用vector容器写职工管理系统

职工信息管理系统：

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

可以注册新职工；

允许修改职工信息

允许删除职工信息；

4，按照按照姓名和部门查询职工信息；

可以按照工资多少进行排名，

可以浏览所有职工信息；

.有一个主界面，供选择和调用上述选项。

.用C++中，文件和链表实现

1、头文件control.h

#ifndef CONTROL_H
#define CONTROL_H

#include <iostream>
#include <vector>
#include <string>
#include <functional>
#include <algorithm>
#include <fstream>
using namespace std;

class Stuff
{
public:
string ID;
string name;
string age;
string sex;
string postcodes;
string department;
string salary;
};
class Control
{
public:
void system_init(vector<Stuff> &p);
void jiemian();
void Creat_list_tail(vector<Stuff> &p);
void Del(vector<Stuff> &p);
void Change(vector<Stuff> &p);
void Search(vector<Stuff> &p);
void Display(vector<Stuff> &p);
void Sort(vector<Stuff> &p);
};

#endif

2、主函数Staff management system.cpp

#include "control.h"

void Control::jiemian()
{
cout<<endl;
cout<<endl;
cout<<"*******************************************"<<endl;
cout<<"*       请选择您需要的操作！              *"<<endl;
cout<<"*       (1)增加职工                       *"<<endl;
cout<<"*       (2)删除职工                       *"<<endl;
cout<<"*       (3)修改职工信息                   *"<<endl;
cout<<"*       (4)查询职工信息                   *"<<endl;
cout<<"*       (5)输出所有职工的数据             *"<<endl;
cout<<"*       (6)按工资排序                     *"<<endl;
cout<<"*       (0)退出                           *"<<endl;
cout<<"*       选择相对的括号里的阿拉伯数字!     *"<<endl;
cout<<"*******************************************";
cout<<endl;
cout<<endl;
}

void Control::Creat_list_tail(vector<Stuff> &vec)
{
Stuff m;
cout<<"请输入职工号:";
cin>>m.ID;
cout<<endl<<"请输入姓名:";
cin>>m.name;
cout<<endl<<"请输入年龄:";
cin>>m.age;
cout<<endl<<"请输入性别:";
cin>>m.sex;
cout<<endl<<"请输入邮编:";
cin>>m.postcodes;
cout<<endl<<"请输入部门:";
cin>>m.department;
cout<<endl<<"请输入工资:";
cin>>m.salary;
vec.push_back(m);
}
void Control::Del(vector<Stuff> &vec)
{
string department;
string name;
int temp = 0;
cout<<"请输入部门:";
cin>>department;
cout<<endl<<"请输入姓名";
cin>>name;
vector<Stuff>::iterator it;
for(it=vec.begin();  it!=vec.end(); ++it)
{
if( ((*it).department == department) && ((*it).name == name))
{
vec.erase(it);
temp = 1;
break;
}
}
if(temp)
{
cout<<"删除职工"<<name<<"信息成功"<<endl;
}
else
{
cout<<"未找到匹配信息"<<endl;
}
}
void Control::Change(vector<Stuff> &vec)
{
string department;
string name;
int temp = 0;
cout<<"请输入部门:"<<endl;
cin>>department;
cout<<"请输入姓名"<<endl;
cin>>name;
vector<Stuff>::iterator it;
for(it=vec.begin();  it!=vec.end(); ++it)
{
if( ((*it).department == department) && ((*it).name==name))
{
cout<<"旧的数据"<<endl;
cout<<"职工号:"<<(*it).ID<<" 姓名:"<<(*it).name<<" 年龄:"<<(*it).age<<" 性别:"<<(*it).sex<<" 邮编:"<<(*it).postcodes<<" 部门:"<<(*it).department<<" 工资:"<<(*it).salary<<endl;
cout<<"请输入新数据..."<<endl;
cout<<"请输入职工号:";
cin>>(*it).ID;
cout<<endl<<"请输入姓名:";
cin>>(*it).name;
cout<<endl<<"请输入年龄:";
cin>>(*it).age;
cout<<endl<<"请输入性别:";
cin>>(*it).sex;
cout<<endl<<"请输入邮编:";
cin>>(*it).postcodes;
cout<<endl<<"请输入部门:";
cin>>(*it).department;
temp = 1;
break;
}
}
if(temp)
{
cout<<"修改职工"<<name<<"信息成功"<<endl;
}
else
{
cout<<"未找到匹配信息"<<endl;
}
}
void Control::Search(vector<Stuff> &vec)
{
string department;
string name;
int temp = 0;
cout<<"请输入部门:"<<endl;
cin>>department;
cout<<"请输入姓名"<<endl;
cin>>name;
vector<Stuff>::iterator it;
for(it=vec.begin();  it!=vec.end(); ++it)
{
if( ((*it).department == department)&&((*it).name == name) )
{
cout<<"职工号:"<<(*it).ID<<" 姓名:"<<(*it).name<<" 年龄:"<<(*it).age<<" 性别:"<<(*it).sex<<" 邮编:"<<(*it).postcodes<<" 部门:"<<(*it).department<<" 工资:"<<(*it).salary<<endl;
temp = 1;
}
}
if(!temp)
{
cout<<"未找到匹配信息"<<endl;
}
}
void Control::Display(vector<Stuff> &vec)
{
vector<Stuff>::iterator  it;
for(it=vec.begin(); it!=vec.end(); it++)
{
cout<<"职工号:"<<(*it).ID<<" 姓名:"<<(*it).name<<" 年龄:"<<(*it).age<<" 性别:"<<(*it).sex<<" 邮编:"<<(*it).postcodes<<" 部门:"<<(*it).department<<" 工资:"<<(*it).salary<<endl;
}
}

