stack—C++标准库

#include#includeusing namespace std;int main() {stack s;s.push(1);s.push(2);s.push(3);s.push(4);cout << "移除栈顶元素";s.pop();cout << endl;cout << "栈顶元素：" << s.top() << endl;cout << "栈中元素数目：" << s.size() << endl;cout << "栈是否为空：" << s.empty() << endl;return 0;}

测试结果：