c#string，Int，float与16进制之间的转换

字符串转16进制数据

    class Program
    {
        static void Main(string[] args)
        {
            string input = "Hello World!";
            char[] values = input.ToCharArray();
            foreach (char c in values)
            {
                int value = Convert.ToInt32(c);
                Console.WriteLine("Hexadecimal value of {0} is {1:X}", c, value);
            }
            Console.ReadKey();
        }
    }

运行结果

16进制数据转字符串

    class Program
    {
        static void Main(string[] args)
        {
            string input = "48 65 6C 6C 6F 20 57 6F 72 6C 64 21";    //Hello World!
            string[] sArr = input.Split(' ');

            string outputStr = "";
            foreach (string s in sArr)
            {
                int v = Convert.ToInt32(s, 16);
                outputStr += (char)v;
            }

            Console.WriteLine(outputStr);
            Console.ReadKey();
        }
    }

运行结果

16进制数据转int

    class Program
    {
        static void Main(string[] args)
        {
            string hexString = "ABCD";
            int num = Int32.Parse(hexString, System.Globalization.NumberStyles.HexNumber);
            Console.WriteLine(num);

            Console.ReadKey();
        }
    }

运行结果

16进制数据转float

static void Main(string[] args)
        {
            string hexString = "43480170";
            uint num = uint.Parse(hexString, System.Globalization.NumberStyles.AllowHexSpecifier);

            byte[] floatVals = BitConverter.GetBytes(num);
            float f = BitConverter.ToSingle(floatVals, 0);
            Console.WriteLine("{0}", f);

            Console.ReadKey();
        }

运行结果

字节数组转换为16进制字符串

        static void Main(string[] args)
        {
            byte[] vals = { 0x01, 0xAA, 0xB1, 0xDC, 0x10, 0xDD };

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

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

            Console.ReadKey();
        }

运行结果