c++简单程序出错，看看

来源：百度知道 编辑：UC知道 时间：2024/06/17 04:39:10
#include <iostream>
using namespace std;
class Time;
class Date
{public:
friend Time;
Date(int,int,int);
private:
int month;
int day;
int year;
};
class Time
{public:
Time (int=10,int=13,int=56);
void display(Date &d)
{cout<<hour<<": "<<minute<<": "<<sec<<endl;
cout<<d.month<<d.day<<d.year<<endl;}
private:
int hour;
int minute;
int sec;
};

Time::Time(int h,int m,int s):hour(h),minute(m),sec(s){}
Date::Date(int mo,int d,int y):month(mo),day(d),year(y){}
int main()
{Time t1(1,1,1);
Date d1(12,25,2004);
display(d1);
getchar();
return 0;
}

#include <iostream>
using namespace std;
class Time;
class Date
{public:
friend Time;
Date(int,int,int);
private:
int month;
int day;
int year;
};
class Time
{public:
Time (int=10,int=13,int=56);
void display(Date &d)
{cout<<hour<<": "<<minute<<": "<<sec<<endl;
cout<<d.month<<d.day<<d.year<<endl;}
private:
int hour;
int minute;
int sec;
};
Time::Time(int h,int m,int s):hour(h),minute(m),sec(s){}
Date::Date(int mo,int d,int y):month(mo),day(d),year(y){}
int main()
{
Time t1(1,1,1);
Date d1(12,25,2004);
t1.display(d1);
getchar();
return 0;
}
以上是正确的代码
修改的地方为31行.
你是直接调用dispay函数.
所以会错误.
楼上那句是没有什么错误的.那是所谓的"认的初始