完整测试代码
<script> var str='<p>'; str='<table id="tblSort" cellspacing="0" helvetica="" sans=""><tr id="sdf"><td style="color:red" class="ok" colspan="8" height="500" rowspan="5">'; str+='<td style = "color:blue" style="color:blue" colspan="8" style="color:red" rowspan="5">'; str+='<td id="asdfj" class="dbclick"><span id="s159015" class="p_check"><a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >GET</a> <a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >PING</a> <a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Trace</a> <a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Dig</a></span></td>'; str+='<td class="sdf" colspan="8" style="color:red" rowspan="5"><p style="color:red">jb51.net</p></td>'; str+='<td class="sdf" colspan="8" style="color:red" rowspan="5" width="100"></td></tr></table>'; str+='<table><tr style = "color:bluefffffffffffffffffffffffffffffffffffffffffff"><td style="color:green" class="ok" colspan="8" height="500" rowspan="5">'; str+='<tr id="trinfo146798" class="alt"> <td id="tdinfo146798" colspan="16"></td> </tr>'; str+='<td id="asdfj" class="dbclick"><span id="s159015" class="p_check"><a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >GET</a> <a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >PING</a> <a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Trace</a> <a style="text-decoration: none; color: rgb(0,136,255)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Dig</a></span></td>'; str+='<td class="sdf" colspan="8" style="color:red" rowspan="5"><p style="color:red">jb51.net</p></td>'; str+='<td class="sdf" colspan="8" style="color:red" rowspan="5" width="100"> <font color="#0f0000">122.227.189.106 [中国浙江宁波电信]</font><br /></td></tr></table>'; str+='<p><img alt="" src="/UploadFiles/2021-04-02/2020041112113912.png">//普通替换 function doRepNormal(s){ var str=s.replace(/<p><br type="_moz">\s*""); str=str.replace(/<p>\s*"_moz">\s*""); str=str.replace(/<p>(\s|\ \;| | |\xc2\xa0)*""); str=str.replace(/<p>\s*""); str=str.replace(/<p> <\/p>/ig,""); str=str.replace(/<br type="_moz">\n <\/p>/ig, "</p>"); str=str.replace(/<br type="_moz">\s*"</p>"); str=str.replace(/<br\s*"</p>"); str=str.replace(/<br \/>\n <\/p>/ig, "</p>"); str=str.replace(/<br>\n <\/p>/ig, "</p>"); //表格替换 str=str.replace(/<table[^>]*>/ig, "<table>"); str=str.replace(/<table[^>]*>[\s\S]*"|')[^<>"']*"|')[^<>"']*"|')[^<>"']*"|')[^<>"']*"|')[^<>"']*"|')[^<>"']*"htmlcode">str=str.replace(/<table[^>]*>/ig, "<table>"); str=str.replace(/<table[^>]*>[\s\S]*"|')[^<>"']*"htmlcode"><table width="300" border="1" cellspacing="0" cellpadding="0"> <tr> <td> </td> <td><table width="100%" border="1" cellspacing="0" cellpadding="0"> <tr> <td> </td> </tr> </table> <table width="100%" border="1" cellspacing="0" cellpadding="0"> <tr> <td> </td> </tr> </table></td> <td> </td> </tr> <tr> <td> </td> <td> </td> <td><table width="100%" border="1" cellspacing="0" cellpadding="0"> <tr> <td> </td> </tr> </table></td> </tr> <tr> <td><table width="100%" border="1" cellspacing="0" cellpadding="0"> <tr> <td> </td> </tr> </table></td> <td> </td> <td> </td> </tr> </table>-------------------获取3个match
============================================match1
<tr>
<td> </td>
<td><table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td> </td>
</tr></table>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td> </td>
</tr>
</table></td>
<td> </td>
</tr>
==============================================match2
<tr>
<td> </td>
<td> </td>
<td><table width="100%" border="1" cellspacing="0" cellpadding="0"><tr>
<td> </td>
</tr>
</table></td>
</tr>
==============================================match3
<tr>
<td><table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td> </td>
</tr></table></td>
<td> </td>
<td> </td>
</tr>正则表达式匹配html标签table
首先，要匹配任意内容“.”是不行的，因为不匹配“\n”，取不到想要的内容，所以有了如下表达式：
[\s\S]*当然，你也可以用 “[\d\D]*”、“[\w\W]*” 来表示。
现在我们来匹配一个html标签，匹配table如下：
<table.*""和一个却不加“"htmlcode">
<script> var str='<table>这是第一个table</table>'; str+='我不是table里的内容'; str+='<table>这是第二个table</table>'; str+='我也不是table里的内容'; str+='<table>这是第三个table</table>'; var reg1 = /<table.*"" src="/UploadFiles/2021-04-02/20200411131759.png">以上就是正则表达式替换table表格中的样式与空标记(保留rowspan与colspan)的详细内容，更多关于正则表达式替换table表格的资料请关注其它相关文章！
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