#include<iostream>
#include<string>
using namespace std;
int main()
{
    string s1;
    int cnt = 0; // 记录错误次数
    while(1)
    {
        cout<<"请输入密码:"<<endl;
        getline(cin,s1);
        if(s1=="zzx")
        {
            cout<<"密码正确,欢迎使用"<<endl;
            break;
        }
        else
        {
            cnt++;
            cout<<"密码错误,请重新输入:"<<endl;
            if(cnt >= 3)
            {
                cout<<"错误次数过多,程序退出!"<<endl;
                break;
            }
        }
    }
    return 0;
}

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