printf自由向左压入栈

#include <stdio.h>
#include <iostream>
using namespace std;

int main()
{
	int b=3;
	int arr[] = {6,7,8,9};
	int *ptr = arr;
	*(ptr++) += 123;
	printf("%d  %d\n",*ptr, *(++ptr));
	return 1;
}