C# .Net md5 加密
16λMD5
string Md5String = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile("加密字符串","md5").ToLower().Substring(8,16);
32λMD5
string Md5String = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile("加密字符串","md5").ToLower();