2024.11.14（周四）

某物资管理系统中物资采购需要分级审批，主任可以审批1万元及以下的采购单，部门经理可以审批5万元及以下的采购单，副总经理可以审批10万元及以下的采购单，总经理可以审批20万元及以下的采购单，20万元以上的采购单需要开职工大会确定。现用职责链模式设计该系统。

实验要求：

1. 提交类图；

2. 提交源代码；

3. 注意编程规范。

 

 

1、类图

 

 

2、源代码

#include<iostream>

#include<string>

using namespace std;

 

class PurchaseRequest {

private:

       int type;

       float price;

       int id;

 

public:

       PurchaseRequest(int type, float price, int id) {

              this->type = type;

              this->price = price;

              this->id = id;

       }

 

       float GetPrice() {

              return this->price;

       }

 

       int GetId() {

              return this->id;

       }

 

       void Print() {

              cout << this->GetId() << "号物资" << this->GetPrice() << "元";

       }

};

 

class Approver {

protected:

       Approver* approver;

       string position;

 

public:

       Approver(string position) {

              this->position = position;

       }

 

       void SetApprover(Approver* approver) {

              this->approver = approver;

       }

 

       virtual void ProcessRequest(PurchaseRequest* purchaseRequest) = 0;

};

 

class Director :public Approver {

public:

       Director(string position) :Approver(position) {}

 

       void SetApprover(Approver *approver) {

              this->approver = approver;

       }

 

       void ProcessRequest(PurchaseRequest* purchaseRequest) {

              if (purchaseRequest->GetPrice() <= 10000.0)

              {

                     cout << "请求编号id =>" << purchaseRequest->GetId() << "被" << this->position << "处理了" << endl;

              }

              else {

                     approver->ProcessRequest(purchaseRequest);

              }

       }

};

 

class DepartmentManager :public Approver {

public:

       DepartmentManager(string position) :Approver(position) {}

 

       void SetApprover(Approver* approver) {

              this->approver = approver;

       }

 

       void ProcessRequest(PurchaseRequest* purchaseRequest) {

              if (purchaseRequest->GetPrice() > 10000.0 && purchaseRequest->GetPrice() <= 50000.0) {

                     cout << "请求编号id =>" << purchaseRequest->GetId() << "被" << this->position << "处理了" << endl;

 

              }

              else {

                     approver->ProcessRequest(purchaseRequest);

              }

       }

};

 

class ViceManager :public Approver {

public:

       ViceManager(string position) :Approver(position) {}

 

       void SetApprover(Approver* approver) {

              this->approver = approver;

       }

 

       void ProcessRequest(PurchaseRequest* purchaseRequest) {

              if (purchaseRequest->GetPrice() > 50000.0 && purchaseRequest->GetPrice() <= 100000.0) {

                     cout << "请求编号id =>" << purchaseRequest->GetId() << "被" << this->position << "处理了" << endl;

              }

              else {

                     approver->ProcessRequest(purchaseRequest);

              }

       }

};

 

class GeneralManager :public Approver {

public:

       GeneralManager(string position) :Approver(position) {}

 

       void SetApprover(Approver* approver) {

              this->approver = approver;

       }

 

       void ProcessRequest(PurchaseRequest* purchaseRequest) {

              if (purchaseRequest->GetPrice() > 100000.0 && purchaseRequest->GetPrice() <= 200000.0) {

                     cout << "请求编号id =>" << purchaseRequest->GetId() << "被" << this->position << "处理了" << endl;

 

              }

              else {

                     cout << "需要开员工大会决定" << endl;

              }

       }

};

 

int main() {

       PurchaseRequest* purchaseRequest1 = new PurchaseRequest(1, 5600, 1);

       PurchaseRequest* purchaseRequest2 = new PurchaseRequest(1, 25620, 2);

       PurchaseRequest* purchaseRequest3 = new PurchaseRequest(1, 96541, 3);

       PurchaseRequest* purchaseRequest4 = new PurchaseRequest(1, 152345, 4);

       PurchaseRequest* purchaseRequest5 = new PurchaseRequest(1, 235685, 5);

 

       Director* director = new Director("主任");

       DepartmentManager* departmentManager = new DepartmentManager("部门经理");

       ViceManager* viceManager = new ViceManager("副总经理");

       GeneralManager* generalManager = new GeneralManager("总经理");

 

       director->SetApprover(departmentManager);

       departmentManager->SetApprover(viceManager);

       viceManager->SetApprover(generalManager);

 

       cout << purchaseRequest1->GetId() << "金额" << purchaseRequest1->GetPrice() << endl;

       director->ProcessRequest(purchaseRequest1);

       cout << "---------------------------------------" << endl;

 

       cout << purchaseRequest2->GetId() << "金额" << purchaseRequest2->GetPrice() << endl;

       director->ProcessRequest(purchaseRequest2);

       cout << "---------------------------------------" << endl;

      

       cout << purchaseRequest3->GetId() << "金额" << purchaseRequest3->GetPrice() << endl;

       director->ProcessRequest(purchaseRequest3);

       cout << "---------------------------------------" << endl;

 

       cout << purchaseRequest4->GetId() << "金额" << purchaseRequest4->GetPrice() << endl;

       director->ProcessRequest(purchaseRequest4);

       cout << "---------------------------------------" << endl;

 

       cout << purchaseRequest5->GetId() << "金额" << purchaseRequest5->GetPrice() << endl;

       director->ProcessRequest(purchaseRequest5);

       cout << "---------------------------------------" << endl;

}