销售公司人员管理.doc

C++大作业报告

班级：031013
学号：
姓名：

销售公司员工管理
一．题目：
设计一个虚基类Staff（员工），包含编号、姓名和年龄保护数据成员以及相关的成员函数；由Staff派生出销售员类Salesman，包含销售额保护数据成员以及相关的成员函数；再由Staff派生出经理类Manager；然后由Salesman和Manager类派生出销售经理类SalesManager。
设计一个利用文件处理方式实现对公司人员（包括销售员、经理和销售经理）进行管理，具有增加数据、更新数据、查询数据、删除数据以及重组文件的功能。（删除数据在记录中做删除标志，重组文件指在物理上删除有删除标志的记录。）另外要求分别统计这三类员工的人数以及所有员工的总数。
二． 分析，流程及编程思想：
首先定义一个虚基类Staff类，然后通过虚拟继承生成Salesman类和Manager类，最后由Salesman和Manager派生出销售经理类SalesManager。这四个类中定义InputFromFile(istream &in)这一输入函数，另外每个类还定义输入信息和输出信息的成员函数,之后定义StaffChart、SalesmanChart、ManagerChart和SalesManagerChart四个类来，为实现增加、更新、查询、删除以及特定类别人员显示，特定类别人员数目显示的功能定义addItem、modifyItem、find、removeItem以及display、findnumber函数。最后在主函数定义Staff_Chart、Salesman_Chart、Manager_Chart和SalesManager_Chart四个对象，通过循环执行并用switch函数选择功能，然后调用相关的函数来实现各种功能。
三． 实验代码：
#include"iostream"
#include"fstream"
using namespace std;
class Staff
{
protected:
char num[10];
char name[10];
int age;
public:
Staff * Next;
void set_staff()
{
cout<<"Please enter a number:";cin>>num;
cout<<"Please input the name:";cin>>name;
cout<<"Please input the age:";cin>>age;
}
void InputFromFile(istream &in)
{
in>>num>>name>>age;
}
void show()
{
cout<<"number:"<<num<<endl;
cout<<"name:"<<name<<endl;
cout<<"age："<<age<<endl;
}
char *get_num()
{
return num;
}
char *get_name()
{
return name;
}
int get_age()
{
return age;
}
};

class Salesman:virtual public Staff
{
protected:
int sales;
public:
Salesman * Next;
void set_salesman()
{
cout<<"Please enter a number：";cin>>num;
cout<<"Please input the name：";cin>>name;
cout<<"Please input the age：";cin>>age;
cout<<"Please enter the sales：";cin>>sales;
}
void InputFromFile(istream &in)
{
in>>num>>name>>age>>sales;
}
void show_salesman()
{
cout<<"number："<<num<<endl;
cout<<"name："<<name<<endl;
cout<<"age："<<age<<endl;
cout<<"sales："<<sales<<endl;
}
int get_sales()
{
return sales;
}

};

class Manager:virtual public Staff
{
protected:
char job[10];
char dept[10];
public:
Manager * Next;
void set_manager()
{
cout<<"Please enter a number：";cin>>num;
cout<<"Please input the name：";cin>>name;
cout<<"Please input the age：";cin>>age;
cout<<"Please input position：";cin>>job;
cout<<"Please enter the Department：";cin>>dept;
}
void InputFromFile(istream &in)
{
in>>num>>name>>age>>job>>dept;
}
void show_manager()
{
cout<<"number："<<num<<endl;
cout<<"name："<<name<<endl;
cout<<"age："<<age<<endl;
cout<<"position："<<job<<endl;
cout<<"department："<<dept<<endl;
}
char *get_job()
{
return job;
}
char *get_dept()
{
return dept;
}
};

