tab栏切换 

<!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>
    body {
      margin: 0;
      padding: 0;
    }

    ul {
      display: flex;
      justify-content: space-around;
      align-items: center;
      border: 2px solid red;
      list-style: none;
    }

    ul>li {
      width: 100%;
      text-align: center;
      border-right: 2px solid red;
      cursor: pointer;
    }

    ul>li:last-child {
      border-right: 0;
    }

    .active {
      background-color: #ccc;
    }

    div>p {
      display: none;
    }

    .currenty {
      display: block;
    }
  </style>
</head>

<body>
  <ul>
    <li class="active">1</li>
    <li>2</li>
    <li>3</li>
    <li>4</li>
  </ul>
  <div>
    <p class="currenty">11</p>
    <p>22</p>
    <p>33</p>
    <p>44</p>
  </div>
  <script>
    let aLi = document.querySelectorAll('li')
    let aP = document.querySelectorAll('p')
    let index = 0;
    for (var i = 0; i < aLi.length; i++) {
      (function(i){
        aLi[i].onclick=function(){
          aLi[index].className = ''
          aP[index].className = ''
          index = i
          aLi[index].className = 'active'
          aP[index].className = 'currenty'
        }
      })(i)
    }
  </script>
</body>

</html>

　　

posted @ 2021-02-10 17:43  流弊的小涛  阅读(62)  评论(0)    收藏  举报