console 命令行工具 X clear
console
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue项目</title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="http://static.runoob.com/assets/vue/1.0.11/vue.min.js"></script>
<style>
    #list{
        winth:600px;
        height:50px;
    }
    #list li{
        width:100px;
        height:50;
        margin:0 5px;
        background:red;
        float:left;
        list-style:none;
        text-align:center;
        line-height:50px;
    }
    div.content{
        width:200px;
        height:200px;
        background:yellow;
        display:none;
    }
</style>
</head>
<body>
<div id="app_head">
  <ul id='list'>
    <li v-for="i in todos" v-on:click="fn1($index)" index='{{$index}}'>{{i.text}}</li>
  </ul>
  <div class='content' v-for="i in todos">{{i.text}}</div>
</div>
<script>
    new Vue({
        el:'#app_head',//元素
        data:{//数据
            todos: [
              { text: '首页' },
              { text: '新闻资讯' },
              { text: '产品展示' },
              { text: '关于我们' },
              { text: '联系我们' }
            ],
            fn1:function($index){
                $('.content').css('display','none');
                $('.content').eq($index).css('display','block');
            }
        }
    });
    
    $('.content').eq(0).css('display','block');
    
    
</script>
</body>
</html>