错误代码:
#include<iostream>
using namespace std;
class Time
{
protected:
double hour;
double minute;
double second;
public:
Time(double _hour = 0.0, double _minute = 0.0, double _second = 0.0);
Time(const Time& time);
double sethour(double _hour);
double setminute(double _minute);
double setsecond(double _second);
double gethour()const;
double getminute()const;
double getsecond()const;
void print()const;
};
Time::Time(double _hour = 0.0, double _minute = 0.0, double _second = 0.0)
{
hour = _hour;
minute = _minute;
second = _second;
}
Time::Time(const Time& time)
{
hour = time.hour;
minute = time.minute;
second = time.second;
}
double Time::sethour(double _hour)
{
hour = _hour;
}
double Time::setminute(double _minute)
{
minute = _minute;
}
double Time::setsecond(double _second)
{
second = _second;
}
double Time::gethour()const
{
return hour;
}
double Time::getminute()const
{
return minute;
}
double Time::getsecond()const
{
return second;
}
void Time::print()const
{
cout << hour << "时" << minute << "分" << second << "秒";
}
int main()
{
Time a1(1,2,3);
a1.print();
Time a2 = a1;
a2.print();
Time a3(0,0,0);
a3.sethour(11);
a3.setminute(4);
a3.setsecond(55);
Time a4 = a3;
a3.print();
a4.print();
return 0;
}
Time::Time(double _hour, double _minute, double _second)
{
hour = _hour;
minute = _minute;
second = _second;
}
默认参数只需要在第一次声明的时候写就行了
声明一次
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