?? state.h
字號:
/********************************************************************
created: 2006/08/05
filename: State.h
author: 李創
http://www.cppblog.com/converse/
purpose: State模式的演示代碼
*********************************************************************/
#ifndef STATE_H
#define STATE_H
class State;
class Context
{
public:
Context(State* pState);
~Context();
void Request();
void ChangeState(State *pState);
private:
State *m_pState;
};
class State
{
public:
virtual ~State(){}
virtual void Handle(Context* pContext) = 0;
};
class ConcreateStateA
: public State
{
public:
void Handle(Context* pContext);
};
class ConcreateStateB
: public State
{
public:
void Handle(Context* pContext);
};
#endif
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