//职工管理系统
#include<iomanip>
#include<iostream.h>
#include<fstream.h>
#include<conio.h>
#include <string.h>

class Employee
{
protected:
    double num;
    char Name[20];
    double Salary;
    Employee *next;
    int Duty;
public:
    Employee(){next=0;}
    virtual ~Employee(){}
    virtual void Input()=0;
    virtual void Input(ifstream& ifs)=0;
    virtual void Output()=0;
    virtual void Output(ofstream& ofs)=0;
    virtual double Incoming()=0;
    friend class Corperate;
};


class Technican:virtual public Employee
{
protected:
    int Hours;
public:
    Technican()
    {
        Salary=150;
        Duty=1;
    }

    void Input()
    {
        cout<<"\n编号:";
        cin>>num;
        cout<<"\n姓名:";
        cin>>Name;
        cout<<"\n上班的钟数：";
        cin>>Hours;
        Salary=Incoming();
    }


   void Input(ifstream &ifs)
   {
       ifs>>num>>Name>>Duty>>Hours>>Salary;
   }

   void Output()
   {
      cout<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<Hours<<"\t"<<Salary<<"\t"<<endl;
   
   }

   void Output(ofstream &ofs)
   {
       ofs<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<Hours<<"\t"<<Salary<<"\t"<<endl;
   
   double Incoming()
   {
       if(Hours>1)
           return Salary+(Hours-1)*150;
       else
           return Salary;
   }
};

class Salesman:virtual public Employee
{
protected:
    int amount;
public:
    Salesman()
    {   
        Duty=2;
        Salary=0;
        amount=0;
    }

    void Input()
    {
        cout<<"\n编号:";
        cin>>num;
        cout<<"\n姓名:";
        cin>>Name;
        cout<<"\n当月销售额：";
        cin>>amount;
        Salary=Incoming();
    }

    void Input(ifstream &ifs)
    {
       ifs>>num>>Name>>Duty>>amount>>Salary;
    }

    void Output()
    {
        cout<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<amount<<"\t"<<Salary<<"\t"<<endl;
    }

    void Output(ofstream &ofs)
    {
       ofs<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<amount<<"\t"<<Salary<<"\t"<<endl;
    }

    double Incoming()
    {
        if(amount>0)
            return Salary+amount*0.07;
        else
            return Salary;
    }

};

class Manager:virtual public Employee
{
public:
    Manager()
    {   
        Duty=3;
        Salary=8500;
    }

    void Input()
    {
       cout<<"\n编号:";
       cin>>num;
       cout<<"\n姓名:";
       cin>>Name;
       Salary=Incoming();
    }

    void Input(ifstream &ifs)
    {
        ifs>>num>>Name>>Duty>>Salary;
    }

    void Output()
    {
        cout<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<Salary<<endl;
    }

    void Output(ofstream &ofs)
    {
        ofs<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<Salary<<"\t"<<endl;
    }
    
    double Incoming()
    {
        return Salary;
    }


};

class Salesmanager:public Salesman,public Manager
{
public:
    Salesmanager()
    {   
        Duty=4;
        Salesman::amount=0;
        Manager::Salary=4000;
    }

    void Input()
    {
       cout<<"\n编号:";
       cin>>num;
       cout<<"\n姓名:";
       cin>>Name;
       cout<<"\n本月销售额:";
       cin>>Salesman::amount;
       Salary=Incoming();
    }

    void Input(ifstream &ifs)
    {
       ifs>>num>>Name>>Duty>>Salesman::amount>>Salary;
     }

    void Output()
    {
        cout<<num<<"\t"<<Name<<"\t"<<"\t"<<Duty<<"\t"<<Salesman::amount<<"\t"<<Salary<<endl;
    }

    void Output(ofstream& ofs)
    {    
        ofs<<num<<"\t"<<Name<<"\t"<<Duty<<"\t"<<Salesman::amount<<"\t"<<Salary<<"\t"<<endl;
    }

    double Incoming()
    {
        return Manager::Salary+Salesman::amount*0.005;
    }

};


class Corperate
{
private:
    Employee *PL;
    void Clear();
    int Corperate::Cfind(int ID,Employee **p1,Employee **p2);
public:
    Corperate();
    ~Corperate();
    void Add();
    void Delete();
    void Modify();
    void Print();
    void Save();
    void Find();
    void Build();
};

Corperate::Corperate()
{
    Employee *p=new Technican;
    PL=p;
    Build();
}

Corperate::~Corperate()//仅保留一个头结点
{
    Employee *p=PL;
    while(p)
    {
        PL=p->next;
        delete p;
        p=PL;
    }
    PL=0;
}

