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#include <iostream.h>
class student;
class teacher
{public:
void grade(student &s);
protected:
int noofstudent;};
class student
{public:
friend void teacher::grade(student &s);
protected:
int hour;
float gpa;
};
void teacher::grade(student &s)
{s.gpa=4.0;
cout<< <<endl;}
该如何输出gpa的值，代码怎么写
class student;
class teacher
{public:
void grade(student &s);
protected:
int noofstudent;};
class student
{public:
friend void teacher::grade(student &s);
protected:
int hour;
float gpa;
};
void teacher::grade(student &s)
{s.gpa=4.0;
cout<< <<endl;}
该如何输出gpa的值，代码怎么写
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dudu妈 2005-03-29
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科比无处不在！！！
winwhilse 2005-03-28
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没看到什么问题啊~直接访问输出啊
stupidfish2004 2005-03-27
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#include <iostream.h>
class student;
class teacher
{public:
void grade(student &s);
protected:
int noofstudent;};
class student
{public:
friend void teacher::grade(student &s);
protected:
int hour;
float gpa;
};
void teacher::grade(student &s)
{s.gpa=4.0;
cout<<s.gpa <<endl;}
void main()
{
student st;
teacher te;
te.grade(st);
class student;
class teacher
{public:
void grade(student &s);
protected:
int noofstudent;};
class student
{public:
friend void teacher::grade(student &s);
protected:
int hour;
float gpa;
};
void teacher::grade(student &s)
{s.gpa=4.0;
cout<<s.gpa <<endl;}
void main()
{
student st;
teacher te;
te.grade(st);
oyljerry 2005-03-27
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友元就是用来访问私有变量的
平庸老鱼 2005-03-27
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对啊,我试了一下,没有什么问题啊,我用的vc6
kobefly 2005-03-27
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既然是友员就可以访问它的私有变量啊
直接输出就可以了啊
cout<<s.gpa <<endl;
直接输出就可以了啊
cout<<s.gpa <<endl;
