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Javascript 选项卡

2024-07-07 01:22:19   229人阅读

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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <style type="text/css">
        #div1 .active
        {
            background: yellow;
        }
 
        #div1 div
        {
            width: 200px;
            height: 200px;
            background: #808080;
            border: 1px solid #f00;
            display: none;
        }
    </style>
    <script type="text/javascript">
        window.onload = function () {
            var oDiv = document.getElementById("div1");
            var aBtn = oDiv.getElementsByTagName("input");
            var aDiv = oDiv.getElementsByTagName("div");
 
            for (var i = 0; i < aBtn.length; i++) {
                //给每一个按钮增加一个Index属性
                aBtn[i].index = i;
                //给按钮增加事件
                aBtn[i].onclick = function () {
                    //先把所有的btn的class改成无
                    for (var j = 0; j < aBtn.length; j++) {
                        aBtn[j].className = ‘‘;
                        aDiv[i].style.display = ‘none‘;
                    }
                    //当前点击的按钮是this
                    this.className = "active";
                    alert(this.index);
                    //aDiv[this.index].style.display = ‘block‘;
                }
            }
        }
    </script>
</head>
<body>
    <div id="div1">
        <input type="button" class="active" value=http://www.mamicode.com/"教育" />
        <input type="button" value=http://www.mamicode.com/"培训" />
        <input type="button" value=http://www.mamicode.com/"招生" />
        <input type="button" value=http://www.mamicode.com/"出国" />
        <div style="display: block">11111111</div>
        <div>22222222</div>
        <div>33333333</div>
        <div>44444444</div>
    </div>
</body>
</html>

　　


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