.net去掉HTML标记

 1 using System.Text.RegularExpressions;
 2
 3 /// <summary>
 4
 5   /// 去除HTML标记
 6
 7   /// </summary>
 8
 9   /// <param name="DeleteHTML">包括HTML的源码 </param>
10
11   /// <returns>已经去除Html标签后的文字</returns>
12
13   public static string  DeleteHTML(string Htmlstring)
14
15   {
16
17    //删除脚本
18
19    Htmlstring = Regex.Replace(Htmlstring,@"<script[^>]*?>.*?</script>","",RegexOptions.IgnoreCase);
20
21    //删除HTML
22
23    Htmlstring = Regex.Replace(Htmlstring,@"<(.[^>]*)>","",RegexOptions.IgnoreCase);
24
25    Htmlstring = Regex.Replace(Htmlstring,@"([\r\n])[\s]+","",RegexOptions.IgnoreCase);
26
27    Htmlstring = Regex.Replace(Htmlstring,@"-->","",RegexOptions.IgnoreCase);
28
29    Htmlstring = Regex.Replace(Htmlstring,@"<!--.*","",RegexOptions.IgnoreCase);
30
31
32
33    Htmlstring = Regex.Replace(Htmlstring,@"&(quot|#34);","\"",RegexOptions.IgnoreCase);
34
35    Htmlstring = Regex.Replace(Htmlstring,@"&(amp|#38);","&",RegexOptions.IgnoreCase);
36
37    Htmlstring = Regex.Replace(Htmlstring,@"&(lt|#60);","<",RegexOptions.IgnoreCase);
38
39    Htmlstring = Regex.Replace(Htmlstring,@"&(gt|#62);",">",RegexOptions.IgnoreCase);
40
41    Htmlstring = Regex.Replace(Htmlstring,@"&(nbsp|#160);"," ",RegexOptions.IgnoreCase);
42
43    Htmlstring = Regex.Replace(Htmlstring,@"&(iexcl|#161);","\xa1",RegexOptions.IgnoreCase);
44
45    Htmlstring = Regex.Replace(Htmlstring,@"&(cent|#162);","\xa2",RegexOptions.IgnoreCase);
46
47    Htmlstring = Regex.Replace(Htmlstring,@"&(pound|#163);","\xa3",RegexOptions.IgnoreCase);
48
49    Htmlstring = Regex.Replace(Htmlstring,@"&(copy|#169);","\xa9",RegexOptions.IgnoreCase);
50
51    Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);","",RegexOptions.IgnoreCase);
52
53    Htmlstring.Replace("<","");
54
55    Htmlstring.Replace(">","");
56
57    Htmlstring.Replace("\r\n","");
58
59    Htmlstring=HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
60
61    return Htmlstring;
62
63   }