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用jquery实现双色表格,鼠标移动到上面时,行变色~!

标签:
JQuery

         这里我直接贴上代码,在代码上稍作解释:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
        <title>无标题页</title> 
//导入jquery库文件~!
        <. type="text/." src="../JS/jquery.js"></.>
        <. language =. > 
//html载入完毕后运行$(document).ready()  $(document).ready(function(){ //为类型名为csstab标签的tr子标签添加mouseover 和 mouseout方法,mouseout在mouseover 后执行,addClass和removeClass分别添加类和移除类样式~!
     $(".csstab tr").mouseover(function(){$(this).addClass("over");}).mouseout(function(){$(this).removeClass("over");}) //为偶数tr,添加样式~!
     $(".csstab tr:even").addClass("alt");
        });
        </.>
<style type ="text/css" >
th {
                background:#0066FF;
                color:#FFFFFF;
                line-height:20px;
                height:30px;
}
td {
                padding:6px 11px;
                border-bottom:1px solid #95bce2;
                vertical-align:top;
                text-align:center;
}
    
td * {
                padding:6px 11px;
}
tr.alt td {
                background:#ecf6fc;    /*这行将给所有的tr加上背景色*/
}
    
tr.over td {
                background:#bcd4ec;    /*这个将是鼠标高亮行的背景色*/
                cursor:pointer;
}

</style>
</head>
<body>
        <h1>
                用jquery实现双色表格,鼠标移动到上面时,行变色~!</h1>
        <form id="form1" runat="server">
                <div>
                        <table width =400 class ="csstab" cellspacing =0>
                                <thead>
                                        <tr>
                                                <th>
                                                        姓名</th>
                                                <th>
                                                        年龄</th>
                                                <th>
                                                        性别</th>
                                                <th>
                                                        QQ</th>
                                        </tr>
                                </thead>
                                <tbody>
                                        <tr>
                                                <td>
                                                        opper</td>
                                                <td>
                                                        23</td>
                                                <td>
                                                        男</td>
                                                <td>
                                                        56791700</td>
                                        </tr>
                                        <tr>
                                                <td>
                                                        opper</td>
                                                <td>
                                                        23</td>
                                                <td>
                                                        男</td>
                                                <td>
                                                        56791700</td>
                                        </tr>
                                        <tr>
                                                <td>
                                                        opper</td>
                                                <td>
                                                        23</td>
                                                <td>
                                                        男</td>
                                                <td>
                                                        56791700</td>
                                        </tr>
                                        <tr>
                                                <td>
                                                        opper</td>
                                                <td>
                                                        23</td>
                                                <td>
                                                        男</td>
                                                <td>
                                                        56791700</td>
                                        </tr>
                                        <tr>
                                                <td>
                                                        opper</td>
                                                <td>
                                                        23</td>
                                                <td>
                                                        男</td>
                                                <td>
                                                        56791700</td>
                                        </tr>
                                        <tr>
                                                <td>
                                                        opper</td>
                                                <td>
                                                        23</td>
                                                <td>
                                                        男</td>
                                                <td>
                                                        56791700</td>
                                        </tr>
                                </tbody>
                        </table>
                </div>
        </form>
</body>
</html>
自己可考代码看下运行效果~! 这里有一个jQuery的技巧不得不提一下:jQuery的链式操作,什么是链式操作呢? 我们来看看,本来应该写成这样子的: $(".stripe tr").mouseover(function(){    
                $(this).addClass("over");})    
$(".stripe tr").mouseout(function(){    
                $(this).removeClass("over"); })但是我们写成了: $(".stripe tr").mouseover(function(){    
                         $(this).addClass("over");}).mouseout(function(){    
                                 $(this).removeClass("over");})在jQuery中,执行完mouseover或者mouseout等方法之后,都会返回当前的对象,所以可以进行链式操作

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