class SalesManager:public Salesman,public Manager
{
public:
SalesManager * Next;
void set_salesmanager()
{
cout<<"Please enter a number：";cin>>num;
cout<<"Please input the name：";cin>>name;
cout<<"Please input the age：";cin>>age;
cout<<"Please enter the sales：";cin>>sales;
cout<<"Please input position：";cin>>job;
cout<<"Please enter the Department：";cin>>dept;
}
void InputFromFile(istream &in)
{
in>>num>>name>>age>>sales>>job>>dept;
}
void show_salesmanager()
{
cout<<"number："<<num<<endl;
cout<<"name："<<name<<endl;
cout<<"age："<<age<<endl;
cout<<"sales："<<sales<<endl;
cout<<"position："<<job<<endl;
cout<<"department："<<dept<<endl;
}
};

class StaffChart
{
public:
StaffChart();
~StaffChart();
void find();
void save();
void modifyItem();
void removeItem();
int findnumber();
void display()
{
Staff *p=Head->Next;
for(p;p!=End;p=p->Next)
{
p->show();
cout<<endl;
}
}
void addItem()
{
End->set_staff();
End->Next=new Staff;
End=End->Next;
save();
}
private:
Staff * Head,* End;
ifstream in;
ofstream out;
Staff * findItem(char * num)
{
for(Staff * p=Head;p->Next!=End;p=p->Next)
if(!strcmp(p->Next->get_num() ,num))
return p;
return NULL;
}
};

StaffChart::StaffChart()
{
Head=new Staff;
Head->Next=new Staff;
End=Head->Next;
in.open("StaffChart.txt");
while(!in.eof())
{
End->InputFromFile(in);
if(End->get_num()[0]=='\0')
break;
End->Next=new Staff;
End=End->Next;
}
in.close();
}

StaffChart::~StaffChart()
{
for(Staff * temp;Head->Next!=End;)
{
temp=Head->Next;
Head->Next=Head->Next->Next;
delete temp;
}
delete Head,End;
}

void StaffChart::find()
{
char num[10];
Staff * p=NULL;
cout<<"Please input the search for employee number：";cin>>num;
if(p=findItem(num))
p->Next->show();
else
{
cout<<"Not found!!"<<endl<<endl;
}
}

void StaffChart::modifyItem()
{
char num[10];
Staff * p=NULL;
cout<<"Please input to modify the employee number：";cin>>num;
if(p=findItem(num))
{
p->Next->show();
cout<<"Please input the new content："<<endl;
p->Next->set_staff();
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void StaffChart::removeItem()
{
char num[10];
Staff *p=NULL,*temp=NULL;
cout<<"Please delete employee number:";cin>>num;
if(p=findItem(num))
{
temp=p->Next;
p->Next=p->Next->Next;
delete temp;
cout<<"Deleted successfully!!"<<endl<<endl;
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void StaffChart::save()
{
out.open("StaffChart.txt");
for(Staff * p=Head->Next;p!=End;p=p->Next)
out<<p->get_num()<<" "<<p->get_name()<<" "<<p->get_age()<<endl;
out.close();
}

int StaffChart::findnumber()
{
int n=0;
Staff *p=Head->Next;
while(p!=NULL)
{ n++;
p=p->Next;
}
cout<<"Number of staff:"<<n-1<<endl;
return n-1;
}

class SalesmanChart
{
public:
SalesmanChart();
~SalesmanChart();
void find();
void save();
void modifyItem();
void removeItem();
int findnumber();
void display()
{
for(Salesman *p=Head->Next;p!=End;p=p->Next)
p->show_salesman();

}
void addItem()
{
End->set_salesman();
End->Next=new Salesman;
End=End->Next;
save();
}
private:
Salesman * Head,* End;
ifstream in;
ofstream out;
Salesman * findItem(char * num)
{
for(Salesman * p=Head;p->Next!=End;p=p->Next)
if(!strcmp(p->Next->get_num() ,num))
return p;
return NULL;
}
};

SalesmanChart::SalesmanChart()
{
Head=new Salesman;
Head->Next=new Salesman;
End=Head->Next;
in.open("SalesmanChart.txt");
while(!in.eof())
{
End->InputFromFile(in);
if(End->get_num()[0]=='\0')
break;
End->Next=new Salesman;
End=End->Next;
}
in.close();
}

