摘要:
#include using namespace std;class Chain{public: bool Handle() { return false; }};class Level1 : public Chain{public: bool Handle() { ... 阅读全文
摘要:
#include using namespace std;#define DESTROY_POINTER(ptr) if (ptr) { delete ptr; ptr = NULL; }class Context;class DbState{public: DbState(Context* ... 阅读全文