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#2
flyingcloude2009-10-31 22:19
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//Time.h
class Date;
class Time
{
public:
Time(int,int,int );
void display(const Date&);
virtual ~Time();
private:
int hour;
int minute;
int sec;
};
//Date.h
class Time;
class Date
{ friend class Time;
public:
Date(int,int,int);
virtual ~Date();
private:
int month;
int day;
int year;
};
//Time.cpp
Time::Time(int h,int m,int s)
{
hour=h;
minute=m;
sec=s;
}
Time::~Time()
{
}
void display( const Date & d)
{
cout<<d.month<<"/"<<d.day<<"/"<<d.year<<endl;
cout<<hour<<"/"<<minute<<"/"<<sec<<endl;
}
//Date.cpp
Date::Date(int m,int d,int y)
{
month=m;
day=d;
year=y;
}
Date::~Date()
{
}
//主函数
#include"Date.h"
#include"Time.h"
int main()
{
Time t1(10,13,56);
Date d1(12,15,2004);
t1.display(d1);
return 0;
}
我用的是vc++环境为什么总提示下列错误啊，各位高手多指教啊
Compiling...
Time.cpp
D:\c++\ex3_h11\Time.cpp(26) : error C2248: 'month' : cannot access private member declared in class 'Date'
d:\c++\ex3_h11\date.h(21) : see declaration of 'month'
D:\c++\ex3_h11\Time.cpp(26) : error C2248: 'day' : cannot access private member declared in class 'Date'
d:\c++\ex3_h11\date.h(22) : see declaration of 'day'
D:\c++\ex3_h11\Time.cpp(26) : error C2248: 'year' : cannot access private member declared in class 'Date'
d:\c++\ex3_h11\date.h(23) : see declaration of 'year'
D:\c++\ex3_h11\Time.cpp(27) : error C2065: 'hour' : undeclared identifier
D:\c++\ex3_h11\Time.cpp(27) : error C2065: 'minute' : undeclared identifier
D:\c++\ex3_h11\Time.cpp(27) : error C2065: 'sec' : undeclared identifier
Error executing cl.exe.