C# 替换去除HTML标记方法(正则表达式)

[from] http://blog.csdn.net/sgear/article/details/6263848
/// <summary>
/// 将所有HTML标签替换成""
/// </summary>
/// <param name="strHtml"></param>
/// <returns></returns>
public static string StripHTML(string strHtml)
{
string[] aryReg ={
@"<script[^>]*?>.*?</script>",
@"<(///s*)?!?((/w+:)?/w+)(/w+(/s*=?/s*(([""'])(file://[""'tbnr]|[^/7])*?/7|/w+)|.{0})|/s)*?(///s*)?>",
@"([/r/n])[/s]+",
@"&(quot|#34);",
@"&(amp|#38);",
@"&(lt|#60);",
@"&(gt|#62);",
@"&(nbsp|#160);",
@"&(iexcl|#161);",
@"&(cent|#162);",
@"&(pound|#163);",
@"&(copy|#169);",
@"&#(/d+);",
@"-->",
@"<!--.*/n" 

}; 

string[] aryRep = {
"",
"",
"",
"/"",
"&",
"<",
">",
" ",
"/xa1",//chr(161),
"/xa2",//chr(162),
"/xa3",//chr(163),
"/xa9",//chr(169),
"",
"/r/n",
""
}; 

string newReg = aryReg[];
string strOutput = strHtml;
for (int i = ; i < aryReg.Length; i++)
{
Regex regex = new Regex(aryReg[i], RegexOptions.IgnoreCase);
strOutput = regex.Replace(strOutput, aryRep[i]);
} 

strOutput.Replace("<", "");
strOutput.Replace(">", "");
strOutput.Replace("/r/n", ""); 

return strOutput;
}