橋接模式

在提出橋梁模式的時(shí)候指出，橋梁模式的用意是"將抽象化(Abstraction)與實(shí)現(xiàn)化(Implementation)脫耦，使得二者可以獨(dú)立地變化"。這句話有三個關(guān)鍵詞，也就是抽象化、實(shí)現(xiàn)化和脫耦。

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抽象化

實(shí)現(xiàn)化

脫耦

在使用VIM 編寫makefile時(shí)，有時(shí)TAP鍵會是八個空格，使用set list命令可以查看所有的TAB鍵是否正確。

makefile文件

aLL:Brige
CC = g++
INCLUDE = .
CFLAGS = -g -Wall
Brige:main.o CDrawLine.o CDrawSquare.o CSqureRefined.o CCircleRefined.o
        $(CC) -o Brige main.o CDrawLine.o CDrawSquare.o CSqureRefined.o CCircleRefined.o
CDrawSquare.o:CDrawSquare.cpp CDrawSquare.h  CImplement.cpp
        $(CC) -I$(INCLUDE) $(CFLAGS) -c CDrawSquare.cpp
CDrawLine.o:CDrawLine.cpp CDrawLine.h
        $(CC) -I$(INCLUDE) $(CFLAGS) -c CDrawLine.cpp
CSqureRefined.o:CSqureRefined.cpp CSqureRefined.h
        $(CC) -I$(INCLUDE) $(CFLAGS) -c CSqureRefined.cpp
CCircleRefined.o:CCircleRefined.cpp CCircleRefined.h
        $(CC) -I$(INCLUDE) $(CFLAGS) -c CCircleRefined.cpp
main.o:main.cpp
        $(CC) -I$(INCLUDE) $(CFLAGS) -c main.cpp
clean:
 rm *.o
        rm Brige

CAbstraction.h

#ifndef CAbstractiongH
#define CAbstractiongH
#include<iostream>
#include "CImplement.h"
using namespace std;
class CAbstractiong
{
public:
      virtual  ~CAbstractiong(){};
      virtual void Operation() = 0;
      void SetImplement(CImplement *tImplement){m_CImplement = tImplement;};
protected:
      CAbstractiong(){};
      CImplement *m_CImplement;
};
#endif

CCircleRefined

#ifndef CCircleRefinedH
#define CCircleRefinedH
#include "CAbstraction.h"
class CCircleRefined:public CAbstractiong
{
public:
       CCircleRefined(){};
      ~CCircleRefined(){};
       void  Operation();
                                      
};
#endif
#include "CCircleRefined.h"
void  CCircleRefined::Operation()
{
  cout<<"對圓形進(jìn)行了"<<m_CImplement->Operation()<<endl;
}

CSqureRefined

#ifndef CSqureRefinedH
#define CSqureRefinedH
#include "CAbstraction.h"
class CSqureRefined:public CAbstractiong
{
public:
       CSqureRefined(){};
      ~CSqureRefined(){};
       void  Operation();
                               
};
#endif
#include "CSqureRefined.h"
void  CSqureRefined::Operation()
{
  cout<<"對正方形進(jìn)行了"<<m_CImplement->Operation()<<endl;
}

CAbstractiong

#ifndef CAbstractiongH
#define CAbstractiongH
#include<iostream>
#include "CImplement.h"
using namespace std;
class CAbstractiong
{
public:
      virtual  ~CAbstractiong(){};
      virtual void Operation() = 0;
      void SetImplement(CImplement *tImplement){m_CImplement = tImplement;};
protected:
      CAbstractiong(){};
      CImplement *m_CImplement;
};
#endif

CDrawSquare

#ifndef CDrawSquareH
#define CDrawSquareH
#include<iostream>
#include "CImplement.h"
class CDrawSquare:public CImplement
{
public:
       CDrawSquare(){};
       ~CDrawSquare(){};
      string Operation();
                
};
#endif
#include "CDrawSquare.h"
#include <iostream>
using namespace std;
string CDrawSquare::Operation()
{
   string sTemp ="進(jìn)行了畫方格操作";
   return sTemp;
}

CDrawLine

#ifndef CDrawLineH
#define CDrawLineH
#include<iostream>
#include <string>
#include "CImplement.h"
class CDrawLine:public CImplement
{
public:
       CDrawLine(){};
       ~CDrawLine(){};
      string Operation();
         
};
#endif
#include "CDrawLine.h"
#include <iostream>
using namespace std;
string CDrawLine::Operation()
{
   string sTemp = "進(jìn)行了畫線操作";
   return sTemp;
}

main.cpp

#include "CDrawLine.h"
#include "CDrawSquare.h"
#include "CSqureRefined.h"
#include "CCircleRefined.h"
int main()
{
  CDrawLine *pCDrawLine = new CDrawLine();
  CCircleRefined *pCCircleRefined = new CCircleRefined();
  pCCircleRefined->SetImplement(pCDrawLine);
  pCCircleRefined->Operation();
      
  CDrawSquare *pCDrawSquare = new CDrawSquare();
   pCCircleRefined->SetImplement(pCDrawSquare);
  pCCircleRefined->Operation();
  return 0;
}

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