将抽象部分与它的实现部分分离,使它们都可以独立地变化。考虑装操作系统,有多种配置的计算机,同样也有多款操作系统。如何运用桥接模式呢?可以将操作系统和计算机分别抽象出来,让它们各自发展,减少它们的耦合度。当然了,两者之间有标准的接口。这样设计,不论是对于计算机,还是操作系统都是非常有利的。
#include
#include
using namespace std; //操作系统 class OS {
public: virtual void InstallOS_Imp() {
} }; class WindowOS : public OS {
public: void InstallOS_Imp() {
cout << "安装Window操作系统" << endl; } }; class LinuxOS : public OS {
public: void InstallOS_Imp() {
cout << "安装Linux操作系统" << endl; } }; class UnixOS : public OS {
public: void InstallOS_Imp() {
cout << "安装Unix操作系统" << endl; } }; //计算机 class Computer {
public: virtual void InstallOS(OS *os) {
} }; class DellComputer : public Computer {
public: void InstallOS(OS *os) {
os->InstallOS_Imp(); } }; class AppleComputer : public Computer {
public: void InstallOS(OS *os) {
os->InstallOS_Imp(); } }; class HPComputer : public Computer {
public: void InstallOS(OS *os) {
os->InstallOS_Imp(); } }; int main() {
OS *os1 = new WindowOS(); OS *os2 = new LinuxOS(); Computer *computer1 = new AppleComputer(); computer1->InstallOS(os1); computer1->InstallOS(os2); getchar(); return 0; }

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