设计模式(16) 观察者模式（OBSERVER）C++实现(二)
C",
96 "playing games",
97 "pay the fee and run to classroom");
98 RoomMate* D = new RoomMate("D",
99 "shopping with girl friend",
100 "go back to school and be worried about girl friend's angry");
101
102 QQGroup* qqgroup = new QQGroup();
103 qqgroup->
registerObsvr(B);
104 qqgroup->registerObsvr(C);
105 qqgroup->registerObsvr(D);
106
107 qqgroup->notifyObsvrs("目前没点名");
108 qqgroup->notifyObsvrs("点名了");
109
110 system("Pause");
111 return 0;
112 }