public static string EncryptWithMD5(string source)
{
byte [] sor=Encoding.UTF8.GetBytes(source);
MD5 md5=MD5.Create();
byte [] result= md5.ComputeHash(sor);
StringBuilder strbul=new StringBuilder(40);
for(int i=0;i<result.Length;i++)
{
strbul.Append(result[i].ToString("x2"));//加密结果"x2"结果为32位,"x3"结果为48位,"x4"结果为64位
}
return strbul.ToString();
}