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1、声明一个 Time 类，实现重载“+”实现两时间相加；重载+运算符实现实现的前置自增和后置自增。程序代码如下： Time.h #includeclass timepublic:time(int h=0,int m=0,int s=0):hour(h),minute(m),second(s) friend time operator+(time &t1,time &t2);time operator+(); time operator+(int); void print();private:;int hour; int minute; int second;Time.cpp#include“ti
2、me.h“time operator+(time &t1,time &t2)int hour=t1.hour+t2.hour;int minute=t1.minute+t2.minute; int second=t1.second+t2.second;if(second=60)second-=60; minute+;if(minute=60)minute-=60; hour+;if(hour=24)cout“超过范围“=60)second=0; minute+;if(minute=60)minute=0; hour+;if(hour=24)cout“超过范围“=60)second=0; min
3、ute+;if(minute=60)minute=0; hour+;if(hour=24)cout“超过范围“endl; return 0;return temp;void time:print()couthour“:“minute“:“secondendl;Main.cpp#include“time.h“ int main()time t1(13,02,49),t2(10,57,01),t;t=t1+t2; cout“t=t1+t2=“; t.print(); coutendl;time t3;t3=t+;cout“t3=t+=“; t3.print(); cout“t=“; t.print();coutendl;time t4; t4=+t;cout“t4=+t=“; t4.print(); cout“t=“; t.print();coutendl;
