2-2 Time类的定义

#include<iostream>#include <cstdio>//与printf有关的头文件（具体是啥我也不知道）using namespace std;class Time{private:int hour,min,sec;public:int sethour(int x){if( x < 0 || x > 12 )hour = 12 ;else hour = x ;return hour;}int setmin(int y){if( y < 0 || y > 60 )min = 0 ;else min = y ;return min ;}int setsec(int z){if( z < 0 || z > 60 )sec = 0 ;else sec = z ;return sec ;}void settime(int x, int y, int z){hour = x ;min = y ;sec = z ;}void showtime(){printf("%02d:%02d:%02d\n",hour,min,sec);//控制输出格式}};int main(){int x,y,z;Time t1;cin>>x>>y>>z;x = t1.sethour(x);y = t1.setmin(y);z = t1.setsec(z);t1.settime(x,y,z);t1.showtime();return 0 ;}