Asp.Net正则过滤一个div

Asp.Net过滤一对标签，例如div、ul、p、li、span等

html = “html page”; Regex regPage = new Regex(@"(?is)<div\sclass=""pages"">((?<Open><div>)|(?<-Open></div>)|.*?)*?(?(Open)(?!))</div>", RegexOptions.IgnoreCase); html = regPage.Replace(html, "");