//
// Created by andrew on 2020年11月17日.
//

#include <iostream>

using namespace std;

class Current18v {
public:
 virtual void useCurrent18v() = 0;

 virtual ~Current18v() {

 }
};

class Current220v {
public:
 void useCurrent220v() {
 cout << "使用 220v" << endl;
 }
};

class Adapter : public Current18v {
public:
 Adapter(Current220v *current) {
 m_current = current;
 }

 virtual void useCurrent18v() {
 cout << "适配 220v";
 m_current->useCurrent220v();
 }

private:
 Current220v *m_current;
};


int main(int argc, char *argv[]) {

 Current220v *current220v = NULL;
 Adapter *adapter = NULL;

 current220v = new Current220v;
 adapter = new Adapter(current220v);
 adapter->useCurrent18v();

 delete adapter;
 delete current220v;

 return 0;
}