获取当前td在tr中的索引

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<html>
<body>
<table>
<tr>
<td id="a">1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
</table>
<body>
<script src='http://172.29.5.201/assets/js/core/jquery.min.js'></script>
<script>
alert($("#a").index());</script>
</html>

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转载自blog.csdn.net/a944750471/article/details/80620674
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