C语言--乘法口诀

#define _CRT_SECURE_NO_WARNINGS 
#include<stdio.h>

int main() {
	
	int arr[2][4] = { 1,2,3,41,21,22,23};
	for (int i = 1; i < 10; i++) 
	{
		for (int j = 1;  j<10&&j<=i; j++) 
		{
			//printf("%d ", arr[i][j]);
			printf("%dx%d = %d  ", j, i, i * j);

		}
		printf("\n");
	}




	return 0;
}