c++设计一个车辆类,该类有两个派生类 客车和货车 求助 60
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//vs2010编译通过
#include <iostream>
class Mam
{
public:
// void speak(); //没有定义virtual（虚）
virtual void speak();
};
void Mam::speak()
{
std::cout << "发声！" << std::endl;
}
class Human : public Mam
{
public:
void speak();
};
void Human::speak()
{
std::cout << "说话！" << std::endl;
}
class Cat : public Mam
{
public:
void speak();
};
void Cat::speak()
{
std::cout << "喵！" << std::endl;
}
class Dog : public Mam
{
public:
void speak();
};
void Dog::speak()
{
std::cout << "汪！" << std::endl;
}
int main()
{
Cat ca;
Mam *mp = &ca;
mp->speak();
Human man;
Mam &ma = man;
ma.speak();
system("pause");
return 0;
}
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只做第一题，对吧
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class Vehicle{
private:
Color color;
float outputVolume;
std::string manufacture;
DateTime outputTime;
float price;
static int _count;
public:
Vehicle() {_count++;}
void setColor(Color c) { color = c;}
void setPrice(float p) { price = p;}
float getCc() { return outputVolume;}
float getPrice() { return price;}
int numberOfVehicle() { return _count;}
};
int Vehicle::_count = 0;
class Truck : public Vehicle{
private:
float loading;
public:
void setLoading(float l) { loading = l;}
};
class Car : public Vehicle{
private:
int passengerNumber;
public:
void setPassengerNumber(int pn) { passengerNumber= pn;}
};
class Sedan : public Car{
private:
float weight;
public:
void setWeight(float w) { weight=w;}
};
class Van : public Car{
private:
int seats;
public:
void setSeats(int s) { seats = s;}
};
class Bus : public Car{
private:
int length;
public:
void setLength(int l) { length = l;}
};
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