SHA1算法

   Byte[] data1ToHash = ConvertStringToByteArray(tbxMd5.Text);      
   //byte[] hashvalue1 = ((HashAlgorithm) CryptoConfig.CreateFromName("MD5")).ComputeHash(data1ToHash); 
   byte[] hashvalue1 = ((HashAlgorithm) CryptoConfig.CreateFromName("SHA1")).ComputeHash(data1ToHash);
   Console.WriteLine("字符串 1 的哈希值:"+BitConverter.ToString(hashvalue1));