基础上定义构造成员函数

 1 #include <iostream>
 2 
 3 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 4 using namespace std;
 5 class Time
 6 {
 7     public:
 8         Time()
 9         {
10             hour=0;
11             minute=0;
12             sec=0;
13         }
14     void set_time();
15     void show_time();
16     private:
17         int hour;
18         int minute;
19         int sec;
20 };
21 
22 void Time::set_time()
23 {
24     cin>>hour;
25     cin>>minute;
26     cin>>sec;
27 }
28 
29 void Time::show_time()
30 {
31     cout<<hour<<":"<<minute<<":"<<sec<<endl;
32 }
33 
34 int main(int argc, char** argv) {
35     Time t1;
36     t1.set_time();
37     t1.show_time();
38     Time t2;
39     t2.show_time();
40     return 0;
41 }