Singleton.h

////  Singleton.h//  Singleton////  Created by Cheney Shen on 11-2-20.//  Copyright 2011年 __MyCompanyName__. All rights reserved.//#ifndef _SINGLETON_H_#define _SINGLETON_H_#include 
     
      using namespace std;class Singleton{    public:    static Singleton* Instance();        protected:    Singleton();        private:    static Singleton* _instance;    };#endif  //~_SINGLETON_H_
     

Singleton.cpp

////  Singleton.cpp//  Singleton////  Created by Cheney Shen on 11-2-20.//  Copyright 2011年 __MyCompanyName__. All rights reserved.//#include "Singleton.h"#include 
     
      using namespace std;Singleton* Singleton::_instance = 0;Singleton::Singleton(){    cout<<"Singleton..."<
     

main.cpp

////  main.cpp//  Singleton////  Created by Cheney Shen on 11-2-20.//  Copyright 2011年 __MyCompanyName__. All rights reserved.//#include "Singleton.h"#include 
     
      using namespace std;int main (int argc, const char * argv[]) {    Singleton* sgn = Singleton::Instance();        return 0;}