组合和继承综合（9）

组合和继承综合（9）

#ifndef#define#include using namespace std;class display {public: display(); ~display(); void DoDisPlay();};#endif

#include "display.h"display::display() { cout << "display::display()" << endl;}display::~display() { cout << "display::~display()" << endl;}void display::DoDisPlay() { cout << "display::DoDisPlay()" << endl;}

#ifndef#define#include using namespace std;class key{public: key(); ~key(); void DoKey();};#endif

#include "Key.h"key::key() { cout << "key()" << endl;}key::~key() { cout << "~key()" << endl;}void key::DoKey() { cout << "key::DoKey()" << endl;}

#ifndef#define#include using namespace std;class mouse {public: mouse(); ~mouse(); void DoMouse();};#endif

#include "mouse.h"mouse::mouse() { cout << "mouse::mouse()" << endl;}mouse::~mouse() { cout << "mouse::~mouse()" << endl;}void mouse::DoMouse() { cout << "mouse::DoMouse()" << endl;}

#ifndef#define#include using namespace std;class print {public: print(); ~print(); void DoPrint();};#endif

#include "print.h"print::print() { cout << "print::print()" << endl;}print::~print() { cout << "print::~print()" << endl;}void print::DoPrint() { cout << "print::DoPrint()" << endl;}

#ifndef#define#include #include "print.h"#include "display.h"#include "Key.h"#include "mouse.h"using namespace std;//电脑继承display, key（我们这只是为了练习将显示和键盘用在了继承，一般显示和键盘也放到组合）class computer :public display, public key {public: int x; computer(); ~computer(); void DoCpu(); //电脑组合鼠标和打印机 mouse Mouse; print Print; };#endif

#include "computer.h"#include "display.h"#include "Key.h"#include "mouse.h"#include "print.h"//派生出来的protect通过初始化列表进行初始化，我们这都是public可以不通过初始化列表初始化computer::computer() :display(), key(), Mouse(),Print(),x(5){ cout << "computer::computer()" << endl;}computer::~computer() { cout << "computer:~:computer()" << endl;}void computer::DoCpu() { cout << "computer::DoCpu() " << endl;}

#include "computer.h"#include "print.h"#include "display.h"#include "Key.h"#include "mouse.h"int main() { computer Computer; Computer.DoCpu(); Computer.DoDisPlay(); Computer.DoKey(); Computer.Mouse.DoMouse(); Computer.Print.DoPrint(); return 0;}

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