jQuery学习笔记之基础中的基础

利用jquery实现

<script type=”text/javascript”>
            $(function(){
                $(“table#mytable tr:nth-child(odd)”).addClass(“altcss”);
            })
        </script>

表格区域代码

<table width=”800″ cellspacing=”0″ border=”1″ id=”mytable”>
            <tr>
                <td> </td>
                <td> </td>
                <td> </td>
            </tr>
            <tr>
                <td> </td>
                <td> </td>
                <td> </td>
            </tr>
            <tr>
                <td> </td>
                <td> </td>
                <td> </td>
            </tr>
            <tr>
                <td> </td>
                <td> </td>
                <td> </td>
            </tr>
            <tr>
                <td> </td>
                <td> </td>