编辑代码

using System;

public class number
{
    public static void Main()
    {
    //数组
    int[] a = new int[1000];
    Console.Write (a[123]); 
    //矩形数组
    int[, ] matrix1 = new int[, ]
        {
          {0,1,2},
          {3,4,5},
          {6,7,8}
        };
    //锯齿形数组
    int[][] matrix2 = new int[][]
        {
          new int[] {0,1,2},
          new int[] {3,4,5},
          new int[] {6,7,8,9}
        };            
    }
}