用C++实现员工管理系统

职工信息管理系统：
1. 存在一个数据文件，用来存储职工各种信息：职工号，姓名，年龄，性别，邮编，部门，工资
2. 可以注册新职工；
3. 允许修改职工信息
4. 允许删除职工信息；
5，按照按照姓名和部门查询职工信息；
6. 可以按照工资多少进行排名，
7. 可以浏览所有职工信息；
8.有一个主界面，供选择和调用上述选项。

9.用C++中，文件和链表实现

#include <iostream>
#include <string>
#include <fstream>


using namespace std;


class staff
{
private:
string employee_number;//职工号
string name;//姓名
int age;//年龄
string sex;//性别
string zip_code;//邮编
string department;//部门
int wage;//工资
class staff* next;
public:
staff():next(NULL){}
void registration(class staff* head);//注册 尾插
void query_name(class staff* t);//按照姓名查询员工信息
void query_depart(class staff* t);//按照部门查询员工信息
void delete_num(class staff* t);//按工号删除员工信息
void delete_name(class staff* t);//按姓名删除员工信息
void show_all(class staff* head);//展示所有员工信息
void update(class staff* head);
void update_num(class staff* head);//修改工号
void update_name(class staff* head);//修改姓名
void update_age(class staff* head);//修改年龄
void update_sex(class staff* head);//修改性别
void update_zip(class staff* head);//修改邮编
void update_depart(class staff* head);//修改部门
void update_wage(class staff* head);//修改工资
void update_all(class staff* head);//修改全部
void sort_up(class staff* head);//按工资升序排列
void sort_down(class staff* head);//按工资降序排列
int read(class staff* head);
void write(class staff* t);
};


void staff::registration(class staff* head)
{
while(head->next != NULL)
{
head = head->next;
}
staff* newnode = new staff;
head->next = newnode;
newnode->next = NULL;
cout << "请输入员工信息" << endl;
cout << "职工号: " << endl;
cin >> newnode->employee_number;
cout << "职工姓名: " << endl;
cin >> newnode->name;
cout << "职工年龄: " << endl;
cin >> newnode->age;
cout << "职工性别: " << endl;
cin >> newnode->sex;
cout << "职工邮编: " << endl;
cin >> newnode->zip_code;
cout << "职工部门: " << endl;
cin >> newnode->department;
cout << "职工工资: " << endl;
cin >> newnode->wage;


}
void staff::show_all(class staff* head)
{
int i = 0;
while(head->next != NULL)
{
i++;
cout << i << "." << "工号：" ;
cout << head->next->employee_number <<'\t';


cout << "名字：";
cout << head->next->name <<'\t';


cout << "性别：" ;
cout << head->next->sex <<'\t';


cout << "年龄：" ;
cout <<  head->next->age <<'\t';


cout << "邮编：" ;
cout << head->next->zip_code << '\t';


cout << "部门：";
cout << head->next->department << '\t';


cout << "工资：" ;
cout << head->next->wage << endl;
head = head->next;
}
}
void staff::query_name(class staff* t)
{
string n;
cout << "请输入你想查询职工姓名:" << endl;
cin >> n;
int count = 0;
while(t->next != NULL)
{
if(t->next->name == n)
{
cout << "工号：" ;
cout << t->next->employee_number <<'\t';


cout << "名字：";
cout << t->next->name <<'\t';


cout << "性别：" ;
cout << t->next->sex <<'\t';


cout << "年龄：" ;
cout <<  t->next->age <<'\t';


cout << "邮编：" ;
cout << t->next->zip_code << '\t';


cout << "部门：";
cout << t->next->department << '\t';


cout << "工资：" ;
cout << t->next->wage << endl;
count++;
}
t = t->next;
}
if(count == 0)
{
cout << "查无此人！" << endl;
}


