jQuery实现隔行变色

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>选择器实现各行变色</title>
    <link href="../../CSS/2-2.css" rel="stylesheet" />
    <script src="../../JQuery/jquery-1.4.2.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $("#tbStu tr:nth-child(even)").addClass("trOdd");
        })
    </script>
</head>
<body>
<table id="tbStu">
  <tbody>
    <tr>
      <th>学号</th><th>姓名</th><th>性别</th><th>总分</th>
    </tr>

    <tr>
      <td>1001</td><td>张小明</td><td>男</td><td>320</td>
    </tr>

    <tr>
      <td>1002</td><td>李明琪</td><td>女</td><td>350</td>
    </tr>
   
  </tbody>
</table>
</body>
</html>

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