九九乘法表

#include <stdio.h>

int main()
{
    int a[9] = { 1,2,3,4,5,6,7,8,9}, b[9] = {1,2,3,4,5,6,7,8,9};
    for (int i = 0; i < 9; i++) {
        printf("%4d",a[i]);
    }
    printf("\n------------------------------------\n");
    for (int i = 0; i < 9; i++) {
        for (int j = 0; j < 9; j++) {
            if (j == 8) {
                printf("%4d\n", a[i] * a[j]);
            }
            else printf("%4d", a[i] * a[j]);
        }
    }
    return 0;
}