在数组中按元素获取input元素

Question

它试图逐个元素地获取输入，而不是逐行获取并显示为矩阵。 输入格式是

我想以3行3列的方阵形式输出

100
----------
010
----------
001

代码：

using System;  
public class Exercise14  
{  
    public static void Main() 
{
    int i,j;
    int[,] arr1 = new int[3,3];

       Console.Write("\n\nRead a 2D array of size 3x3 and print the matrix :\n");
       Console.Write("------------------------------------------------------\n");  


    /* Stored values into the array*/
       Console.Write("Input elements in the matrix :\n");
  for(i=0;i<3;i++)
  {
      for(j=0;j<3;j++)
      {

          arr1[i,j] = Convert.ToInt32(Console.ReadLine()); 
      }
  }  

 Console.Write("\nThe matrix is : \n");
  for(i=0;i<3;i++)
  {
      Console.Write("\n");
      for(j=0;j<3;j++)
           Console.Write("{0}\t",arr1[i,j]);
     }
   Console.Write("\n\n");
   }
}