c++
设计人员信息管理系统，能够实现人员信息的添加、修改、删除和查询等功能。利用文件实现信息的读写。
#define FILENAME "职工信息.mxy"
#include<iostream>
#include<fstream>
#include<string>
#include<algorithm>
using namespace std;
class Staff
{
public:
virtual void ShowInfo() = 0;
virtual string GetWork() = 0;
int m_id;
string m_tel;
int m_salary;
string m_name;
string m_sex;
int m_type;
};
class Boss :public Staff
{
public:
Boss(int id, string name, string sex, string tel, int type, int salary);
void ShowInfo();
string GetWork();
};
class Manager :public Staff
{
public:
Manager(int id, string name, string sex, string tel, int type, int salary);
void ShowInfo();
string GetWork();
};
class Employee :public Staff
{
public:
Employee(int id, string name, string sex, string tel, int type, int salary);
void ShowInfo();
string GetWork();
};
class StaffManagement
{
public:
StaffManagement();
void Menu();
void Exit();
bool CheckId(int n);
void AddEmployee();
void Save();
bool CheckFile;
int GetFileSize();
void InitFile();
void ShowEmployee();
int GetRank(int n);
void NameSearch(string name);
void DeleteEmployee();
void ModifyEmployee();
void SearchEmployee();
void SortEmployee();
void DestoryedInfo();
int P_n;
Staff**P_arr;
~StaffManagement();
};
enum
{
EXIT,
ADD,
DISPLAY,
DELETE,
MODIFY,
SEARCH,
SAVE,
SORT,
DESTORY
};
Boss::Boss(int id, string name, string sex, string tel, int type, int salary)
{
this->m_id = id;
this->m_name = name;
this->m_type = type;
this->m_sex = sex;
this->m_tel = tel;
this->m_salary = salary;
}
void Boss::ShowInfo()
{
cout << "职工编号：" << this->m_id
<< "\t职工姓名：" << this->m_name
<< "\t职工性别：" << this->m_sex
<< "\t职工电话：" << this->m_tel
<< "\t职工薪资：" << this->m_salary
<< "\t职工岗位：" << this->GetWork()
<< "\t岗位职责：管理公司所有事务" << endl;
}
string Boss::GetWork()
{
return string("老板");
}
Manager::Manager(int id, string name, string sex, string tel, int type, int salary)
{
this->m_id = id;
this->m_name = name;
this->m_type = type;
this->m_sex = sex;
this->m_tel = tel;
this->m_salary = salary;
}
void Manager::ShowInfo()
{
cout << "职工编号：" << this->m_id
<< "\t职工姓名：" << this->m_name
<< "\t职工性别：" << this->m_sex
<< "\t职工电话：" << this->m_tel
<< "\t职工薪资：" << this->m_salary
<< "\t职工岗位：" << this->GetWork()
<< "\t岗位职责：完成老板布置的任务，并下发任务给员工" << endl;
}
string Manager::GetWork()
{
return string("经理");
}
Employee::Employee(int id, string name, string sex, string tel, int type, int salary)
{
this->m_id = id;
this->m_name = name;
this->m_type = type;
this->m_sex = sex;
this->m_tel = tel;
this->m_salary = salary;
}
void Employee::ShowInfo()
{
cout << "职工编号：" << this->m_id
<< "\t职工姓名：" << this->m_name
<< "\t职工性别：" << this->m_sex
<< "\t职工电话：" << this->m_tel
<< "\t职工薪资：" << this->m_salary
<< "\t职工岗位：" << this->GetWork()
<< "\t岗位职责：完成经理布置的任务" << endl;
}
string Employee::GetWork()
{
return string("员工");
}
StaffManagement::StaffManagement()
{
ifstream in;
in.open(FILENAME, ios::in | ios::binary);
if (!in.is_open())
{
this->CheckFile = true;
this->P_arr = NULL;
this->P_n = 0;
in.close();
return;
}
char ret;
in >> ret;
if (in.eof())
{
this->CheckFile = true;
