Cómo filtrar el código HTML, JS, CSS

以下为引用的内容 ：

#region /// 过滤 Html, JS, CSS 代码

/// <summary>

/// 过滤 HTML, JS, CSS 代码

/// </summary>

/// <paramname = "html"> 参数传入 </param>

/// <mirante> </return>

PublicStaticstringCheckstr (StringHtml)

{

System.text.regularexpressions.regexregex1 = Newsystem.text.regularexpressions.regex (@"<script [/s/s]+</script*>", system.text.regulareRexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex2 = Newsystem.text.regularexpressions.regex (@"href*=*[/s/s/s]*script*:", system.text.regularexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex3 = Newsystem.text.regularexpressions.regex (@"no [/s/s]*=", system.text.regularexpressions.regexoptions.ignorecase);

System.text.regulareExpressions.regexregex4 = Newsystem.text.regularexpressions.regex (@"<iframe [/s/s]+</iframe*>", system.text.regularexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex5 = Newsystem.text.regularexpressions.regex (@"<frameset [/s/s]+</frameset*>", system.text.regularexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex6 = Newsystem.text.regularexpressions.regex (@"/<img [^/>]+/>", system.text.regulareRexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex7 = Newsystem.text.regulareRexpressions.regex (@"</p>", system.text.regulareRexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex8 = Newsystem.Text.regulareRexpressions.regex (@"<p>", System.Text.regularexpressions.regexoptions.ignorecase);

System.text.regularexpressions.regexregex9 = Newsystem.text.regularexpressions.regex (@"<[^>]*>", system.text.regularexpressions.regexoptions.ignorecase);

html = regex1.replace (html, ""); // 过滤 <script> </script> 标记

html = regex2.replace (html, ""); // 过滤 href = javascript :( <a>) 属性

html = regex3.replace (html, "_ disiBllevent ="); // 过滤其它控件的 en ... 事件

html = regex4.replace (html, ""); // 过滤 iframe

html = regex5.replace (html, ""); // 过滤 Frameset

html = regex6.replace (html, ""); // 过滤 Frameset

html = regex7.replace (html, ""); // 过滤 Frameset

html = regex8.replace (html, ""); // 过滤 Frameset

html = regex9.replace (html, "");

html = html.replace ("", "");

html = html.replace ("</strong>", "");

html = html.replace ("<strong>", "");

returnhtml;

}

#Endregion

#región /// 过滤 P/P 代码

/// <summary>

/// 过滤 P/P 代码

/// </summary>

/// <paramname = "html"> 参数传入 </param>

/// <mirante> </return>

PublicStaticstringInputstr (StringHtml)

{

html = html.replace (@"/<img [^/>]+/>", "");

html = html.replace (@"<p>", "");

html = html.replace (@"</p>", "");

returnhtml;

}

#Endregion

/// <summary>

/// 截取字符串

/// </summary>

/// <paramname = "str"> </param>

/// <paramname = "longitud"> </param>

/// <mirante> </return>

ProtectedStringgetLength (Stringstr, intLength)

{

StringStrr = str;

if (str.length> longitud)

{

strr = str.substring (0, longitud)+"...";

}

returnstrr;

}