11.12实验15：职责链模式

[实验任务一]：财务审批

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；

#include<iostream>

using namespace std;

#include<string>

//抽象管理者

class Manager

{

protected:

    Manager *m_manager;

    string m_name;

public:

    Manager(Manager *manager, string name) :m_manager(manager), m_name(name){}

    virtual void DealWithRequest(string name, int num)  {}

};

//主任

class Director : public Manager

{

public:

    Director(Manager *manager, string name) :Manager(manager, name) {}

    void DealWithRequest(string name, int num)

    {

        if (num < 10000) //主任职权之内

        {

            cout << "主任" << m_name << "审批采购单：" << name << "，采购金额：" << num << "元" << endl << endl;

        }

        else

        {

            cout << "主任" << m_name << "无法处理，交由部门经理处理" << endl;

            m_manager->DealWithRequest(name, num);

        }

    }

};

//部门经理

class CommonManager : public Manager

{

public:

    CommonManager(Manager *manager, string name) :Manager(manager, name) {}

    void DealWithRequest(string name, int num)

    {

        if (num < 50000) //部门经理职权之内

        {

            cout << "部门经理" << m_name << "审批采购单：" << name << "，采购金额：" << num << "元" << endl << endl;

        }

        else

        {

            cout << "部门经理" << m_name << "无法处理，交由副总经理处理" << endl;

            m_manager->DealWithRequest(name, num);

        }

    }

};

//副总经理

class  VicePresident : public Manager

{

public:

    VicePresident(Manager *manager, string name) :Manager(manager, name) {}

    void DealWithRequest(string name, int num)

    {

        if (num < 100000) //副总经理职权之内

        {

            cout << "副总经理" << m_name << "审批采购单：" << name << "，采购金额：" << num << "元" << endl << endl;

        }

        else

        {

            cout << "副总经理" << m_name << "无法处理，交由总经理处理" << endl;

            m_manager->DealWithRequest(name, num);

        }

    }

};

//总经理

class  President : public Manager

{

public:

    President(Manager *manager, string name) :Manager(manager, name) {}

    void DealWithRequest(string name, int num)

    {

        if (num < 200000) //副总经理可以处理20万元

        {

            cout << "总经理" << m_name << "审批采购单：" << name << "，采购金额：" << num << "元" << endl << endl;

        }

        else

        {

            cout << "总经理" << m_name << "无法处理，召开职工大会处理" << endl;

            m_manager->DealWithRequest(name, num);

        }

    }

};

class Congress : public Manager

{

public:

    Congress(Manager *manager, string name) :Manager(manager, name) {}

    void DealWithRequest(string name, int num)  //职工可以处理大于20万元的采购单

    {

        cout << "职工大会" << m_name << "审批采购单：" << name << "，采购金额：" << num << "元" << endl << endl;

    }

};

//主函数

int main()

{

    Manager *congress = new Congress(NULL, ""); //设置上级，职工大会没有上级

    Manager *president = new President(congress, "zongjingli"); //设置上级

    Manager *vicepresident = new VicePresident(president, "fuzongjingli"); //设置上级

    Manager *commonmanager = new CommonManager(vicepresident, "bumenjingli"); //设置上级

    Manager *director = new Director(commonmanager, "zhuren"); //设置上级

    director->DealWithRequest("01", 5000);   //主任张三审批采购单,如若不能处理，逐级往上10001为采购单编号，5000为采购金额

    director->DealWithRequest("02", 40000);

    director->DealWithRequest("03", 80000);

    director->DealWithRequest("04", 190000);

    director->DealWithRequest("05", 800000);

    delete director;

    delete commonmanager;

    delete vicepresident;

    delete president;

    delete congress;

    return 0;

}

3. 注意编程规范。