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例4-1
#include<iostream>
using namespace std;
class Clock {
public:
void setTime(int newH=0,int newM=0,int newS=0);
void showTime();
private:
int hour,minute,second;
};
void Clock::setTime(int newH,int newM,int newS)
{
hour=newH;
minute=newM;
second=newS;
}
inline void Clock::showTime() {
cout<<hour<<":"<<minute<<":"<<second<<endl;
}
int main() {
Clock myClock;
cout<<"First time set and output:"<<endl;
myClock.setTime();
myClock.showTime();
cout<<"Second time set and output:"<<endl;
myClock.setTime(8,30,30);
myClock.showTime();
return 0;
}