#07 代理模式
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
using namespace std;
//提供一种代理来控制对其他对象的访问
class AbstractCommonInterface{
public:
virtual void run() = 0;
};
//我已经写好的系统
class MySystem : public AbstractCommonInterface{
public:
virtual void run(){
cout << "系统启动..." << endl;
}
};
//必须有要权限验证，不是所有人都能来启动我的启动，提供用户名和密码
class MySystemProxy : public AbstractCommonInterface{
public:
MySystemProxy(string username,string password){
this->mUsername = username;
this->mPassword = password;
pSystem = new MySystem;
}
bool checkUsernameAndPassoword(){
if (mUsername == "admin" && mPassword == "admin"){
return true;
}
return false;
}
virtual void run(){
if (checkUsernameAndPassoword()){
cout << "用户名和密码正确，验证通过..." << endl;;
this->pSystem->run();
}
else{
cout << "用户名或者密码错误,权限不足..." << endl;
}
}
~MySystemProxy(){
if (pSystem != NULL){
delete pSystem;
}
}
public:
MySystem* pSystem;
string mUsername;
string mPassword;
};
void test01(){
MySystemProxy* proxy = new MySystemProxy("admin","admin");
proxy->run();
}
int main(void){
test01();
return 0;
}