}
void staff::query_depart(class staff* t)
{
string n;
cout << "请输入你想查询职工部门:" << endl;
cin >> n;
int count = 0;
while(t->next != NULL)
{
if(t->next->department == n)
{
cout << "工号：" ;
cout << t->next->employee_number <<'\t';


cout << "名字：";
cout << t->next->name <<'\t';


cout << "性别：" ;
cout << t->next->sex <<'\t';


cout << "年龄：" ;
cout <<  t->next->age <<'\t';


cout << "邮编：" ;
cout << t->next->zip_code << '\t';


cout << "部门：";
cout << t->next->department << '\t';


cout << "工资：" ;
cout << t->next->wage << endl;
count++;
}
t = t->next;
}
if(count == 0)
{
cout << "查无此人！" << endl;
}
}
void staff::delete_num(class staff* t)
{
string n;
cout << "请输入你想删除职工号:" << endl;
cin >> n;
int count = 0;
while(t->next != NULL)
{
if(t->next->employee_number == n)
{
staff* temp = t->next;
t->next = t->next->next;
delete temp;
temp = NULL;
cout << "删除成功！" << endl;
count++;
break;
}
t = t->next;
}
if(count == 0)
{
cout << "查无此人！" << endl;
}
}
void staff::delete_name(class staff* t)
{
string n;
cout << "请输入你想删除职工的姓名:" << endl;
cin >> n;
int count = 0;
while(t->next != NULL)
{
if(t->next->name == n)
{
staff* temp = t->next;
t->next = t->next->next;
delete temp;
temp = NULL;
cout << "删除成功！" << endl;
count++;
break;
}
t = t->next;
}
if(count == 0)
{
cout << "查无此人！" << endl;
}
}
void staff::update(class staff* head)
{
int num = 0;
cout << "1.修改员工号" << endl;
cout << "2.修改员工姓名" << endl;
cout << "3.修改员工年龄" << endl;
cout << "4.修改员工性别" << endl;
cout << "5.修改员工邮编" << endl;
cout << "6.修改员工部门" << endl;
cout << "7.修改员工工资" << endl;
cout << "8.修改全部" << endl;
cin >> num;
switch(num)
{
case 1:
update_num(head);
break;
case 2:
update_name(head);
break;
case 3:
update_age(head);
break;
case 4:
update_sex(head);
break;
case 5:
update_zip(head);
break;
case 6:
update_depart(head);
break;
case 7:
update_wage(head);
break;
case 8:
update_all(head);
break;
default:
cout << "请重新输入正确的指令！" << endl;


}
}
void staff::update_num(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout<< "输入新工号："<< endl;
string temp2;
cin>>temp2;
head->next->employee_number = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_name(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout << "输入新名字："<< endl;
string temp2;
cin >> temp2;
head->next->name = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_age(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout << "输入新年龄："<< endl;
int temp2;
cin >> temp2;
head->next->age = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_sex(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout << "输入新性别："<< endl;
string temp2;
cin >> temp2;
head->next->sex = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_zip(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout << "输入新邮编："<< endl;
string temp2;
cin >> temp2;
head->next->zip_code = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_depart(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout << "输入新部门："<< endl;
string temp2;
cin >> temp2;
head->next->department = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_wage(class staff* head)
{
cout << "输入要修改对象的工号："<< endl;
int count = 0;
string temp;
cin >> temp;
while(head->next != NULL)
{
if(temp == head->next->employee_number)
{
count = 1;
cout << "输入新工资："<< endl;
int temp2;
cin >> temp2;
head->next->wage = temp2;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::update_all(class staff* head)
{
cout<<"输入要修改对象的工号："<<flush;
int count = 0;
string tmp;
cin >> tmp;
while(head->next != NULL)
{
if(tmp == head->next->employee_number)
{
count = 1;
cout << "输入新工号："<< endl;
string temp;
int tmp;
cin >> temp;
head->next->employee_number = temp;


cout<< "输入新名字："<< endl;
cin >> temp;
head->next->name = temp;


cout<< "输入新性别："<< endl;
cin >> temp;
head->next->sex = temp;


cout<< "输入新年龄："<< endl;
cin >> tmp;
head->next->age = tmp;


cout<< "输入新邮编："<< endl;
cin >> temp;
head->next->zip_code = temp;


cout<< "输入新部门："<< endl;
cin >> temp;
head->next->department = temp;


