">
    <h2>管理区</h2>
    <ul>
      <li>111</li>
      <li>111</li>
      <li>111</li>
    </ul>
    <h2>交流区</h2>
    <ul>
      <li>456</li>
      <li>456</li>
      <li>456</li>
    </ul>
  </div>
  <script>
    var h2 = document.getElementsByTagName('h2')
    // console.log(h2.nextElementSibling)
    for(var i=0;i<h2.length;i++){
      h2[i].onclick = function(){
        var ul1 = next(this)
        console.log(ul1)
        if(ul1.style.display == 'block'){
          ul1.style.display = 'none'
        } else {
          ul1.style.display = 'block'
        }
      }
    }
    function next(elem){
      do{
        elem = elem.nextSibling
      } while (elem.nodeType != 1)
      return elem
    }
  </script>
</body>
</html>