/// summary>去除HTML标记
///
/// /summary>
/// param name="Htmlstring">包括HTML的源码/param>
/// returns>已经去除后的文字/returns>
public static string GetNoHTMLString(string Htmlstring)
{
//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, @"([\r\n])[\s]+", "", 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\n", "");
Htmlstring = HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
return Htmlstring;
}
/// summary>获取显示的字符串,可显示HTML标签,但把危险的HTML标签过滤,如iframe,script等。
///
/// /summary>
/// param name="str">未处理的字符串/param>
/// returns>/returns>
public static string GetSafeHTMLString(string str)
{
str = Regex.Replace(str, @"applet[^>]*?>.*?/applet>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"body[^>]*?>.*?/body>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"embed[^>]*?>.*?/embed>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"frame[^>]*?>.*?/frame>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"script[^>]*?>.*?/script>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"frameset[^>]*?>.*?/frameset>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"html[^>]*?>.*?/html>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"iframe[^>]*?>.*?/iframe>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"style[^>]*?>.*?/style>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"layer[^>]*?>.*?/layer>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"link[^>]*?>.*?/link>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"ilayer[^>]*?>.*?/ilayer>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"meta[^>]*?>.*?/meta>", "", RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"object[^>]*?>.*?/object>", "", RegexOptions.IgnoreCase);
return str;
}