C# Console.Write格式化、Buffer、BitConverter用处不大

using System;

namespace ConsoleApplication2
{
    class Program
    {
        /*
        public static void Main()
        {
            int value = -16;
            Byte[] bytes = BitConverter.GetBytes(value);
            for (int i = 0; i < bytes.Length; i++)
            {
                Console.WriteLine(bytes[i]);
            }
            // Convert bytes back to Int32.
            int intValue = BitConverter.ToInt32(bytes, 0);
            Console.WriteLine("{0} = {1}: {2}",
                              value, intValue,
                              value.Equals(intValue) ? "Round-trips" : "Does not round-trip");
            // Convert bytes to UInt32.
            uint uintValue = BitConverter.ToUInt32(bytes, 0);
            Console.WriteLine("{0} = {1}: {2}", value, uintValue,
                              value.Equals(uintValue) ? "Round-trips" : "Does not round-trip");
        }
        */
        public static void DisplayArray(short[] arr)
        {
            for (int loopX = arr.Length - 1; loopX >= 0; loopX--)
                Console.Write(" {0:X4}", arr[loopX]);
            Console.WriteLine();
        }
        
        public static void Main()
        {
            // This array is to be modified and displayed.
            short[] arr = { 258, 259, 260, 261, 262, 263, 264,
                         265, 266, 267, 268, 269, 270, 271 };

            Console.WriteLine("This example of the Buffer class " +
                "methods generates the following output.\n" +
                "Note: The array is displayed from right to left.\n");
            Console.WriteLine("Initial values of array:\n");

            // Display the initial array values and ByteLength.
            DisplayArray(arr);
            Console.WriteLine("\nBuffer.ByteLength( arr ): {0}",
                Buffer.ByteLength(arr));

            // Copy a region of the array; set a byte within the array.
            Console.WriteLine("\nCall these methods: \n" +
                "  Buffer.BlockCopy( arr, 5, arr, 16, 9 ),\n" +
                "  Buffer.SetByte( arr, 7, 170 ).\n");

            Buffer.BlockCopy(arr, 5, arr, 16, 9);
            Buffer.SetByte(arr, 7, 170);

            // Display the array and a byte within the array.
            Console.WriteLine("Final values of array:\n");
            DisplayArray(arr);
            Console.WriteLine("\nBuffer.GetByte( arr, 26 ): {0}",
                Buffer.GetByte(arr, 26));
        }
        
    }
}