抽象工厂模式
#include <iostream>
using namespace std;
//形状抽象类
class Shape {
public:
virtual void Draw() = 0;
};
class Rect : public Shape {
public:
void Draw() {
cout << "正方形" << endl;
}
};
class Circ : public Shape {
public:
void Draw() {
cout << "圆型" << endl;
}
};
//颜色抽象类
class Color {
public:
virtual void Show() = 0;
};
class Rad : public Color {
public:
void Show() {
cout << "红色" << endl;
}
};
class Blue : public Color {
public:
void Show() {
cout << "蓝色" << endl;
}
};
//工厂抽象类
class AbstractFactory {
public:
virtual Shape *getShape(int type) = 0;
virtual Color *getColor(int type) = 0;
};
class ShapeFactory : public AbstractFactory {
public:
Shape *getShape(int type) {
Shape *sp = nullptr;
switch (type) {
case 1: sp = new Rect(); break;
case 2: sp = new Circ(); break;
default: cout << "unknow type!" << endl; break;
}
return sp;
}
Color *getColor(int type) {
cout << "这是形状主场" << endl;
return nullptr;
}
};
class ColorFactory : public AbstractFactory {
public:
Shape *getShape(int type) {
cout << "这是颜色主场" << endl;
return nullptr;
}
Color *getColor(int type) {
Color *cl = nullptr;
switch (type) {
case 1: cl = new Rad(); break;
case 2: cl = new Blue(); break;
default: cout << "unknow type" << endl; break;
}
return cl;
}
};
AbstractFactory *getFactory(int type) {
AbstractFactory *af = nullptr;
switch (type) {
case 1: af = new ShapeFactory(); break;
case 2: af = new ColorFactory(); break;
default: cout << "unknow type" << endl; break;
}
return af;
}
int main()
{
AbstractFactory *shapeF = getFactory(1);
AbstractFactory *colorF = getFactory(2);
Shape *rect = shapeF->getShape(1);
rect->Draw();
Shape *circ = shapeF->getShape(2);
circ->Draw();
Color *rad = colorF->getColor(1);
rad->Show();
Color *blue = colorF->getColor(2);
blue->Show();
std::cout << "Hello World!\n";
}
