九九乘法表

int main()
{
	int a = 0;
	for (a = 1; a <= 9; a++)
	{
		int b = 1;
		for (b = 1; b <= a; b++)
		{
			printf(" %d*%d=%d", a, b, a * b);
		}
		printf("\n");
	}
	return 0;
}