不同文件中类外定义demo

demo1.cpp

#include<iostream>#include "demo1_h.h";using namespace std;int main(){Student stu;stu.setName("frank");cout<<stu.getName()<<endl;cin.get();}

demo1_h.h

#include<string>using namespace std;class Student{private:string name;public:void setName(string _name);string getName();};

demo1_h.cpp

#include<string>#include "demo1_h.h";using namespace std;string Student::getName(){return name;}void Student::setName(string _name){name=_name;}