facade模式

有时不想对内部了解太多，只想获得一个接口，facade模式最好不过。

#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <set>
#include <algorithm>
#include <map>
#include <stack>
using namespace std;

class Subsystem1 {
public:
    void Operation() {
        cout << "operation 1\n";
    }

};

class Subsystem2 {
public:
    void Operation() {
        cout << "operation 2\n";
    }

};

class Facade {
public:
    Facade() {
        _subs1 = new Subsystem1();
        _subs2 = new Subsystem2();
    }
    ~Facade() {
        delete _subs1;
        delete _subs2;
    }
    void OperationWrapper() {
        _subs1->Operation();
        _subs2->Operation();
    }

private:
    Subsystem1* _subs1;
    Subsystem2* _subs2;
};

int main() {
    Facade kaka;
    kaka.OperationWrapper();
    return 0;
}