c#语言的编码

using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleSuanFa
{
    class EncodeTest
    {
        public void test()
        {
            String str="杨俊辉";
            Encoding uni_str=Encoding.Unicode;
            byte[] bytes=uni_str.GetBytes(str);
            Console.WriteLine("the unicode");
            for(int i=0;i