重温设计模式--中介者模式
#include<iostream>
#include<string>
using namespace std;
class Country;
//抽象类 联合国
class UN
{
public:
virtual void delcare(string message , Country *m_country){}
virtual void initcountry(Country*s1,Country*s2){};
};
//国家
class Country
{
protected:
UN *m_un;
public:
Country(UN* name):m_un(name){}
virtual void delcare(string m_message){}
};
//美国
class USA:public Country
{
public:
USA(UN* name):Country(name){}
void delcare(string message)
{
cout<<"美国: "<<message<<endl;
}
};
//伊拉克
class Iraq:public Country
{
public:
Iraq(UN* name):Country(name){}
void delcare(string message)
{
cout<<"伊拉克："<<message<<endl;
}
};
//安理会
class Security:public UN
{
private:
Country *m_usa;
Country *m_iraq;
public:
void initcountry(Country*s1 , Country*s2)
{
m_usa = s1;
m_iraq = s2;
}
void delcare(string message , Country *m_country)
{
if(m_country==m_usa)
{
m_usa->delcare(message);
}
else
{
m_iraq->delcare(message);
}
}
};
int main()
{
UN *m_sec = new Security();//创建安理会
Country*country_usa = new USA(m_sec);//创建美国
Country*country_iraq = new Iraq(m_sec);//创建伊拉克，美国和伊拉克有共同的中介者：安理会，m_sec
m_sec->initcountry(country_usa,country_iraq);
m_sec->delcare("我要干死你" , country_usa);
m_sec->delcare("来呀，cnm，互相伤害呀" , country_iraq);
cout<<endl<<endl;
return 0;
}