using System; 
using System.Text; 
 
namespace ConsoleApplication 
{ 
    class ChineseCode 
　　{ 
        public static void Main() 
        { 
            //获取GB2312编码页（表） 
            Encoding gb=Encoding.GetEncoding("gb2312"); 
 
            //调用函数产生4个随机中文汉字编码 
            object[] bytes=CreateRegionCode(4);  
 
            //根据汉字编码的字节数组解码出中文汉字 
            string str1=gb.GetString((byte[])Convert.ChangeType(bytes[0], typeof(byte[]))); 
            string str2=gb.GetString((byte[])Convert.ChangeType(bytes[1], typeof(byte[]))); 
            string str3=gb.GetString((byte[])Convert.ChangeType(bytes[2], typeof(byte[]))); 
            string str4=gb.GetString((byte[])Convert.ChangeType(bytes[3], typeof(byte[]))); 
 
            //输出的控制台 
　　        Console.WriteLine(str1 + str2 +str3 +str4); 
　　    } 
 
 
        /**//* 
        此函数在汉字编码范围内随机创建含两个元素的十六进制字节数组，每个字节数组代表一个汉字，并将 
        四个字节数组存储在object数组中。 
        参数：strlength，代表需要产生的汉字个数 
        */ 
        public static object[] CreateRegionCode(int strlength) 
        { 
            //定义一个字符串数组储存汉字编码的组成元素 
            string[] rBase=new String [16]{"0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"}; 
             
            Random rnd=new Random(); 
         
            //定义一个object数组用来 
            object[] bytes=new object[strlength]; 
 
            /**//*每循环一次产生一个含两个元素的十六进制字节数组，并将其放入bject数组中 
             每个汉字有四个区位码组成 
             区位码第1位和区位码第2位作为字节数组第一个元素 
             区位码第3位和区位码第4位作为字节数组第二个元素 
            */ 
            for(int i=0;i<strlength;i++) 
            { 
                //区位码第1位 
                int r1=rnd.Next(11,14); 
                string str_r1=rBase[r1].Trim(); 
 
                //区位码第2位 
                rnd=new Random(r1*unchecked((int)DateTime.Now.Ticks)+i);//更换随机数发生器的 
 
种子避免产生重复值 
                int r2; 
                if (r1==13) 
                { 
                    r2=rnd.Next(0,7); 
                } 
                else 
                { 
                    r2=rnd.Next(0,16); 
                } 
                string str_r2=rBase[r2].Trim(); 
 
                //区位码第3位 
                rnd=new Random(r2*unchecked((int)DateTime.Now.Ticks)+i); 
                int r3=rnd.Next(10,16); 
                string str_r3=rBase[r3].Trim(); 
 
                //区位码第4位 
                rnd=new Random(r3*unchecked((int)DateTime.Now.Ticks)+i); 
                int r4; 
                if (r3==10) 
                { 
                    r4=rnd.Next(1,16); 
                } 
                else if (r3==15) 
                { 
                    r4=rnd.Next(0,15); 
                } 
                else 
                { 
                    r4=rnd.Next(0,16); 
                } 
                string str_r4=rBase[r4].Trim(); 
 
                //定义两个字节变量存储产生的随机汉字区位码 
                byte byte1=Convert.ToByte(str_r1 + str_r2,16); 
                byte byte2=Convert.ToByte(str_r3 + str_r4,16); 
                //将两个字节变量存储在字节数组中 
                byte[] str_r=new byte[]{byte1,byte2}; 
 
                //将产生的一个汉字的字节数组放入object数组中 
                bytes.SetValue(str_r,i); 
                 
            } 
 
            return bytes; 
 
            } 
　　} 
 
}