SalesmanChart::~SalesmanChart()
{
for(Salesman * temp;Head->Next!=End;)
{
temp=Head->Next;
Head->Next=Head->Next->Next;
delete temp;
}
delete Head,End;
}

void SalesmanChart::find()
{
char num[10];
Salesman * p=NULL;
cout<<"Please input the search sales numbers：";cin>>num;
if(p=findItem(num))
p->Next->show_salesman();
else
cout<<"Not found!!"<<endl<<endl;
}

void SalesmanChart::modifyItem()
{
char num[10];
Salesman * p=NULL;
cout<<"Please input to modify the sales numbers：";cin>>num;
if(p=findItem(num))
{
p->Next->show_salesman();
cout<<"Please input the new content："<<endl;
p->Next->set_salesman();
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void SalesmanChart::removeItem()
{
char num[10];
Salesman *p=NULL,*temp=NULL;
cout<<"Please delete sales numbers：";cin>>num;
if(p=findItem(num))
{
temp=p->Next;
p->Next=p->Next->Next;
delete temp;
cout<<"Deleted successfully!!"<<endl<<endl;
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void SalesmanChart::save()
{
out.open("SalesmanChart.txt");
for(Salesman * p=Head->Next;p!=End;p=p->Next)
out<<p->get_num()<<p->get_name()<<p->get_age()<<p->get_sales()<<endl;
out.close();
}

int SalesmanChart::findnumber()
{
int n=0;
Salesman *p=Head->Next;
while(p!=NULL)
{ n++;
p=p->Next;
}
cout<<"Sales numbers:"<<n-1<<endl;
return n-1;
}

class ManagerChart
{
public:
ManagerChart();
~ManagerChart();
void find();
void save();
void modifyItem();
void removeItem();
int findnumber();
void display()
{
Manager *p=Head->Next;
for(p;p!=End;p=p->Next)
p->show_manager();
}
void addItem()
{
End->set_manager();
End->Next=new Manager;
End=End->Next;
save();
}
private:
Manager * Head,* End;
ifstream in;
ofstream out;
Manager * findItem(char * num)
{
for(Manager * p=Head;p->Next!=End;p=p->Next)
if(!strcmp(p->Next->get_num() ,num))
return p;
return NULL;
}
};

ManagerChart::ManagerChart()
{
Head=new Manager;
Head->Next=new Manager;
End=Head->Next;
in.open("ManagerChart.txt");
while(!in.eof())
{
End->InputFromFile(in);
if(End->get_num()[0]=='\0')
break;
End->Next=new Manager;
End=End->Next;
}
in.close();
}

ManagerChart::~ManagerChart()
{
for(Manager * temp;Head->Next!=End;)
{
temp=Head->Next;
Head->Next=Head->Next->Next;
delete temp;
}
delete Head,End;
}

void ManagerChart::find()
{
char num[10];
Manager * p=NULL;
cout<<"Please input the search manager ID：";cin>>num;
if(p=findItem(num))
p->Next->show_manager();
else
cout<<"Not found!!"<<endl<<endl;
}

void ManagerChart::modifyItem()
{
char num[10];
Manager * p=NULL;
cout<<"Please input the revision manager ID：";cin>>num;
if(p=findItem(num))
{
p->Next->show_manager();
cout<<"Please input the new content："<<endl;
p->Next->set_manager();
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void ManagerChart::removeItem() //删除条目
{
char num[10];
Manager *p=NULL,*temp=NULL;
cout<<"Please input the deletion manager ID：";cin>>num;
if(p=findItem(num))
{
temp=p->Next;
p->Next=p->Next->Next;
delete temp;
cout<<"Deleted successfully!!"<<endl<<endl;
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void ManagerChart::save() //保存
{
out.open("ManagerChart.txt");
for(Manager * p=Head->Next;p!=End;p=p->Next)
out<<p->get_num()<<p->get_name()<<p->get_age()<<p->get_job()<<p->get_dept()<<endl;
out.close();
}

