1、一个程序,一个源文件的做法

#include<iostream>
#include<cstring>
using namespace std;
class Student
{
private:
char Name[20]; //学生姓名
double Chinese; //语文成绩
double Math; //数学成绩
public:
double Average( );//计算平均成绩
double Sum( ); //计算总分
void Show( ); //打印信息
void SetStudentdent(char*,double,double);//为对象置姓名、成绩
void SetName(char *); //为对象置姓名
char *GetName( ); //取得学生姓名
};
double Student::Average( )
{
return (Chinese+Math)/2;
}//平均成绩


double Student::Sum( )
{
return Chinese+Math;
} //总分
void Student::Show( ) //打印信息
{
cout<<"Name: "<<Name<<endl<<"Score: "<<Chinese<<'\t'<<
Math<<'\t'<<"average: "<<Average()<<'\t'<<"Sum: "<<Sum()<<endl;
}
void Student::SetStudentdent(char *name,double chinese,double math)
{
strcpy(Name,name); //置姓名
Chinese=chinese; //置语文成绩
Math=math; //置数学成绩
}


void Student::SetName(char *name)
{
strcpy(Name,name); //置姓名
}


char * Student::GetName( )
{
return Name;
}//返回姓名


int main( )
{
Student p1,p2;
p1.SetStudentdent("Li qing",98,96); //对象置初值
p2.SetStudentdent("Wang Gang",90,88); //对象置初值
p1.Show();//打印信息
p2.Show();//打印信息
p1.SetName("Zhao jian");//重新置p1对象的名字
p1.Show();
cout<<"p1.Name: "<<p1.GetName()<<endl;//打印对象的名字
cout<<"p1.average: "<<p1.Average()<<endl;//打印对象的成绩
return 0;
}



2、一个程序,多个源/头文件的做法


student.h


#ifndef STUDENT_H_INCLUDED
#define STUDENT_H_INCLUDED


class Student
{
private:
char Name[20]; //学生姓名
double Chinese; //语文成绩
double Math; //数学成绩
public:
double Average( );//计算平均成绩
double Sum( ); //计算总分
void Show( ); //打印信息
void SetStudentdent(char*,double,double);//为对象置姓名、成绩
void SetName(char *); //为对象置姓名
char *GetName( ); //取得学生姓名
};


#endif // STUDENT_H_INCLUDED



student.cpp


#include<iostream>
#include<cstring>
#include "student.h"
using namespace std;


double Student::Average( )
{
return (Chinese+Math)/2;
}//平均成绩


double Student::Sum( )
{
return Chinese+Math;
} //总分


void Student::Show( ) //打印信息
{
cout<<"Name: "<<Name<<endl<<"Score: "<<Chinese<<'\t'<<
Math<<'\t'<<"average: "<<Average()<<'\t'<<"Sum: "<<Sum()<<endl;
}
void Student::SetStudentdent(char *name,double chinese,double math)
{
strcpy(Name,name); //置姓名
Chinese=chinese; //置语文成绩
Math=math; //置数学成绩
}


void Student::SetName(char *name)
{
strcpy(Name,name); //置姓名
}


char * Student::GetName( )
{
return Name;
}//返回姓名



main.cpp


#include<iostream>
#include "student.h"
using namespace std;
int main( )
{
Student p1,p2;
p1.SetStudentdent("Li qing",98,96); //对象置初值
p2.SetStudentdent("Wang Gang",90,88); //对象置初值
p1.Show();//打印信息
p2.Show();//打印信息
p1.SetName("Zhao jian");//重新置p1对象的名字
p1.Show();
cout<<"p1.Name: "<<p1.GetName()<<endl;//打印对象的名字
cout<<"p1.average: "<<p1.Average()<<endl;//打印对象的成绩
return 0;
}