C++之面向对象编程多文件文件示例

• 一般将类的声明放在.h文件中，类中成员函数的定义放在.cpp文件中

/*person.h*/#ifndef__PERSON_H__#define__PERSON_H__#include<iostream>usingnamespacestd;classperson{private:intage;string name;public:person(intage,conststring&name);voidwhoami(void);};#endif

/*person.cpp*/#include"person.h"person::person(intage,conststring&name){this->age=age;this->name=name;}voidperson::whoami(void){cout<<"我是: "<<name<<endl;}

#ifndef__STUDENT_H__#define__STUDENT_H__#include"person.h"classstudent:publicperson{private:floatscore;public:student(intage,conststring&name,floatscore);voidwhoami(void);};#endif

/*student.cpp*/#include"student.h"student::student(intage,conststring&name,floatscore):person(age,name){this->score=score;}voidstudent::whoami(void){person::whoami();cout<<"我的成绩是: "<<score<<endl;}

/*main.cpp*/#include"student.h"intmain(void){students1(22,"刘备",81.5);s1.whoami();return0;}

g++ person.cpp student.cpp main.cpp ./a.out