用原生或jQuery实现tab栏切换

效果图展示

html部分

<div id="wrap">
    <ul id="oLi" class="card_List clearfix">
      <li class="current">栏目1</li>
      <li>栏目2</li>
      <li>栏目3</li>
      <li>栏目4</li>
    </ul>
    <!-- 下拉框 -->
    <div id="oUl" class="card_content">
      <div style="display:block;">
        11111111111111
      </div>
      <div>
        22222222222
      </div>
      <div>
        3333333333333
      </div>
      <div>
        44444444444444444
      </div>
    </div>
  </div>

css部分

  * {
    margin: 0;
    padding: 0;
  }
  body {
    font: 12px/20px 'microsoft yahei', 'arial';
    word-break: break-all;
    word-wrap: break-word;
  }
  /* 清除浮动 */
  .clearfix:after {
    content: '.';
    display: block;
    clear: both;
    height: 0;
    visibility: hidden;
  }
  .clearfix {
    display: inline-block;
  }
  * html .clearfix {
    height: 1%;
  }
  .clearfix {
    display: block;
  }
  #wrap {
    width: 320px;
    margin: 2em auto;
  }
  .card_List {
    height: 30px;
    border-bottom: 1px solid #f00;
    position: relative;
  }
  .card_List li {
    float: left;
    width: 68px;
    text-align: center;
    height: 30px;
    line-height: 30px;
    margin: 0 5px;
    display: inline;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
  }
  /* 样式操作 */
  .card_List li.current {
    height: 34px;
    line-height: 34px;
    margin-top: -4px;
    border: 1px solid #F00;
    background: #FF9494;
    border-bottom: none;
    color: #fff;
  }
  /* tab栏四个不同背景色 */
  #oLi li:nth-child(1){
    background: #FF9494;
  }
  #oLi li:nth-child(2){
    background: #8CFE8C;
  }
  #oLi li:nth-child(3){
    background: #6969FB;
  }
  #oLi li:nth-child(4){
    background: #FFE26F;
  }
  .card_content div {
    display: none;
    height: 100px;
    text-align: center;
    color: white;
  }
  .card_content div:first-child {
    background: #FF9494;
  }

js逻辑

window.onload = function () {
    var colorArr = {
      0:"#f00",
      1:"#0f0",
      2:"#00f",
      3:"#FC0"
    };
    var bgColorArr = {
      0:"#FF9494",
      1:"#8CFE8C",
      2:"#6969FB",
      3:"#FFE26F",
    }
    // 获取元素
    var oL = document.getElementById("oLi");
    var oLi = oL.getElementsByTagName("li");
    var oUl = document.getElementById("oUl").getElementsByTagName("div");
    // 循环下拉框内容
    for ( var i=0 ; i<oLi.length ; i++ ){
      // 当前项的索引
      oLi[i].index = i;
      // 点击事件
      oLi[i].onclick = function () {
        // 排他思想
        // 干掉所有人
        for ( var j = 0 ; j < oLi.length ; j++ ){
          oLi[j].className = "";
          oLi[j].style.border = "none";
        }
        // 留下我自己 添加当前的类名
        this.className = "current";
        // 当前边框颜色
        this.style.border = "1px solid " + colorArr[this.index];
        this.style.borderBottom = "none";
        oL.style.borderBottom = "1px solid " + colorArr[this.index];
        for ( var j=0 ; j < oUl.length ; j++ ){
          oUl[j].style.display = "none";
          oUl[this.index].style.display = "block";
          oUl[j].style.backgroundColor = bgColorArr[this.index];
        }
      };
    }
  };