C++Windows用户登录界面

#include<iostream> #include<string> using namespace std; class Login { public: Login() { m_errorNum=1; strcpy(m_username,"admin"); strcpy(m_password,"123"); } bool IsLogin(char *str1, char *str2) { if(strcmp(str1,m_username)==0 && strcmp(str2,m_password)==0 ) { return true; } if(m_errorNum==3) { cout<<"你已经试了3次,程序自动退出."<<endl; exit(0); } m_errorNum++; return false; } private: char m_username[20]; char m_password[20]; int m_errorNum; }; int main() { Login login; char username[20],password[20]; begin: cout<<"请输入你的帐号:"<<endl; cin>>username; cout<<"请输入你的密码:"<<endl; cin>>password; if(login.IsLogin(username,password)) { cout<<"欢迎使用windows"<<endl; } else { cout<<"用户名和密码输入错误,请重新输入."<<endl; goto begin; } return 0; }