可以帮我做道题吗？ q2476547082 - 编程论坛

#2

雪影辰风2020-04-03 13:28

我临时写的代码，可能会有问题，目前运行结果正常：

只有本站会员才能查看附件，请登录

这是报的警告，不知道有没有用，我是消除不了了，不好意思。

以下是代码：

程序代码：

#include<cstdio>
#include<iostream>
using namespace std;
class Car {
    public:
        Car(char *tBrand,char *tType,int tYear,double tPrice);
        ~Car();
        char *GetBrand() { return brand; }
        char *GetType() { return type; }
        int GetYear() { return year; }
        double GetPrice() { return price; }
    private:
        char *brand;
        char *type;
        int year;
        double price;
};
Car::Car(char *tBrand="undefinition",char *tType="undefinition",int tYear=2000,double tPrice=0) {
    brand=tBrand;
    type=tType;
    year=tYear;
    price=tPrice;
}
Car::~Car() {
    delete brand;
    brand=NULL;
    delete type;
    type=NULL;
    year=0;
    price=0;
}
int main() {
    Car car1("FIAT","Palio",2007,6.5);
    cout<<car1.GetBrand (  ) <<" "<<car1.GetType (  ) <<" "<<car1.GetYear (  )
        <<" " <<car1.GetPrice (  ) <<endl;
    Car car2;
    cout<<car2.GetBrand (  )<<" "<<car2.GetType (  )<<" "<<car2.GetYear (  )
        <<" " <<car2.GetPrice (  )<<endl;
    return 0;
}

#3

雪影辰风2020-04-03 13:30

一方面，我也是刚学的类，析构函数那块还是不懂，尤其是虚析构函数。我的大致理解是，写了虚析构函数的类派生下去是可以正常运行的，没写的话，子类会调用基类的虚构函数，不知道是不是这样，有错误请指出，谢谢！

#4

return_02020-04-03 14:02

回复 3楼雪影辰风

雪影归来啦！

#5

叶纤2020-04-03 14:22

程序代码：

#include<cstdio>
#include<iostream>
using namespace std;
  class Car
  {
    public:
        Car(const char *tBrand,const char *tType,int tYear,double tPrice);
        ~Car();
    const char *GetBrand() { return brand; }
    const  char *GetType() { return type; }
        int GetYear() { return year; }
        double GetPrice() { return price; }
    private:
      const  char *brand;
     const   char *type;
        int year;
        double price;
};
Car::Car(const char *tBrand="undefinition",const char *tType="undefinition",int tYear=2000,double tPrice=0) {
    brand=tBrand;
    type=tType;
    year=tYear;
    price=tPrice;
}
Car::~Car() {
    delete brand;
    brand=NULL;
    delete type;
    type=NULL;
    year=0;
    price=0;
}
int main() {
    Car car1("FIAT","Palio",2007,6.5);
    cout<<car1.GetBrand (  ) <<" "<<car1.GetType (  ) <<" "<<car1.GetYear (  )
        <<" " <<car1.GetPrice (  ) <<endl;
    Car car2;
    cout<<car2.GetBrand (  )<<" "<<car2.GetType (  )<<" "<<car2.GetYear (  )
        <<" " <<car2.GetPrice (  )<<endl;
    return 0;
}
我没学到类只能帮你把char警告消除

#6

雪影辰风2020-04-03 20:02

回复 4楼 return_0

恭喜啊，当上版主了

#7

雪影辰风2020-04-03 20:05

回复 5楼叶纤

谢谢，学到了

#8

叶纤2020-04-03 21:23

以下是引用雪影辰风在2020-4-3 20:02:51的发言：

恭喜啊，当上版主了

以后就有劳各位版主了，小白先在这里谢谢各位版主了