摘要： 1 观察者：#include "Watcher.h"Watcher::Watcher(string name){ this->name=name;}Watcher::Watcher(const Watcher &watcher)//必须实现拷贝构造函数，才能放到容器里{ this->name=watcher.name;}Watcher::~Watcher(void){}string Watcher::getname(){ return name;}void Watcher::update(){ std::coutgetname()) {allwatche 阅读全文