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来源：互联网发布：星际公民2.6.3优化编辑：程序博客网时间：2024/05/22 13:11
#include<iostream>#include<string>using namespace std;class Time{  public:    Time(int h=0,int m=0,int s=0);    //构造函数    Time operator+(Time&);            //运算符重载函数    void disptime(string);            //输出时间函数  private:    int hours;         //小时int minutes;       //分钟int seconds;       //秒钟};Time::Time(int h,int m,int s)                { hours=h;if ( h<0){ cout<<"时钟数小于0,请修正"<<endl;  exit(0);}  minutes=m;  if ( m>=60||m<0){ cout<<"分钟数小于0或大于等于60,请修正"<<endl;  exit(0);}seconds=s;  if (seconds>=60||seconds<0){ cout<<"秒钟数小于0或大于等于60,请修正"<<endl;exit(0);}}Time Time::operator+(Time& time){ int h,m,s;  s=time.seconds+seconds;  m=time.minutes+minutes+s/60;  h=time.hours+hours+m/60;  Time sum_time(h,m%60,s%60);     return sum_time;                }void Time::disptime(string str){ cout<<str;  cout<<hours<<":"<<minutes<<":"<<seconds<<endl;}int main(){ Time t1(2,45,40),t2(21,28,34),t3;  t1.disptime("时间1是:");t2.disptime("时间2是:"); t3=t1+t2; t3.disptime("两个时间之和是:");return 0;}
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