cout<< "输入新工资："<< endl;
cin >> tmp;
head->next->wage = tmp;
cout << "修改成功" << endl;
break;
}
head = head->next;
}
if(count == 0)
{
cout << "查无此人" << endl;
}
}
void staff::sort_up(class staff* head)
{
while(head->next != NULL)
{
class staff* temp = head;
while(temp->next != NULL)
{
if(head->next->wage > temp->next->wage)
{
int a;
string b;
a = head->next->wage;
head->next->wage = temp->next->wage;
temp->next->wage = a;
b = head->next->employee_number;
head->next->employee_number = temp->next->employee_number;
temp->next->employee_number = b;
b = head->next->name;
head->next->name = temp->next->name;
temp->next->name = b;
b = head->next->sex;
head->next->sex = temp->next->sex;
temp->next->sex = b;
a = head->next->age;
head->next->age = temp->next->age;
temp->next->age = a;
b = head->next->zip_code;
head->next->zip_code = temp->next->zip_code;
temp->next->zip_code = b;
b = head->next->department;
head->next->department = temp->next->department;
temp->next->department = b;
}
temp = temp->next;
}
head = head->next;
}
}
void staff::sort_down(class staff* head)
{
while(head->next != NULL)
{
class staff* temp = head;
while(temp->next != NULL)
{
if(head->next->wage < temp->next->wage)
{
int a;
string b;
a = head->next->wage;
head->next->wage = temp->next->wage;
temp->next->wage = a;
b = head->next->employee_number;
head->next->employee_number = temp->next->employee_number;
temp->next->employee_number = b;
b = head->next->name;
head->next->name = temp->next->name;
temp->next->name = b;
b = head->next->sex;
head->next->sex = temp->next->sex;
temp->next->sex = b;
a = head->next->age;
head->next->age = temp->next->age;
temp->next->age = a;
b = head->next->zip_code;
head->next->zip_code = temp->next->zip_code;
temp->next->zip_code = b;
b = head->next->department;
head->next->department = temp->next->department;
temp->next->department = b;
}
temp = temp->next;
}
head = head->next;
}
}
int staff::read(class staff* head)
{
ofstream infile1;
infile1.open("职工系统.txt",ios::app);
if(!infile1)
{
return 0;
}
else
{
infile1.close();
ifstream infile;
infile.open("职工系统.txt",ios::in);
while(!infile.eof())
{
staff* newnode = new staff;
infile >> newnode->employee_number;
if(newnode->employee_number.length() == 0)
{
delete newnode;
break;
}
infile >> newnode->name;
infile >> newnode->sex;
infile >> newnode->age;
infile >> newnode->zip_code;
infile >> newnode->department;
infile >> newnode->wage;
head->next = newnode;
head = head->next;
}
infile.close();
}
return 0;
}
void staff::write(class staff* t)
{
ofstream outfile;
outfile.open("职工系统.txt",ios::out);
while(t->next != NULL)
{
outfile << t->next->employee_number <<'\t';
outfile << t->next->name << '\t';
outfile << t->next->sex << '\t';
outfile << t->next->age << '\t';
outfile << t->next->zip_code << '\t';
outfile << t->next->department << '\t';
outfile << t->next->wage << endl;
t = t->next;
}
outfile.close();
}
int main()
{
staff* head = new staff;
head->read(head);
string temp;
cout << "欢迎来到Coder职工系统!" << endl;
while(1)
{
cout << "------------------------------------" << endl;
head->show_all(head);
cout << "------------------------------------" << endl;
cout << endl;
cout << "1.注册员工信息" << endl;
cout << "2.按照姓名查询员工信息" << endl;
cout << "3.按照部门查询员工信息" << endl;
cout << "4.按工号删除员工信息" << endl;
cout << "5.按姓名删除员工信息" << endl;
cout << "6.按工资升序排列" << endl;
cout << "7.按工资降序排列" << endl;
cout << "8.修改员工信息" << endl;
cout << "0.退出" << endl;
cout << endl;
cout << "请输入你想选择的功能：" << endl;
int number;
cin >> number;
switch(number)
{
case 1:
{
head->registration(head);
break;
}
case 2:
{
head->query_name(head);
break;
}
case 3:
{
head->query_depart(head);
break;
}
case 4 :
{
head->delete_num(head);
break;
}
case 5:
{
head->delete_name(head);
break;
}
case 6:
{
head->sort_up(head);
break;
}
case 7:
{
head->sort_down(head);
break;
}
case 8:
{
head->update(head);
break;
}
case 0:
{
head->write(head);
return 0;
}
default: cout << "请重新输入正确的操作指令" << endl;


}
}
}