C#过滤HTML代码

ReadyGo!技术成就梦想网络搜索 efish 2008-8-2 23:35:20

　　 public string NoHTML(string Htmlstring)

//去除HTML标记

{

//删除脚本

Htmlstring = Regex.Replace(Htmlstring,@"<script*?>.*?</script>","",RegexOptions.IgnoreCase);

//删除HTML

Htmlstring = Regex.Replace(Htmlstring,@"<(.*)>","",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"()+","",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"-->","",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"<!--.*","",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(quot|#34);","\"",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(amp|#38);","&",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(lt|#60);","<",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(gt|#62);",">",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(nbsp|#160);"," ",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(iexcl|#161);","\xa1",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(cent|#162);","\xa2",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(pound|#163);","\xa3",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&(copy|#169);","\xa9",RegexOptions.IgnoreCase);

Htmlstring = Regex.Replace(Htmlstring,@"&#(\d+);","",RegexOptions.IgnoreCase);

Htmlstring.Replace("<","");

Htmlstring.Replace(">","");

Htmlstring.Replace("\r","");

Htmlstring=HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();

return Htmlstring;

}

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