1 可以用于密码加密，长度32位。
/**//// <summary>
/// md5加密算法 /// </summary> /// <param name="strIN"></param>
/// <returns></returns>
private string MD5Encrypt(string strIN) ...{ System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider(); byte[] bytValue, bytHash; bytValue = System.Text.Encoding.UTF8.GetBytes(strIN); bytHash = md5.ComputeHash(bytValue); md5.Clear(); string sTemp = ""; for (int i = 0; i < bytHash.Length; i++) 
...{ sTemp += bytHash[i].ToString("x").PadLeft(2, '0'); 
} if (sTemp.Length > 32) ...{ sTemp = sTemp.Substring(0, 32); } return sTemp; }