C++实现单例模式（懒汉式）源码

#include "Singleton.h" class CTest : public CSingleton < CTest > { public: CTest(){ id = 1; } ~CTest(){ } void SetId(int idx){ id = idx; } int GetId() { return id; } private: int id; }; int main() { CTest test; test.SetId(10); CTest test1 = CTest::GetSingleton(); CTest test2 = CTest::GetSingleton(); CTest* pTest1 = CTest::GetSingletonPtr(); int i = 0; return 0; }