for循环练习——打印九九乘法表

int main(int argc, const char * argv[])
{
    //打印乘法表
    for (int i = 1; i <= 9; i ++) {
        for (int j = 1; j <= i; j++) {
            printf("%d * %d = %2d  ",j,i,i*j);
        }printf("\n");
    }
    
    return 0;
}