this->P_arr = NULL;
this->P_n = 0;
in.close();
return;
}
this->P_n = this->GetFileSize();
this->P_arr = new Staff*[this->P_n];
this->InitFile();
}
void StaffManagement::Menu()
{
cout << "******************************************************" << endl;
cout << "************* 欢迎使用职工管理系统! ***********" << endl;
cout << "************* 0.退出管理系统 ***********" << endl;
cout << "************* 1.添加职工信息 ***********" << endl;
cout << "************* 2.显示职工信息 ***********" << endl;
cout << "************* 3.删除职工信息 ***********" << endl;
cout << "************* 4.修改职工信息 ***********" << endl;
cout << "************* 5.查找职工信息 ***********" << endl;
cout << "************* 6.保存职工信息 ***********" << endl;
cout << "************* 7.职工排序 ***********" << endl;
cout << "************* 8.清空所有职工信息 ***********" << endl;
cout << "******************************************************" << endl;
}
void StaffManagement::Exit()
{
cout << "欢迎下次使用" << endl;
StaffManagement::Save();
system("pause");
exit(0);
}
bool StaffManagement::CheckId(int n)
{
for (int i = 0; i < this->P_n; i++)
{
if (this->P_arr[i]->m_id == n)
return false;
}
return true;
}
void StaffManagement::AddEmployee()
{
int add_n;
while (true)
{
cout << "请输入添加员工的数量" << endl;
cin >> add_n;
if (add_n > 0)
{
int newsize = this->P_n + add_n;
Staff**newspace = new Staff*[newsize];
if (!this->P_arr)
{
for (int i = 0; i < this->P_n; i++)
newspace[i] = this->P_arr[i];
}
for (int i = 0; i < add_n; i++)
{
int id;
string name;
string sex;
string tel;
int salary;
int choice;
while (true)
{
cout << "请输入第" << i + 1 << "个新职工的编号：" << endl;
cin >> id;
if (!this->CheckId(id))
{
cout << "职工编号重复，请重新输入" << endl;
}
else
break;
}
cout << "请输入第" << i + 1 << "个新职工的姓名：" << endl;
cin >> name;
cout << "请输入第" << i + 1 << "个新职工的性别：" << endl;
cin >> sex;
cout << "请输入第" << i + 1 << "个新职工的电话：" << endl;
cin >> tel;
cout << "请输入第" << i + 1 << "个新职工的薪资：" << endl;
cin >> salary;
cout << "请选择以下职工岗位：" << endl
<< "1.员工" << endl
<< "2.经理" << endl
<< "3.老板" << endl;
cin >> choice;
Staff*staff = NULL;
switch (choice)
{
case 1:
staff = new Employee(id, name,sex,tel,choice,salary);
break;
case 2:
staff = new Manager(id, name, sex, tel,choice, salary);
break;
case 3:
staff = new Boss(id, name, sex, tel, choice, salary);
break;
default:
cout << "输入无效，请从新输入" << endl;
break;
}
newspace[this->P_n + i] = staff;
}
delete[] this->P_arr;
this->P_arr = newspace;
this->P_n = newsize;
this->CheckFile = false;
cout << "成功添加" << add_n << "名新职工" << endl;
this->Save();
system("pause");
system("cls");
this->Menu();
break;
}
else
cout << "输入无效,请求重新输入" << endl;
}
}
void StaffManagement::Save()
{
ofstream out;
out.open(FILENAME, ios::out | ios::binary);
for (int i = 0; i < this->P_n; i++)
{
out << this->P_arr[i]->m_id << " "
<< this->P_arr[i]->m_name << " "
<< this->P_arr[i]->m_sex << " "
<< this->P_arr[i]->m_tel << " "
<< this->P_arr[i]->m_salary << " "
<< this->P_arr[i]->m_type << endl;
}
out.close();
cout << "保存成功" << endl;
}
int StaffManagement::GetFileSize()
{
ifstream in;
