main.cpp

#include <iostream>
#include <string>
#include "student.h"
using namespace std;
int main()
{
    student stu;
    stu.stuin();
    stu.stuout();
    return 0;
}

student.cpp

#include "student.h"
void student::stuin()
{
    std::cout << "学号：" ;
    std::cin >> num;
    std::cout << "姓名：" ;
    std::cin >> name;
    std::cout << "性别：" ;
    std::cin >> sex;
    std::cout << "年级：" ;
    std::cin >> grade;
    std::cout << "电话：" ;
    std::cin >> tnum;
    std::cout << "************************" << std::endl;
}
void student::stuout()
{
    std::cout << "学号：" << num << std::endl ;
    std::cout << "姓名：" << name << std::endl ;
    std::cout << "性别：" << sex << std::endl ;
    std::cout << "年级：" << grade << std::endl ;
    std::cout << "电话：" << tnum << std::endl ;
}


student.h


#ifndef STUDENT_H_INCLUDED
#define STUDENT_H_INCLUDED
#endif  STUDENT_H_INCLUDED
class student
{
public:
    long num,tnum;
    std::string name,sex;
    int grade;
public:
    void stuin();
    void stuout();
};


求解求解！！！！！！！！！！！

#include "student.cpp"
在MAIN()前面加上

老师说为保护代码不被查看，不能加include"student.cpp"，源文件之间不用加这个

main.cpp

#include "student.h"
using namespace std;
int main()
{
    student stu;
    stu.stuin();
    stu.stuout();
    return 0;
}

studend.h

#ifndef STUDENT_H_INCLUDED
#define STUDENT_H_INCLUDED

#include <string>

class student
{
public:
    long num,tnum;
    std::string name,sex;
    int grade;
public:
    void stuin();
    void stuout();
};


#endif  STUDENT_H_INCLUDED

student.cpp

#include "student.h"
#include <iostream>
void student::stuin()
{
    std::cout << "学号：" ;
    std::cin >> num;
    std::cout << "姓名：" ;
    std::cin >> name;
    std::cout << "性别：" ;
    std::cin >> sex;
    std::cout << "年级：" ;
    std::cin >> grade;
    std::cout << "电话：" ;
    std::cin >> tnum;
    std::cout << "************************" << std::endl;
}
void student::stuout()
{
    std::cout << "学号：" << num << std::endl ;
    std::cout << "姓名：" << name << std::endl ;
    std::cout << "性别：" << sex << std::endl ;
    std::cout << "年级：" << grade << std::endl ;
    std::cout << "电话：" << tnum << std::endl ;
}

 

不行，我在codeblocks里面运行，还是出现 同样地情况，我同学在VS里面改的和你一样能运行，但是这样改在codeblocks里面就运行不了

public:
    long num,tnum;
    std::string name,sex;
    int grade;
改为试试：
private:
    long num,tnum;
    std::string name,sex;
    int grade;

 #include <string>
 #include "tdudent.h"
 using namespace std;
 int main()
 {
     student stu;
     stu.stuin();
     stu.stuout();
     return 0;
 }

、、、、、、、、、、、、、、、、、、
#ifndef TDUDENT_H_INCLUDED
#define TDUDENT_H_INCLUDED



 class student
 {
 public:
     long num,tnum;
     std::string name,sex;
     int grade;
 public:
     void stuin();
     void stuout();
 };


#endif // TDUDENT_H_INCLUDED
、、、、、、、、、、、、、、、、、
#include <iostream>
#include "tdudent.h"
 void student::stuin()
 {
     std::cout << "学号：" ;
     std::cin >> num;
     std::cout << "姓名：" ;
     std::cin >> name;
     std::cout << "性别：" ;
     std::cin >> sex;
     std::cout << "年级：" ;
     std::cin >> grade;
     std::cout << "电话：" ;
     std::cin >> tnum;
     std::cout << "************************" << std::endl;
 }
 void student::stuout()
 {
     std::cout << "学号：" << num << std::endl ;
     std::cout << "姓名：" << name << std::endl ;
     std::cout << "性别：" << sex << std::endl ;
     std::cout << "年级：" << grade << std::endl ;
     std::cout << "电话：" << tnum << std::endl ;
 }
、、、、、、、、、、、、、、
我编译没问题啊，这是源码

你是用的vs吧，在VS里面能编译通过，在codeblocks里面就不能通过

这个问题我也遇到了,不是程序的问题,只要是多文件的工程,在VC6下通过编译,在CodeBlocks下都提示说Undefined reference to .....,百度过了,还是没解决,说要安装一个qt什么的.