类的声明示例 class Clock public: void setTime (int NeWH, int NeWM, int NewS); void showTime o; private: int hour, minute, second; Clock x;//声明对象 Clock 1313 类的声明示例 class Clock { public: void setTime(int NewH, int NewM, int NewS); void showTime(); private: int hour, minute, second; }; Clock x; // 声明对象 Clock y, z;