c++栈功能

//#############################################################
//#Name:                     栈功能                           #
//#Copyright:             (hlb20130715)                       #
//#Author:                   贺礼博                           #
//#Date:                  2024/12/9 21:00                     #
//#Description:        若要转载，请说明出处                   #
//#############################################################
#include<bits/stdc++.h>
#include<ctime>
#include<cstdlib>
#include<unistd.h>
#include<windows.h>
using namespace std;
stack<int> s;
int main() {
	cout<<"********栈功能********\n";
	cout<<"功能1.压入元素\n";
	cout<<"功能2.取出栈顶元素\n";
	cout<<"功能3.删除栈顶元素\n";
	cout<<"功能4.计算栈中元素个数\n";
	cout<<"功能5.清空栈\n";
	cout<<"功能6.退出\n";
	int sr;
	cin>>sr;
	while(sr<6) {
		if(sr==1) {
			cout<<"单个压入(1)or多个压入(2)\n";
			int st;
			cin>>st;
			if(st==1) {
				cout<<"请输入压入元素\n";
				int x;
				cin>>x;
				s.push(x);
				cout<<"压入完毕\n";
			} else {
				cout<<"请输入压入元素个数\n";
				int n;
				cin>>n;
				cout<<"请依次输入各个元素\n";
				for(int i=1; i<=n; i++) {
					cout<<"请输入第"<<i<<"个元素:";
					int x;
					cin>>x;
					s.push(x);
				}
				cout<<"压入完毕\n";
			}
		} else if(sr==2) {
			cout<<"栈顶元素为:"<<s.top();
		} else if(sr==3) {
			s.pop();
			cout<<"已经删除栈顶元素\n";
		} else if(sr==4) {
			cout<<"栈中有"<<s.size()<<"个元素\n";
		} else if(sr==5) {
			while(!s.empty()){
				s.pop();
			}
			cout<<"已经清空\n";
		}
		Sleep(5000);
		system("cls");
		cout<<"当前元素:\n";
		stack<int> f=s;
		while(!f.empty()){
			cout<<f.top()<<" ";
			f.pop();
		}
		cout<<"\n********栈功能********\n";
		cout<<"功能1.压入元素\n";
		cout<<"功能2.取出栈顶元素\n";
		cout<<"功能3.删除栈顶元素\n";
		cout<<"功能4.计算栈中元素个数\n";
		cout<<"功能5.清空栈\n";
		cout<<"功能6.退出\n";
		cin>>sr;
	}
	cout<<"下次再见\n";
	return 0;
}