访问二维数组元素

#include <stdio.h>



int main () {



   /* an array with 5 rows and 2 columns*/

   int a[5][2] = { {0,0}, {1,2}, {2,4}, {3,6},{4,8}};

   int i, j;



   /* output each array element's value */

   for ( i = 0; i < 5; i++ ) {



      for ( j = 0; j < 2; j++ ) {

         printf("a[%d][%d] = %d\n", i,j, a[i][j] );

      }

   }



   return 0;

}