练习案例_鼠标经过表格行变色

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>鼠标经过表格行变色</title>
    <style type="text/css">

        td{
            border-bottom: 1px solid lightgray;
            width: 100px;
            height: 25px;
        }
        .firstTd{
            width: 30px;
        }
    </style>
    <script type="text/javascript" src="jquery-1.8.3.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){

            //选中table下面的除了第一行外所有的行
            $("#mailTable tr:not(:eq(0))").mouseenter(function(){
                this.style.backgroundColor="lightgray";
            }).mouseout(function () {
                this.style.backgroundColor="";
            });
        });
    </script>
</head>
<body>


<table id="mailTable" border="0" cellpadding="0" cellspacing="0" style="width: 600px">

    <tr><td class="firstTd"></td><td>收件人</td><td>主题</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>

</table>
</body>
</html>

 

 

 

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title></title>
    <style type="text/css">
        td{
            border-bottom: 1px solid lightgray;
            width: 100px;
            height: 25px;
        }
        .firstTd{
            width: 30px;
        }
    </style>
    <script type="text/javascript">


        window.onload=function(){

            var table = document.getElementById("mailTable");

            var trs = table.getElementsByTagName("tr");
            for(var i=1;i<trs.length;i++){

                var tr = trs.item(i);

                //鼠标进入事件
                tr.onmouseover=function(){

                    this.style.backgroundColor="lightgray";

                }

                //
                tr.onmouseout=function(){

                    this.style.backgroundColor=null;

                }
            }
        }

    </script>
</head>
<body>
    <table id="mailTable" border="0" cellpadding="0" cellspacing="0" style="width: 600px">
        <tr><td class="firstTd"></td><td>收件人</td><td>主题</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
        <tr><td class="firstTd"><input type="checkbox" name="mail" /></td><td>蛋蛋</td><td>。。。</td></tr>
    </table>
</body>
</html>

 

posted @ 2016-06-09 17:36  linyongqin  阅读(129)  评论(0)    收藏  举报