如何在十六进制字符串与数值类型之间转换（C# 编程指南）

        //16进制字符串转为字节数组
        private byte[] hexToByteArr(string hexStr)
        {
            hexStr = hexStr.ToLower();
            string[] hexStrSplit = hexStr.Split(' ');
            byte[] byteArr = new byte[hexStrSplit.Length / 2];
            int i = 0;
            foreach (string hex in hexStrSplit)
            {
                byte value = Convert.ToByte(hex, 16);
                byteArr[i] = value;
            }
            return byteArr;
        }

　　将字节数组转换为十六进制字符串

byte[] vals = { 0x01, 0xAA, 0xB1, 0xDC, 0x10, 0xDD };

string str = BitConverter.ToString(vals);
Console.WriteLine(str);

str = BitConverter.ToString(vals).Replace("-", "");
Console.WriteLine(str);

/*Output:
  01-AA-B1-DC-10-DD
  01AAB1DC10DD
 */

　调用 .NET 5.0 中引入的 Convert.ToHexString 方法，将字节数组转换为十六进制字符串

　

byte[] array = { 0x64, 0x6f, 0x74, 0x63, 0x65, 0x74 };

string hexValue = Convert.ToHexString(array);
Console.WriteLine(hexValue);

/*Output:
  646F74636574
 */