在提出桥梁模式的时候指出，桥梁模式的用意是"将抽象化(Abstraction)与实现化(Implementation)脱耦，使得二者可以独立地变化"。这句话有三个关键词，也就是抽象化、实现化和脱耦。
将两个角色之间的继承关系改为聚合关系，就是将它们之间的强关联改换成为弱关联。因此，桥梁模式中的所谓脱耦，就是指在一个软件系统的抽象化和实现化之间使用组合/聚合关系而不是继承关系，从而使两者可以相对独立地变化。这就是桥梁模式的用意。
在使用VIM 编写makefile时，有时TAP键会是八个空格，使用set list命令可以查看所有的TAB键是否正确。
makefile文件
计算
安全
数据库
网络和加速
企业服务
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 BrigeCAbstraction.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;
};
#endifCCircleRefined
#ifndef CCircleRefinedH
#define CCircleRefinedH
#include "CAbstraction.h"
class CCircleRefined:public CAbstractiong
{
public:
CCircleRefined(){};
~CCircleRefined(){};
void Operation();
};
#endif
#include "CCircleRefined.h"
void CCircleRefined::Operation()
{
cout<<"对圆形进行了"<<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<<"对正方形进行了"<<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;
};
#endifCDrawSquare
#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 ="进行了画方格操作";
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 = "进行了画线操作";
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;
}免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