void Corperate::Add()
{   
    char c;
    do
    {
        cout<<"\n*****************增加职工****\n";
        Employee *p=PL;
        while(p->next)p=p->next;
        int ch;
        cout<<"********************************\n";
        cout<<"******请输入你要增加的类别******\n";
        cout<<"********技术人员:****->1********\n";
        cout<<"********销售人员:****->2********\n";
        cout<<"********部门经理:****->3********\n";
        cout<<"********销售经理:****->4********\n";
        cout<<"********************************\n";
        cin>>ch;
        Technican     *pt;
        Salesman      *pa;
        Manager       *pm;
        Salesmanager  *pn;
        switch(ch)
        {
        case 1: pt=new Technican; 
                pt->Input();
                p->next=pt;
                break;
        case 2: pa=new Salesman; 
                pa->Input();
                p->next=pa;
                break;
        case 3: pm=new Manager; 
                pm->Input();
                p->next=pm;
                break;
        case 4: pn=new Salesmanager; 
                pn->Input();
                p->next=pn;
                break;
        default:return;
        }
        cout<<"是否继续增加职工?\n";
        cin>>c;
    }while(c=='y'||c=='Y');
    Save();
}

void Corperate::Clear()
{
    Employee *p=PL->next;
    while(p)
    {
        PL->next=p->next;
        delete p;
        p=PL->next;
    }
}

void Corperate::Find()
{
    double ID;
    Employee *p1;
    Employee *p2;
    cout<<"输入你要查的编号:";
    cin>>ID;
    p1=PL->next;
    p2=PL;
    while(p1)
    {
        if(p1->num==ID)
           break;
        else
        {
           p2=p1;
           p1=p1->next;
        }
    }
    if(!p1)
    {
        cout<<"找不到你要查询的人!!!\n请确认你输入的编号是否有错!!!\n";
        return;
    }
    else
    {
        cout<<"\n**职工信息表****\n";
        cout<<"编号    姓名    身份代码  工作时间/销售额   收入情况 \n ";
        p1->Output();
        getch();
    }
}


int Corperate::Cfind(int ID,Employee **p1,Employee **p2)
{
    *p1=PL->next;
    *p2=PL;
    while(*p1)
    {
        if((*p1)->num==ID)
            break;
        else
        {
           *p2=*p1;
           *p1=(*p1)->next;
        }
    }

    return *p1?1:0;
}

void Corperate::Delete()
{
    cout<<"\n***删除职工****\n";
    int num;
    Employee *p1,*p2;
    cout<<"编号：";
    cin>>num;
    if(!Cfind(num,&p1,&p2))
    {
        cout<<"没有指定的人!!!\n";
    }
    else 
    {
        p2->next=p1->next;
        delete p1;
        cout<<"正确删除!!!\n";
    }
    Save();
    getch();
}


void Corperate::Modify()
{
    cout<<"\n***修改职工***\n";
    int num;
    Employee *p1,*p2;
    cout<<"编号";
    cin>>num;
    if(!Cfind(num,&p1,&p2))
    {
        cout<<"没有指定的人!!!\n";
    }
    else
    {
        p1->Output();//输出原来的职工信息
        p1->Input();//输入新的职工信息
        cout<<"修改完成!!!\n";
    }
    Save();
}


void Corperate::Print()
{
    cout<<"\n*********职工信息表************\n";
    Employee *p=PL->next;
    if(!p)
    {
        cout<<"无职工记录!!!\n";
        return;
    }
    while(p)
    {
        p->Output();
        p=p->next;
    }
    getch();
}

void Corperate::Save()
{
    ofstream f("李伟.txt",ios::out);//打开文件，遍历输出文件
    Employee *p=PL->next;
    while(pe)
    {
        p->Output(f);
        p=p->next;
    }
    f.close();//关闭文件
    cout<<"职工的信息已保存在 李伟.txt.\n";
}

void Corperate::Build()//职工信息
{
    char buf[81];//临时空间
    int Duty;//人员类型
    Employee *p2;//新建结点指针
    long t;//读写位置//清除现有结点（保留头结点）
    Clear();//打开文件
    ifstream f("ms.txt",ios::in);
    Employee *p=PL;//尾结点指针
    while(1)
    {
        t=f.tellg();//读取人员类型
        f>>buf>>buf>>Duty;
        if(f)
        {
            switch(Duty)//根据人员类型创建新节点
            {
            case 1: p2=new Technican; 
                    break;
            case 2: p2=new Salesman; 
                    break;
            case 3: p2=new Manager; 
                    break;
            case 4: p2=new Salesmanager; 
                    break;
            default:
                   f.close();
                   return;
            }
            p->next=p2;
            p=p->next;
            f.seekg(t);
            e->Input(f);
        }
        else
           break;
    }//关闭文件
        f.close();
}

void Menu()
{
    char ch;
    Corperate C;
    do 
    {
        system("cls");
        cout<<"********某企业工资管理********"<<endl;
        cout<<"*******************************\n";
        cout<<"*********输入你的选择**********\n";
        cout<<"*********增加职工：选择1*******\n";
        cout<<"*********删除职工：选择2*******\n";
         cout<<"*********修改职工：选择3*******\n";
         cout<<"*********查询职工：选择4*******\n";
        cout<<"*********查看数据：选择5*******\n";
        cout<<"*********系统退出：选择6*******\n";
        cout<<"*******************************\n";
        cout<<"*********请选择一个操作********\n";
         cin>>ch;
         switch(ch)
        {
            case'1':C.Add();
                    break;
            case'2':C.Delete();
                    break;
             case'3':C.Modify();
                     break;
              case'4':C.Find();
                    break;
            case'5':C.Print();
                    break;
        }
    }while(ch!='6');
}

void main()
{
    Menu();
}