c++：类的继承：Man继承People类

继承：Man继承People类

main函数中这么写

#include <iostream>
#include "Man.h"
using namespace std;
//#include "People.h"
int main(){

    Man *m = new Man();
    m->sayhello();
    delete(m);
    cout<<"wwww";//如果不写第三行代码的话，要写成std::cout
//    People *p = new People();
//    p->sayhello();
//    delete(p);
}

 People.h(进行函数的定义)中这么写

#include <iostream>
using namespace std;//.h文件中引入了std，则.cpp文件中可直接用cout
class People{
private:
    int age;
    int sex;
public:
    People();
    People(int age,int sex);
    int getage();
    int getsex();
    void sayhello();

};

People.cpp中这么写

#include "People.h"
People::People(){
    this->age = 10;
    this->sex = 1;
}
People::People(int age,int sex){
    this->age = age;
    this->sex = sex;
}
int People::getage(){
    return this->age;
}
int People::getsex(){
    return this->sex;
}
void People::sayhello(){
    cout<<"hanjing";
//    printf("hello");
}

Man.h中这么写

#include <iostream>
#include "People.h"
using namespace std;
class Man:public People{
    
};

Man.cpp中这么写

#include "Man.h"

最后运行，输出结果为：

hanjingwwww