用jQuery获取table中行id和td值

<%@ page language="java" pageEncoding="UTF-8"%>
<%
    String path = request.getContextPath();
%>
<!DOCTYPE html>
<html lang="zh-cn">
    <head>
        <title>点击</title>
        <meta content="IE=edge" http-equiv="X-UA-Compatible">
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <meta http-equiv="Content-Language" content="zh-cn" />
        <meta name="author" content="[email protected]" />
        <meta name="Copyright" content="parami|厦门波罗密网络科技有限公司" />

        <meta http-equiv="pragma" content="no-cache">
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="expires" content="0">

        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="This is my page">
        <jsp:include page="/demo/base/js_bootstrap.jsp" />
        <script type="text/javascript">
        $(function(){
            //用jQuery获取table中td值
            $("#mytable td").click(function(){
                alert("table td值:"+$(this).text());
            });
            
            //jQuery获取table中点击位置所在行的id
            $("#mytable td").click(function() {
                //td的id 
                alert($(this).attr("id"));
                //tr的id  
                alert($(this).parent().attr("id"));
            });
        });
        </script>
    </head>
    <body>
    <table id="mytable" width="708px;" cellpadding="5" cellspacing="1">
        <tbody>
            <tr bgcolor="#DEE9F4" id="tr_1">
                <td align="center"> 日</td>
                <td align="center"> 一 </td>
                <td align="center"> 二 </td>
                <td align="center"> 三 </td>
                <td align="center"> 四 </td>
                <td align="center"> 五 </td>
                <td align="center"> 六 </td>
            </tr>
            <tr bgcolor="#DEE9F4" id="tr_2">
                <td align="center"> &nbsp; </td>
                <td align="center"> &nbsp; </td>
                <td align="center"> &nbsp; </td>
                <td align="center"> 1 </td>
                <td align="center"> 2 </td>
                <td align="center"> 3 </td>
                <td align="center"> 4</td>
            </tr>
            <tr bgcolor="#DEE9F4" id="tr_3">
                <td align="center"> 5 </td>
                <td align="center"> 6 </td>
                <td align="center"> 7 </td>
                <td align="center"> 8 </td>
                <td align="center"> 9 </td>
                <td align="center" bgcolor="red">10</td>
                <td align="center">11</td>
            </tr>
            <tr bgcolor="#DEE9F4" id="tr_4">
                <td align="center"> 12 </td>
                <td align="center"> 13 </td>
                <td align="center"> 14 </td>
                <td align="center"> 15 </td>
                <td align="center"> 16  </td>
                <td align="center"> 17 </td>
                <td align="center"> 18 </td>
            </tr>
        </tbody>
    </table>    
    </body>
</html>

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