bool cmp( Stuff &a, Stuff &b )
{
return a.salary > b.salary;
}

void Control::Sort(vector<Stuff> &vec)
{
sort(vec.begin(), vec.end(), cmp);
Display(vec);
}

void Control::system_init(vector<Stuff> &vec)
{
fstream infile("stud.txt",ios::in);
if(!infile)
{
cerr<<"open error!"<<endl;
abort( );
}

Stuff temp;
Control t;
while(1)
{
memset(&temp, 0, sizeof(temp));
if(infile.read((char *)&temp,sizeof(Stuff)))
{
cout<<"职工号:"<<(temp).ID<<" 姓名:"<<(temp).name<<" 年龄:"<<(temp).age<<" 性别:"<<(temp).sex<<" 邮编:"<<(temp).postcodes<<" 部门:"<<(temp).department<<" 工资:"<<(temp).salary<<endl;
vec.push_back(temp);
}
else
{
infile.close( );
cout<<"载入本地信息成功"<<endl;
break;
}
}
}

int main()
{
char flag;
vector<Stuff> vec;
Control con;

con.system_init(vec);

do
{
con.jiemian(); //显示界面
cin>>flag;
cout<<endl;
switch(flag)
{
case '1':
con.Creat_list_tail(vec);
break;
case '2':
con.Del(vec);
break;
case '3':
con.Change(vec);
break;
case '4':
con.Search(vec);
break;
case '5':
con.Display(vec);
break;
case '6':
con.Sort(vec);
break;
}
}while(flag!='0');

vector<Stuff>::iterator it;
Stuff temp;
fstream outfile("stud.txt",ios::out);
if(!outfile)
{
cerr<<"open error!"<<endl;
abort( );
}
for(it = vec.begin(); it  != vec.end(); it++)
{
temp.age = it->age;
temp.department = it->department;
temp.ID = it->ID;
temp.name = it->name;
temp.sex = it->sex;
temp.postcodes = it->postcodes;
temp.salary = it->salary;

outfile.write((char *)&temp,sizeof Stuff);
cout<<"职工号:"<<(*it).ID<<" 姓名:"<<(*it).name<<" 年龄:"<<(*it).age<<" 性别:"<<(*it).sex<<" 邮编:"<<(*it).postcodes<<" 部门:"<<(*it).department<<" 工资:"<<(*it).salary<<endl;
}
cout<<"保存信息成功！"<<endl;
outfile.close( );

return 0;
}