<table>
<tr>
<td id="abc">
<a href="xxx.htm">1</a>
<a href="xxx.htm">2</a>
<a href="xxx.htm">3</a>
<a href="xxx.htm">4</a>
</td>
<td>
<a href="xxx.htm">1</a>
<a href="xxx.htm">2</a>
<a href="xxx.htm">3</a>
<a href="xxx.htm">4</a>
</td>
</tr>
</table>
<Script defer>
alert(document.getElementById("abc").getElementsByTagName("A").length);
</Script>
解决方案 »
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