关于在类的内部创建一个类的引用的问题
class Singleton{
public:
static Singleton *GetInstance()
{
return m_Instance;
}
int GetTest()
{
return m_Test;
}
private:
Singleton(){ m_Test = 10; }
static Singleton *m_Instance;
int m_Test;
// This is important
class GC
{
public :
~GC()
{
// We can destory all the resouce here, eg:db connector, file handle and so on
if (m_Instance != NULL )
{
cout<< "Here is the test" <<endl;
delete m_Instance;
m_Instance = NULL ;
}
}
};
static GC gc;
};
Singleton *Singleton ::m_Instance = new Singleton();
Singleton ::GC Singleton ::gc;//此时在类外部用gc不应该是Singleton ::gc？为什么要加GC Singleton
