字符过滤（SQL字符过滤、HTML字符过滤、HTML to JS转代码,CSharp代码库,德仔网

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【CSharp】字符过滤（SQL字符过滤、HTML字符过滤、HTML to JS转

作者:Gordon / 发布于2014/11/3/ 530


	 /// <summary>

	 /// 字符过滤

	 /// </summary>

	 /// <param name="str">传入的字符</param>

	 /// <param name="mode">过滤模式</param>

	 /// <example>Fil<wbr />ter("<b>b</b>>hfghfgh", "HTML")</example>

	 /// <returns>过滤后的字符串</returns>

	 public static string Fil<wbr />ter(string str, string mode)

	 {

	 mode = mode.ToLower();

	 switch (mode)

	 {

	 case "html" :

	 str = str.Replace("\r\n", "\n");

	 str = str.Replace("'", "'");

	 str = str.Replace("\"", "&#34;");

	 str = str.Replace("<", "&#60;");

	 str = str.Replace(">", "&#62;");

	 str = str.Replace("\n", "");

	 break;

	 case "nohtml":

	 str = Regex.Replace(str, "<[^>]*>", "");

	 break;

	 case "sql1" :

	 str = str.Replace("'", "");

	 str = str.Replace(";", "");

	 break;

	 case "htmltojs":

	 str = str.Replace("\r\n", "\n");

	 str = str.Replace(@"\", @"\\");

	 str = str.Replace("'", "<a rel="nofollow">\\\'</a>");

	 str = str.Replace("\"", "<a rel="nofollow">\\\</a>"");

	 str = str.Replace("/", "<a rel="nofollow">\\/</a>");

	 str = str.Replace("\n", "");

	 str = str.Replace(" ", "&nbsp;");

	 break;

	 default :

	 str = str.Replace("'", "''");

	 str = str.Replace(";", "；");

	 break;

	 }

	 return str;

	 }

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