代码:
#include<iostream>
#include<stack> //栈需要的头文件
using namespace std;
int main() {
stack <int> s; //定义
s.push(1);
s.push(2);
printf("尺寸:%d\n",s.size());
printf("空的?:%d\n",s.empty());
printf("取出:%d\n",s.top());
s.pop();
printf("取出:%d\n",s.top());
printf("新尺寸:%d\n",s.size());
}
//先进后出