1     /// 
 2     /// MD5加密 3     /// 
 4     public class Md5 5     { 6         /// 
 7         /// MD5加密 8         /// 
 9         /// 加密字符10         /// 加密位数16/3211         /// 
     12         public static string md5(string str, int code)13         {14             string strEncrypt = string.Empty;15             if (code == 16)16             {17                 strEncrypt = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").Substring(8, 16);18             }19 20             if (code == 32)21             {22                 strEncrypt = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5");23             }24 25             return strEncrypt;26         }27     }