Cara melaksanakan berbilang tab dalam javascript dengan mendapatkan kemahiran class_javascript atribut tag html-tutorial js-php.cn

Cara melaksanakan berbilang tab dalam javascript dengan mendapatkan kemahiran class_javascript atribut tag html

WBOY

Lepaskan： 2016-05-16 15:48:57

asal

1335 orang telah melayarinya

Contoh dalam artikel ini menerangkan cara javascript melaksanakan berbilang tab dengan mendapatkan kelas atribut teg html. Kongsikan dengan semua orang untuk rujukan anda. Kaedah pelaksanaan khusus adalah seperti berikut:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>原生javascript通过获取html标签属性class实现多选项卡</title>
    <style type="text/css">
      .tab {
        clear: both;
        margin: 20px auto;
        padding: 10px;
        width: 680px;
        overflow: hidden;
      }
      .tab .tab-menu {
        margin: 0;
        padding: 0;
        list-style: none;
      }
      .tab .tab-menu li {
        display: inline;
        margin: 0 2px 0 0;
      }      
      .tab .tab-menu li a {
        padding: 0 1em;
        text-decoration: none;
        color: #a80;
        background: #fe5;
      }
      .tab .tab-menu li a:hover {
        background: #fc0;
        color: #540;
      }
      .tab .tab-menu .active {
      }
      .tab .tab-menu .active a {
        padding-bottom: 2px;
        font-weight: bold;
        color: black;
        background: #fc0;
      }
      .tab .tab-panel {
        padding: 1em;
        border: 2px solid #fc0;
        background: #fff;
      }
      .tab .tab-panel h2 {
        font-size: 1.5em;
        color: #fc0;
      }
      .tab .tab-none {
        display: none;
      }
    </style>
    <script type="text/javascript">      
      function Tab(style, scope){
        this.oItem = this.getByClass(style, scope);
        this.init();
      }
      Tab.prototype = {
        init: function(){
          var that = this, menu, m;
          for(var i = 0, len = this.oItem.length; i < len; i++){
            menu = this.oItem[i].getElementsByTagName('li');
            for(var j = 0, mLen = menu.length; j < mLen; j++){
              m = menu[j];
              m.index = j;
              m.onmouseover = function(){that.focus(this);}
            }
          }
        },
        focus: function(o){
          var par = o.parentNode.parentNode, panel = par.getElementsByTagName('div'), 
            btn = par.getElementsByTagName('li'), len = btn.length;
          for(var i = 0; i < len; i++){
            btn[i].className = '';
            panel[i].className = this.changeClass(panel[i].className, 'tab-none', true);
          }
          o.className = 'active';
          panel[o.index].className = this.changeClass(panel[o.index].className, 'tab-none', false);
        },
        changeClass: function(cl, cl2, add){
          var flag;
          if(cl.match(cl2) != null) flag = true;
          if(add ^ flag) return flag &#63; cl.replace(cl2, '') : cl += ' ' + cl2;
          return cl;
        },
        getByClass: function(cla, obj){
          var obj = obj || document, arr = [];
          if(document.getElementsByClassName){
            return document.getElementsByClassName(cla);
          } else {
            var all = obj.getElementsByTagName('*');
            for(var i = 0, len = all.length; i < len; i++){
              if(all[i].className.match(cla) != null) arr.push(all[i]);
            }
            return arr;
          }
        }
      }
      window.onload = function(){
        new Tab('tab-menu', null);
      }
    </script>
  </head>
  <body>
    <div class="tab">
      <ul class="tab-menu">
        <li class="active"><a href="">111</a></li>
        <li><a href="">122</a></li>
        <li><a href="">133</a></li>
      </ul>
      <div class="tab-panel">
        111
      </div>
      <div class="tab-panel tab-none">
        122
      </div>
      <div class="tab-panel tab-none">
        133
      </div>
    </div>
    <div class="tab">
      <ul class="tab-menu">
        <li class="active"><a href="">211</a></li>
        <li><a href="">222</a></li>
        <li><a href="">233</a></li>
      </ul>
      <div class="tab-panel">
        211
      </div>
      <div class="tab-panel tab-none">
        222
      </div>
      <div class="tab-panel tab-none">
        233
      </div>
    </div>
    <div class="tab">
      <ul class="tab-menu">
        <li class="active"><a href="">311</a></li>
        <li><a href="">322</a></li>
        <li><a href="">333</a></li>
      </ul>
      <div class="tab-panel">
        311
      </div>
      <div class="tab-panel tab-none">
        322
      </div>
      <div class="tab-panel tab-none">
        333
      </div>
    </div>
  </body>
</html>

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Saya harap artikel ini akan membantu reka bentuk pengaturcaraan JavaScript semua orang.