第九篇 C#实现螺旋矩阵

C#语言，二维数组的用法和C++、java不同 其它两种也写了，差别不大这里不上传了 
using System;namespace _NetRectangle{    internal class Program    {        private static void Main(string[] args)        {            var rd = new Random();            int r = rd.Next(10);            int n = r + 1;            int j = 0;            int[,] rec = new int[10,10];            Console.WriteLine("生成的随机数是：" + r);            while (j <= r/2)            {                //第一次输出最左边的数字                for (int i = j; i <= r - j; i++)                {                    if (j == 0)                    {                        rec[i,j] = i + 1;                    }                    else                    {                        rec[i,j] = rec[i - 1,j] + 1;                    }                }                //第二次输出最下边的数字                for (int i = j + 1; i <= r - j; i++)                {                    rec[r - j,i] = rec[r - j,i - 1] + 1;                }                //第三次输出最右边的数字                for (int i = r - j - 1; i >= j; i--)                {                    rec[i,r - j] = rec[i + 1,r - j] + 1;                }                for (int i = r - j; i > j + 1; i--)                {                    rec[j,i - 1] = rec[j,i] + 1;                }                j++;            }            for (int i = 0; i < n; i++)            {                for (int k = 0; k < n; k++)                {                   Console.Write(rec[i,k] + " ");                }                Console.WriteLine("");            }            Console.Read();        }    }}