in.open(FILENAME, ios::in | ios::binary);
int count = 0, id, type ,salary;
string name, sex, tel;
while (in >> id && in >> name && in >> sex && in >> tel && in && in >> salary&&in>>type)
{
count++;
}
return count;
}
void StaffManagement::InitFile()
{
ifstream in;
in.open(FILENAME, ios::in | ios::binary);
int index = 0, id, type,salary;
string name, sex, tel;
while (in >> id && in >> name && in >> sex && in >> tel && in >> salary && in >> type )
{
Staff*staff = NULL;
switch (type)
{
case 1:
staff = new Employee(id, name, sex, tel, type, salary);
break;
case 2:
staff = new Manager(id, name, sex, tel, type, salary);
break;
case 3:
staff = new Boss(id, name, sex, tel, type, salary);
break;
default:
cout << "初始化错误" << endl;
break;
}
this->P_arr[index] = staff;
index++;
}
}
void StaffManagement::ShowEmployee()
{
for (int i = 0; i < this->P_n; i++)
this->P_arr[i]->ShowInfo();
system("pause");
system("cls");
this->Menu();
}
int StaffManagement::GetRank(int n)
{
int index = -1;
for (int i = 0; i < this->P_n; i++)
{
if (this->P_arr[i]->m_id == n)
{
index = i;
break;
}
}
return index;
}
void StaffManagement::NameSearch(string name)
{
for (int i = 0; i < this->P_n; i++)
{
if (this->P_arr[i]->m_name == name)
this->P_arr[i]->ShowInfo();
}
}
void StaffManagement::DeleteEmployee()
{
if (!this->P_n)
cout << "删除失败，文件不存在或文件内容为空" << endl;
else
{
cout << "请输入职工编号" << endl;
int n;
cin >> n;
int index = this->GetRank(n);
if (index == -1)
cout << "职工信息不存在" << endl;
else
{
for (int i = 0; i < this->P_n - 1; i++)
this->P_arr[i] = this->P_arr[i + 1];
}
this->P_n--;
this->Save();
cout << "删除成功" << endl;
}
}
void StaffManagement::ModifyEmployee()
{
if (!this->P_n)
cout << "修改失败，文件不存在或文件内容为空" << endl;
else
{
cout << "请输入职工编号" << endl;
int n;
cin >> n;
int index = this->GetRank(n);
if (index == -1)
cout << "职工信息不存在" << endl;
else
{
delete this->P_arr[index];
int newid, newtype, newsalary;
string newname, newsex, newtel;
while (true)
{
cout << "请输入新的职工编号" << endl;
cin >> newid;
if (!this->CheckId(newid))
cout << "职工编号重复，请重新输入" << endl;
else
break;
}
cout << "请输入新的职工姓名：" << endl;
cin >> newname;
cout << "请输入新的职工职工性别：" << endl;
cin >> newsex;
cout << "请输入新的职工电话：" << endl;
cin >> newtel;
cout << "请输入新的职工薪资：" << endl;
cin >> newsalary;
cout << "请选择以下职工岗位：" << endl
<< "1.员工" << endl
<< "2.经理" << endl
<< "3.老板" << endl;
cin >> newtype;
Staff*staff = NULL;
switch (newtype)
{
case 1:
staff = new Employee(newid, newname,newsex,newtel, newtype,newsalary);
break;
case 2:
staff = new Manager(newid, newname, newsex, newtel, newtype, newsalary);
break;
case 3:
staff = new Boss(newid, newname, newsex, newtel, newtype, newsalary);
break;
default:
cout << "输入无效，请从新输入" << endl;
break;
}
this->P_arr[index] = staff;
this->Save();
cout << "修改成功" << endl;
}
}
system("pause");
system("cls");
this->Menu();
}
void StaffManagement::SearchEmployee()
{
if (!this->P_n)
cout << "文件不存在或文件为空" << endl;
else
{
while (true)
{
cout << "请选择查找方式：" << endl
<< "1.职工编号" << endl
<< "2.职工姓名" << endl;
int choice;
cin >> choice;
if (choice == 1)
{
