context.cpp

c++程序

//context.cpp
#include "Context.h" 
#include "State.h"

Context::Context() 
{
}

Context::Context(State* state) 
{ 
	this->_state = state; 
}

Context::~Context() 
{ 
	delete _state; 
}

void Context::OprationInterface() 
{
	_state->OperationInterface(this); 
}

bool Context::ChangeState(State* state) 
{ 
//	_state->ChangeState(this,state); 
	this->_state = state;
	return true; 
}

void Context::OperationChangState() 
{ 
	_state->OperationChangeState(this);
}