设计模式——外观模式（C++实现）

 #include <string>
 #include <iostream>

 using namespace std;

 class STSystemA
 {
 public:
         void OperationA()
         {
                 cout<< "System A Operation....."<< endl;
         }
 };

 class STSystemB
 {
 public:
         void OperationB()
         {
                 cout<< "System B Operation....."<< endl;
         }
 };

 class STSystemC
 {
 public:
         void OperationC()
         {
                 cout<< "System C Operation....."<< endl;
         }
 };

 class STFacade
 {
 public:
         STFacade()
         {
                 m_stSystemA = new STSystemA();
                 m_stSystemB = new STSystemB();
                 m_stSystemC = new STSystemC();
         }

         virtual ~STFacade()
         {
                 delete m_stSystemA;
                 delete m_stSystemB;
                 delete m_stSystemC;
         }

         void Operation()
         {
                 m_stSystemA->OperationA();
                 m_stSystemB->OperationB();
                 m_stSystemC->OperationC();
         }

         STSystemA* m_stSystemA;
         STSystemB* m_stSystemB;
         STSystemC* m_stSystemC;

 };

 int main(int argc, char* argv[])
 {
         STFacade* stFacade = new STFacade();
         stFacade->Operation();

         delete stFacade;

         return ;
 }
 /////////////////////////////////////
 [root@ ~/learn_code/design_pattern/11_facade]$ ./facade
 System A Operation.....
 System B Operation.....
 System C Operation.....