It formats the string as two uppercase hexadecimal characters. In more depth, the argument "X2" is a "format string" that tells the ... ... <看更多>

for (int i = 0; i < data.Length; i++). {. sBuilder.Append(data[i].ToString("x2"));. } // Return the hexadecimal string. return sBuilder.ToString();. } ... ... <看更多>

Length; i++) { builder.Append(crypto[i].ToString("x2")); ... ... <看更多>