public string StripHT(string strHtml) //从html中提取纯文本
{
Regex regex = new Regex("<.+?>", RegexOptions.IgnoreCase);
string strOutput = regex.Replace(strHtml, "");//替换掉"<"和">"之间的内容
strOutput = strOutput.Replace("<", "");
strOutput = strOutput.Replace(">", "");
strOutput = strOutput.Replace("&nbsp;", "");
return strOutput;
}