lovecoding
/
class


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            list-style: none;
            text-decoration: none;
            box-sizing: border-box;
        }
        #container {
            width: 482px;
            margin: 200px auto;
            border: 1px solid #000;
        }
        #list {
            overflow: hidden;

        }
        #list li{
            width: 120px;
            float: left;
            height: 50px;
            text-align: center;
            line-height: 50px;
            border: 1px solid #000;
        }
        .selected {
            color: #f00;
            background-color: #ff0;
        }
        .active {
            width: 480px;
            height: 300px;
            text-align: center;
            line-height: 300px;
            border:1px solid #eee;
            display: none;
        }
        .choise {
            display: block;
        }
    </style>
</head>
<body>
    <div id="container">
        <ul id="list">
            <li class="selected">用户管理</li>
            <li>配置管理</li>
            <li>角色管理</li>
            <li>定时任务补偿</li>
        </ul>
        <ul id="contain">
            <li class="active choise">用户管理</li>
            <li class="active">配置管理</li>
            <li class="active">角色管理</li>
            <li class="active">定时任务补偿</li>
        </ul>
    </div>
    <script>
        var list = document.querySelectorAll("#list li");
        var contain = document.querySelectorAll("#contain li");
        for(var i=0;i<list.length;i++) {
            // list[i] 每一个按钮
            list[i].index = i;
            // this在点击事件时 指代当前对象
            list[i].onclick = function() {
                for(var j=0;j<contain.length;j++) {
                    list[j].className = "";
                    contain[j].className = "active"
                }
                this.className = "selected";
                contain[this.index].className = "active choise";
            }
        }
    </script>
</body>
</html>