c#输出螺旋矩阵的一种拙解

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int n=0 ;         //矩阵大小
            Console.Write("请输入矩阵行列的大小(N*N):");
            do
            {
                try
                {
                    n = Convert.ToInt32(Console.ReadLine());
                }
                catch
                {
                    Console.Write("输入有误,请重新输入一个正整数:");
                    continue;
                }
                if (n <= 0)
                {
                    Console.Write("输入有误,请重新输入一个正整数:");
                    continue;
                }
            }
            while(n<=0);
            int num=n;            //方向上的个数
            int x=0, y=0;         //座标
            int number= 1;        //起始数据
            int[,] arraya = new int[n, n];
            int c;
            if ((n + 1) % 2 == 0)
                c = (n + 1) / 2;
            else
                c = n / 2;
            for (int i = 1; i <= c; i++)
            {
                for(int j=1;j<=num;j++)
                    arraya[x++,y]=number++;
                x--;
                y++;
                num--;
                for(int j=1;j<=num;j++)
                    arraya[x,y++]=number++;
                y--;
                x--;
                for(int j=1;j<=num;j++)
                    arraya[x--,y]=number++;
                x++;
                y--;
                num--;
                for(int j=1;j<=num;j++)
                    arraya[x,y--]=number++;
                y++;
                x++;
            }
            for (int i = 0; i <= n-1; i++)
            {
                for (int j = 0; j <= n-1; j++)
                {

                    if (arraya[i, j] < 10)
                        Console.Write("  " + arraya[i, j].ToString() + "  ");
                    else if(arraya[i, j] < 100)
                        Console.Write(" " + arraya[i, j].ToString() + "  ");
                    else
                        Console.Write(arraya[i, j].ToString() + "  ");
                }
                Console.Write("/n");
            }
            Console.ReadKey();
        }
    }
}

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