C#检查两个矩阵是否相同

using System;

namespace Demo {
   public class ApplicationOne {
      public static voID Main() {
         int[, ] arr1 = new int[10, 10];
         int[, ] arr2 = new int[10, 10];
         int flag = 1;
         int i, j, row1, col1, row2, col2;

         Console.Write("Rows in the 1st matrix: ");
         row1 = Convert.ToInt32(Console.Readline());
         Console.Write("Columns in the 1st matrix: ");
         col1 = Convert.ToInt32(Console.Readline());

         Console.Write("Rows in the 2nd matrix: ");
         row2 = Convert.ToInt32(Console.Readline());
         Console.Write("Columns in the 2nd matrix: ");
         col2 = Convert.ToInt32(Console.Readline());

         Console.Write("Elements in the first matrix:\n");
         for (i = 0; i < row1; i++) {
            for (j = 0; j < col1; j++) {
               Console.Write("element - [{0}],[{1}] : ", i, j);
               arr1[i, j] = Convert.ToInt32(Console.Readline());
            }
         }

         Console.Write("Elements in the second matrix:\n");
         for (i = 0; i < row2; i++) {
            for (j = 0; j < col2; j++) {
               Console.Write("element - [{0}],[{1}] : ", i, j);
               arr2[i, j] = Convert.ToInt32(Console.Readline());
            }
         }

         Console.Write("Matrix 1:\n");
         for (i = 0; i < row1; i++) {
            for (j = 0; j < col1; j++)
            Console.Write("{0} ", arr1[i, j]);
            Console.Write("\n");
         }

         Console.Write("Matrix 2:\n");
         for (i = 0; i < row2; i++) {
            for (j = 0; j < col2; j++)
            Console.Write("{0} ", arr2[i, j]);
            Console.Write("\n");
         }

         if (row1 != row2 && col1 != col2) {
            Console.Write("Matrices can't be compared:\n");
         } else {
            Console.Write("Comparison of Matrices: \n");

         for (i = 0; i < row1; i++) {
            for (j = 0; j < col2; j++) {
               if (arr1[i, j] != arr2[i, j]) {
                  flag = 0;
                  break;
               }
            }
         }

         if (flag == 1)
            Console.Write("Our matrices are equal!\n\n");
         else
            Console.Write("Our matrices are not equal!");
         }
      }
   }
}