jquery遍历table

<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <script src="js/jquery-1.11.3.min.js"></script>
</head>
<body>
<table id="tb">
    <tr id="1">
        <td class="name">akon</td>
        <td class="phone">111111</td>
    </tr>
    <tr id="2">
        <td class="name">john</td>
        <td class="phone">222222</td>
    </tr>
    <tr id="3">
        <td class="name">tom</td>
        <td class="phone">333333</td>
    </tr>
</table>

<script>
    var trList = $("#tb").find("tr");
    for(var i=0; i<trList.length; i++) {
        alert($(trList[i]).children(".name").text());
    }
</script>
</body>
</html>

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