int ManagerChart::findnumber() //查看人数
{
int n=0;
Manager *p=Head->Next;
while(p!=NULL)
{ n++;
p=p->Next;
}
cout<<"Manager number:"<<n-1<<endl;
return n-1;
}

class SalesManagerChart
{
public:
SalesManagerChart();
~SalesManagerChart();
void find();
void save();
void modifyItem();
void removeItem();
int findnumber();
void display()
{
SalesManager *p=Head->Next;
for(;p!=End;p=p->Next)
p->show_salesmanager();
}
void addItem()
{
End->set_salesmanager();
End->Next=new SalesManager;
End=End->Next;
save();
}
private:
SalesManager * Head,* End;
ifstream in;
ofstream out;
SalesManager * findItem(char * num)
{
for(SalesManager * p=Head;p->Next!=End;p=p->Next)
if(!strcmp(p->Next->get_num() ,num))
return p;
return NULL;
}
};

SalesManagerChart::SalesManagerChart()
{
Head=new SalesManager;
Head->Next=new SalesManager;
End=Head->Next;
in.open("SalesManagerChart.txt");
while(!in.eof())
{
End->InputFromFile(in);
if(End->get_num()[0]=='\0')
break;
End->Next=new SalesManager;
End=End->Next;
}
in.close();
}

SalesManagerChart::~SalesManagerChart()
{
for(SalesManager * temp;Head->Next!=End;)
{
temp=Head->Next;
Head->Next=Head->Next->Next;
delete temp;
}
delete Head,End;
}

void SalesManagerChart::find()
{
char num[10];
SalesManager * p=NULL;
cout<<"Please input the search sales manager ID：";cin>>num;
if(p=findItem(num))
p->Next->show_salesmanager();
else
cout<<"Not found!!"<<endl<<endl;
}

void SalesManagerChart::modifyItem()
{
char num[10];
SalesManager * p=NULL;
cout<<"Please input to modify the number of Sales Manager：";cin>>num;
if(p=findItem(num))
{
p->Next->show_salesmanager();
cout<<"Please input the new content："<<endl;
p->Next->set_salesmanager();
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void SalesManagerChart::removeItem()
{
char num[10];
SalesManager *p=NULL,*temp=NULL;
cout<<"Please delete sales manager ID：";cin>>num;
if(p=findItem(num))
{
temp=p->Next;
p->Next=p->Next->Next;
delete temp;
cout<<"Deleted successfully!!"<<endl<<endl;
}
else
cout<<"Not found!!"<<endl<<endl;
save();
}

void SalesManagerChart::save()
{
out.open("SalesManagerChart.txt");
for(SalesManager * p=Head->Next;p!=End;p=p->Next)
out<<p->get_num()<<p->get_name()<<p->get_age()<<p->get_sales()<<p->get_job()<<p->get_dept()<<endl;
out.close();
}

int SalesManagerChart::findnumber()
{
int n=0;
SalesManager *p=Head->Next;
while(p!=NULL)
{ n++;
p=p->Next;
}
cout<<"Sales Manager for the number:"<<n-1<<endl;
return n-1;
}

int main()
{
int x,y,z;
StaffChart Staff_Chart;
SalesmanChart Salesman_Chart;
ManagerChart Manager_Chart;
SalesManagerChart SalesManager_Chart;
bool quit=false;
while(!quit)
{
cout<<"Select function : \n1.the increase of data \t2. update data \t3.query data\t4.delete data \t5. for specific categories of personnel \t6. show the number of employees \t7. exit"<<endl;
cin>>x;
switch(x)
{
case 1:
cout<<"Selection for increased types: \n1. employee \t2. Sales \t3.Manager \t4.Sales Manager"<<endl;
cin>>y;
switch(y)
{
case 1:Staff_Chart.addItem();break;
case 2:Salesman_Chart.addItem();break;
case 3:Manager_Chart.addItem();break;
case 4:SalesManager_Chart.addItem();break;
default :cou