C++实现单例模式

 1 #include <stdio.h>
 2 //单例模式
 3 class Singleton
 4 {
 5 private:
 6     Singleton(){}
 7     ~Singleton(){delete singleton;}
 8     static Singleton *singleton;
 9 public:
10     static Singleton *GetInstance()
11     {
12         return singleton;
13     }
14 };
15 Singleton *Singleton::singleton=new Singleton;//静态变量初始化
16 void main()
17 {
18     Singleton *singleton1=Singleton::GetInstance();
19     Singleton*singleton2=Singleton::GetInstance();
20     printf("%s\n",singleton1==singleton2?"true":"false");
21 }