#include <stdio.h>
int board[9][9]={{5,3,4,6,7,8,9,1,2},
{6,7,2,1,9,5,3,4,8},
{1,9,8,3,4,2,5,6,7},
{8,5,9,7,6,1,4,2,3},
{4,2,6,8,5,3,7,9,1},
{7,1,3,9,2,4,8,5,6},
{9,6,1,5,3,7,2,8,4},
{2,8,7,4,1,9,6,3,5},
{3,4,5,2,8,6,1,7,9}};
void f1()
{
    printf("|");
    for (int i = 0; i < 23; i++)
    {
        printf("-");
    }
    printf("|\n");
}
int main()
{
    printf("格式化后的数组：\n");
    for (int i = 0; i < 9; i++)
    {
        if (i % 3 == 0)
        {
            f1();
        }
        printf("| ");
        for (int j = 0; j < 9; j++)
        {
            if (j % 3 == 0 && j)
            {
                printf("| ");
            }
            printf("%d ", board[i][j]);
        }
        printf("|\n");
    }
    f1();
}