cout << "请输入职工编号：" << endl;
int id;
cin >> id;
if (this->GetRank(id) == -1)
cout << "无此职工信息" << endl;
else
{
cout << "查找成功，职工信息如下：" << endl;
this->P_arr[this->GetRank(id)]->ShowInfo();
}
break;
}
else if (choice == 2)
{
cout << "请输入职工姓名" << endl;
string name;
cin >> name;
cout << "查找结果如下：" << endl;
this->NameSearch(name);
break;
}
else
cout << "选择无效,请重新选择" << endl;
}
}
system("pause");
system("cls");
this->Menu();
}
void StaffManagement::SortEmployee()
{
if (!this->P_n)
cout << "文件不存在或文件为空" << endl;
else
{
while (true)
{
cout << "请选择排序方式：" << endl
<< "1.按职工编号升序" << endl
<< "2.按职工编号降序" << endl
<< "3.按职工姓名升序" << endl
<< "4.按职工职工降序" << endl
<< "5.按职工电话升序" << endl
<< "6.按职工电话降序" << endl
<< "7.按职工薪资升序" << endl
<< "8.按职工薪资降序" << endl;
int choice;
cin >> choice;
for (int i = 0; i < this->P_n; i++)
{
int minormax = i;
for (int j = i + 1; j < this->P_n; j++)
{
switch (choice)
{
case 1:
if (this->P_arr[minormax]->m_id > this->P_arr[j]->m_id)
minormax = j;
break;
case 2:
if (this->P_arr[minormax]->m_id < this->P_arr[j]->m_id)
minormax = j;
break;
case 3:
if (this->P_arr[minormax]->m_name.compare(P_arr[j]->m_name) > 0)
minormax = j;
break;
case 4:
if (this->P_arr[minormax]->m_name.compare(P_arr[j]->m_name) < 0)
minormax = j;
break;
case 5:
if (this->P_arr[minormax]->m_tel.compare(P_arr[j]->m_tel)>0)
minormax = j;
case 6:
if (this->P_arr[minormax]->m_tel.compare(P_arr[j]->m_tel)<0)
minormax = j;
break;
case 7:
if (this->P_arr[minormax]->m_salary > this->P_arr[j]->m_salary)
minormax = j;
break;
case 8:
if (this->P_arr[minormax]->m_salary < this->P_arr[j]->m_salary)
minormax = j;
break;
default:
cout << "选择无效，请重新输入" << endl;
choice = 0;
break;
}
}
if (i != minormax)
{
Staff*temp = this->P_arr[i];
this->P_arr[i] = this->P_arr[minormax];
this->P_arr[minormax] = temp;
}
}
if (choice)
{
cout << "排序完成，结果如下>:" << endl;
this->Save();
this->ShowEmployee();
break;
}
}
}
}
void StaffManagement::DestoryedInfo()
{
cout << "确认清除所有信息？" << endl
<< "确认请输入1" << endl
<< "返回请输入其它任意数字" << endl;
int choice;
cin >> choice;
if (choice == 1)
{
ofstream out(FILENAME, ios::trunc);//如果文件存在则删除文件
out.close();
if (this->P_arr)
{
for (int i = 0; i < this->P_n; i++)
{
delete this->P_arr[i];
this->P_arr[i] = NULL;
}
delete[]this->P_arr;
this->P_n = 0;
this->P_arr = NULL;
this->CheckFile = true;
cout << "所有信息已被清除！" << endl;
}
}
else
{
system("cls");
this->Menu();
return;
}
system("pause");
system("cls");
this->Menu();
}
StaffManagement::~StaffManagement(){}
void operate()
{
StaffManagement sm;
sm.Menu();
int choice;
do
{
cout << "请选择：" << endl;
cin >> choice;
switch (choice)
{
case EXIT:
sm.Exit();
break;
case ADD:
sm.AddEmployee();
break;
case DISPLAY:
sm.ShowEmployee();
break;
case DELETE:
sm.DeleteEmployee();
break;
case MODIFY:
sm.ModifyEmployee();
break;
case SEARCH:
sm.SearchEmployee();
break;
case SAVE:
sm.Save();
break;
case SORT:
sm.SortEmployee();
break;
case DESTORY:
sm.DestoryedInfo();
break;
default:
cout << "输入无效，请重新输入" << endl;
break;
}
} while (choice);
}
int main()
{
operate();
return 0;
}
标准的练习作业，网上一大堆现成代码啊