责任链模式(数据结构)

来源：互联网发布：手机屏幕测试软件编辑：程序博客网时间：2024/06/05 09:40
#include<iostream>#include <string>using namespace std;//责任链模式：在责任链模式中，很多对象由每一个对象对其下家的引用而接起来形成//一条链。请求在这个链上传递，直到链上的某一个对象决定处理此请求。//客户并不知道链上的哪一个对象最终处理这个请求，系统可以在不影响客户端的//情况下动态的重新组织链和分配责任。处理者有两个选择：承担责任或者把责任//推给下家。一个请求可以最终不被任何接收端对象所接受。class Request  //请求{public:string requestType;string requestContent;int number;};class Manager  ///管理者{protected:string name;Manager *superior;public:Manager(string name){this->name = name;}void setSuperior(Manager *superior){this->superior = superior;}virtual void requestApplications(Request *request) = 0;};class CommonManager :public Manager  //经理{public:CommonManager(string name) :Manager(name){}void requestApplications(Request *request){if (request->requestType == "请假" && request->number <= 2){cout << name << " " << request->requestContent << " 数量: " << request->number << "被批准" << endl;}else{if (superior != NULL){superior->requestApplications(request);}}}};class Majordomo :public Manager  //总监{public:Majordomo(string name) :Manager(name){}void requestApplications(Request *request){if (request->requestType == "请假" && request->number <= 5){cout << name << " " << request->requestContent << " 数量: " << request->number << "被批准" << endl;}else{if (superior != NULL){superior->requestApplications(request);}}}};class GeneralManager :public Manager //总经理{public:GeneralManager(string name) :Manager(name){}void requestApplications(Request *request){if (request->requestType == "请假"){cout << name << " " << request->requestContent << " 数量: " << request->number << "被批准" << endl;}}};int main(){CommonManager *jinli = new CommonManager("经理");Majordomo *zongjian = new Majordomo("总监");GeneralManager *zhongjingli = new GeneralManager("总经理");jinli->setSuperior(zongjian);zongjian->setSuperior(zhongjingli);Request *request = new Request();request->requestType = "请假";request->requestContent = "李俊宏请假";request->number = 1;jinli->requestApplications(request);request->requestType = "请假";request->requestContent = "李俊宏请假";request->number = 4;jinli->requestApplications(request);request->requestType = "请假";request->requestContent = "李俊宏请假";request->number = 10;jinli->requestApplications(request);cin.get();return 0;}
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