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f0806.cpp
资源名称:c.rar [点击查看]
上传用户:puke2000
上传日期:2022-07-25
资源大小:912k
文件大小:1k
源码类别:
C#编程
开发平台:
Visual C++
- //==================================
- // f0806.cpp
- // class Time's operator++
- //==================================
- #include<iostream>
- #include<iomanip>
- using namespace std;
- //----------------------------------
- class Time{
- int hour, minute, second;
- public:
- void set(int h, int m, int s){ hour=h, minute=m, second=s; }
- friend Time& operator++(Time& a);
- friend Time operator++(Time& a, int);
- friend ostream& operator<<(ostream& o, const Time& t);
- };//-------------------------------
- Time& operator++(Time& a){
- if(!(a.second=(a.second+1)%60)&&!(a.minute=(a.minute+1)%60))
- a.hour=(a.hour+1)%24;
- return a;
- }//--------------------------------
- Time operator++(Time& a, int){
- Time t(a);
- if(!(a.second=(a.second+1)%60)&&!(a.minute=(a.minute+1)%60))
- a.hour=(a.hour+1)%24;
- return t;
- }//------------------------------------
- ostream& operator<<(ostream& o, const Time& t){
- o<<setfill('0')<<setw(2)<<t.hour<<":"<<setw(2)<<t.minute<<":";
- return o<<setw(2)<<t.second<<"n"<<setfill(' ');
- }//--------------------------------
- int main(){
- Time t;
- t.set(11, 59, 58);
- cout<<t++;
- cout<<++t;
- }//================================