1 #include <iostream> 2 using namespace std; 3  4 class Time 5 { 6 private: 7     int hour; 8     int minute; 9     int second;10 public:11     //Time() //无参够创函数12     //{13     //    hour = 0; minute = 0; second = 0;14     //}15     //Time(int h, int m, int s) //带参构造函数16     //{17     //    hour = h; minute = m; second = s;18     //}19     Time(int h = 0, int m = 0, int s = 0) : hour(h), minute(m), second(s){} //带参数初始化表的构造函数20     void Set(int h, int m, int s);21     void Show();22 };23 24 void Time::Set(int h, int m, int s)25 {26     hour = h; minute = m; second = s;27 }28 void Time::Show()29 {30     cout << hour << ":" << minute << ":" << second << endl;31 }32 33 int main()34 {35     Time t1;36     t1.Show();37     t1.Set(6, 18, 16);38     t1.Show();39 40     Time t2(12, 11, 10);41     t2.Show();42 43     return 0;44 }