#include "concretesubject.h"
#include "iobserver.h"
#include <iostream>
ConcreteSubject::ConcreteSubject()
{
mPObservers.clear();
}
void ConcreteSubject::add(IObserver *observer)
{
if (!observer)
{
return ;
}
mPObservers.push_back(observer);
std::cout << "ConcreteSubject add IObserver, key: ";
std::cout << observer->getKey() << std::endl;
}
void ConcreteSubject::remove(IObserver *observer)
{
if (!observer)
{
return ;
}
std::cout << "ConcreteSubject remove IObserver, key: ";
std::cout << observer->getKey() << std::endl;
for (auto it = mPObservers.begin(); it != mPObservers.end(); it++)
{
if (*it == observer)
{
mPObservers.erase(it);
return;
}
}
}
void ConcreteSubject::notifyObserver()
{
for (IObserver *observer : mPObservers)
{
observer->response();
}
}
c++设计模式-行为型模式-观察者模式
需积分: 0 61 浏览量
2022-06-21
22:00:36
上传
评论
收藏 2KB 7Z 举报
Observer.7z （10个子文件） 
Observer 
main.cpp 925B concretesubject.cpp 962B iobserver.h 558B Observer.pro 937B isubject.h 597B concreteobserver1.cpp 407B concretesubject.h 713B concreteobserver2.cpp 407B concreteobserver2.h 520B concreteobserver1.h 520B
评论0