songjian19960721的专栏

问题及代码：

main.cpp:

#include<iostream>#include"header.h"//using namespace std;int main(){Stu s1,s2;s1.setStudent("Lin daiyu", 98, 96); //对象置初值s2.setStudent("Jia baoyu", 90, 88); //对象置初值s1.show();//打印信息s2.show();//打印信息s1.setName("xue baochai");//重新置p1对象的名字s1.show();cout<<"s1.Name: "<<s1.getName()<<endl;//打印对象的名字cout<<"s1.average: "<<s1.average()<<endl;//打印对象的成绩return 0;}

student.cpp:

#include"header.h"#include<iostream>#include <string>double Stu::average(){return (chinese+math)/2;}float Stu::sum(){return (chinese+math);}void Stu::setStudent(string x,float y,float z){name=x;chinese=y;math=z;}void Stu::show(){cout<<"Name:"<<name<<endl;cout<<"Score:"<<chinese<<" "<<math<<endl;cout<<"average:"<<average()<<""<<"Sum:"<<sum();cout<<endl;}void Stu::setName(string x){name=x;}string Stu::getName(){return name;}

header.h:

#include"header.h"#include<iostream>#include <string>double Stu::average(){return (chinese+math)/2;}float Stu::sum(){return (chinese+math);}void Stu::setStudent(string x,float y,float z){name=x;chinese=y;math=z;}void Stu::show(){cout<<"Name:"<<name<<endl;cout<<"Score:"<<chinese<<" "<<math<<endl;cout<<"average:"<<average()<<""<<"Sum:"<<sum();cout<<endl;}void Stu::setName(string x){name=x;}string Stu::getName(){return name;}

运行结果：

知识点总结：

分文件后报错是在main函数但是同时也要考虑在别的文件中是不是有错，不能只盯着main函数，定义类函数的时候注意前缀和：：，做程序养成不断调整规范的习惯，能够方便查错，，不要粗心！

其实只要你愿意，一切都可以变得很容易。