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面试题,自己写写dome总是好的

2024-04-27 14:11:40
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面试题,自己写写dome总是好的

1、完成如下图所示的布局

 1 <html> 2 <head> 3 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 4 <style type="text/CSS"> 5             body, div{margin: 0;padding: 0;} 6             .fl{float: left; display: inline;} 7             .bc_C{background-color: #CCC;} 8             .h120{height: 120px;} 9             .h250{height: 250px;}10             .w120{width: 120px;}11             .w220{width: 220px;}12             .t0{top:0;}13             .l0{left:130px}14             .t130{top: 130px;}15             .pa{position: absolute;}16             .mr10{margin-right: 10px;}17             .mb10{margin-bottom: 10px;}18             .zi{z-index:-1}19 </style>20 </head>21 <body>22             <div id="div1"class="zi fl bc_C h120 w120 mb10 mr10 pa"><a href="testdiv.html"></a></div>23             <div id="div2"class="zi fl bc_C h250 w220 pa t0 l0"></div>24             <div id="div3"class="zi bc_C h120 w120 t130 pa"></div>25             <script type="text/javascript"src="../js/testdiv.js"></script> 26 </body>27 </html>

2、鼠标移动到div,图片变大为原来的25%

var obj = document.getElementById("div1");    var w=obj.clientWidth;    var h=obj.clientHeight;    obj.onmouSEOver=function(){        w=w*1.25;        h=h*1.25;        this.style.width=w;        this.style.height=h;        this.style.zIndex=1;        this.style.backgroundColor = "red";    };    obj.onmouseout=function(){        w=w/1.25;        h=h/1.25;        this.style.width=w;        this.style.height=h;        this.style.zIndex=-1;        this.style.backgroundColor = "";    };

3、jquery实现removeElement()函数

<body>    <ul>        <li>a</li>        <li>b</li>        <li>c</li>        <li>d</li>    </ul>    <input id="btn"type="button"value="删除元素"></input>    <script type="text/Javascript"src="../js/jquery-1.7.2.js"></script>    <script type="text/javascript"src="../js/removeElement.js"></script></body>
$("#btn").click(function(){        $("ul li:first").remove();    });

4、用javascript实现乱序函数randomSort(array)函数,输出排序后的函数。如[1,2,3,4,5],输出[3,2,4,5,1]。要求100次以内不重复。

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