C++爱好者 - 网友留言

#include
using namespace std;
class clock
{
public:
clock();
clock(int newH,int newM,int newS);//没见过可以带缺省值的,還有構造函數不可以用void
void showtime();
clock operator++();//前置＋＋运算符//>
clock operator++(int x);//后置＋＋运算符，要带(int)参数，无意义
private:
int Hour,Minute,Second;
};
/////////////////////////////////////////
clock::clock(){Hour=Minute=Second=0;}

clock::clock(int newH,int newM,int newS)
{
////////hour

Hour=newH%24;

////////minute

Minute=newM%60;

////////second

Second=newS%60;

}
clock clock::operator++()//＋＋a的时候调用这个
{
++Second;
if(Second>59)
{
Second=1;++Minute;
if(Minute>59)
{Minute=1;

++Hour;}}
cout<<"++a"<
Hour=Hour%24;
return *this;
}

void clock::showtime()
{
cout<<"Hour : "<    <<"Minute: "<<<"Second : "<}
void main()
{
clock myclock(23,45,100);
myclock.showtime();
++myclock;
myclock.showtime();
}

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