1.分别是替换a标签为空
<a([^>]*)>[|]
</a>[|]
2.替换script
<script([^>]*)>(.*)</script>[|]
3.替换div
<div([^>]*)>[|]
</div>[|]
4.替换P标签
<p([^>]*)>[|]
</p>[|]
5.替换iframe
<iframe([^>]*)>(.*)</iframe>[|]
6.
<object([^>]*)>(.*)</object>[|]
<embed([^>]*)>(.*)</embed>[|]
<param([^>]*)>(.*)</param>[|]
7.注释
<!--([^>]*)-->[|]