哪位大哥能帮我编程啊！！！C++的

答案：# include <iostream>  
# include <fstream> 
# include <string> 
# include <iomanip> 
# include <stdlib.h>
using namespace std;
struct worker_inf
{int month;       //月份
int code;        //工人编号
string name;      //姓名
float get[4];    //基本工资,津贴，房帖，交通补贴
float pay[4];    //房租，储蓄，交通费，会费
float tax;        //个人所得税
float theory_num;   //应发书
float reduce_num;  //应扣数
float practice_num;  //实发数
worker_inf *next;
};
class worker  //定义职工类
{
private:
worker_inf *head;
void print(worker_inf *);    //输出一条指定职工的工资记录，并返回该记录的指针
worker_inf *find(int);      //查找条例条件的记录，并返回该记录的指针
public:
worker(){head=NULL;}
worker_inf *get_head(){return head;}
int listcount();  //统计当前链表的记录总数，并返回一个整数
void additem(int month,int code,string name,float get[4],float pay[4]); //添加一条工资记录表尾
void removeitem(int);   //删除一条指定职工的工资记录
int menu();      //修改某职工工资的菜单
void changemonth();   //修改月份
    void changeitem(int);   //修改职工的工资信息
void list();   //输出当月全体职工的工资信息
void search(int);   //输出指定编号职工的工资信息
float tax_num();    //计算职工个人所得税
float theorynumber();   //计算应发工资
float reducenumber();   //计算应扣工资
float practicenumber();  //计算实发工资
};
int worker::listcount()                //统计当前链表数，并返回一个整数
{
if(!head)return 0;
worker_inf *p=head;
int n=0;
while(p)
{n++;p=p->next;}
return n;
}
void worker::additem(int month,int code,string name,float get[4],float pay[4]) //添加一条工资记录到表尾
{
if(!head)
{
head=new worker_inf;
for(int i=0;i<4;i++)
{
  head->get[i]=get[i];
     head->pay[i]=pay[i];
}
    head->code=code;
head->month=month;
head->name=name;
head->next=NULL;
return;
}
worker_inf *t=head;
while(t  &&  t->code!=code)
  t=t->next;
if(t)
{
  cout<<"操作失败：编号为"<<code<<"的记录已经存在！"<<endl;
        return;
}
worker_inf *p=head;
while(p->next)p=p->next;
worker_inf *p1=new worker_inf;
p1->code=code;
for(int i=0;i<4;i++)
{
  p1->get[i]=get[i];
     p1->pay[i]=pay[i];
}
    p1->code=code;
p1->month=month;
p1->name=name;
p1->next=NULL;
p->next=p1;
return;
}
void worker::removeitem(int code)     //删除一条指定职工的工资记录
{
worker_inf *t=find(code);
if(!t)return;
worker_inf *p=head;//如果要删除的记录位于表头
if(head==t)
{
  head=head->next;
  delete p;
  cout<<"成功删除编号为"<<code<<"的记录！"<<endl<<endl;
  return;
}
while(p->next!=t)p=p->next;
worker_inf *p1=p->next;
p->next=p1->next;
delete p1;
cout<<"成功删除编号为"<<code<<"的记录！"<<endl<<endl;
return;
}
int worker::menu()     //修改某一职工信息的菜单
{
int select=-1;
cout<<"\t\t\t\t\t\t**************修改菜单**************"<<endl<<endl;
cout<<"1.基本工资"<<endl<<endl;
cout<<"2.津贴"<<endl<<endl;
cout<<"3.房帖"<<endl<<endl;
cout<<"4.交通补贴"<<endl<<endl;
cout<<"5.房租"<<endl<<endl;
cout<<"6.储蓄"<<endl<<endl;
cout<<"7.交通费"<<endl<<endl;
cout<<"8.会费"<<endl<<endl;
cout<<"0.退出修改系统"<<endl<<endl;
cout<<"[请选择(输入相应数字)]:";
cin>>select;
if(select<0||select>9)
{
  cout<<"对不起您输入错误！请重新输入【0-9】:"<<endl;
  cin>>select;
}
return select;
}
int menu();
void worker::changeitem(int code)      //修改某职工部分工资信息
{
worker_inf *p=find(code);
if(!p){cout<<"不存在职工编号为"<<code<<"的职工工资信息"<<endl;return;}
int select;
while(1)
{
  float m;
  select=menu();
  if(select==0){system("cls");break;}
  cout<<"请输入修改后的值";
  cin>>m;
  int n;
  if(select<=4){
   n=select-1; 
   p->get[n]=m;}
  else{
   n=select-5;
   p->pay[n]=m;}
  tax_num();
  theorynumber();
  reducenumber();
  practicenumber();
  cout<<"修改成功"<<endl;
}
}
void worker::changemonth()  //修改月份
{
worker_inf *p=head;
while(p)
{
  if(p->month==12)p->month=1;
  else
   p->month++;
  p=p->next;
}
}
void worker::print(worker_inf *p)//输出worker_inf制定的记录
{
cout.precision(0);
    cout<<p->month<<"    ";
cout<<p->code<<"      ";
cout<<p->name<<"\t";
for(int i=0;i<4;i++)
{cout<<setiosflags(ios::fixed)<<p->get[i]<<"\t";}
for(int j=0;j<4;j++)
{cout<<p->pay[j]<<"\t";}
cout<<p->tax<<"\t";
cout<<p->theory_num<<"\t";
cout<<p->reduce_num<<"\t";
cout<<p->practice_num<<endl<<endl;
return;
}
void worker::list()   //列出当前链表中的所有记录
{
if(listcount==0)
{
  cout<<"错误：当前的列表为空！"<<endl;
  return;
}
worker_inf *p=head;
cout<<"共有记录："<<listcount()<<endl;
cout<<"月份\t编号\t姓名\t基本工资\t津贴\t房帖\t交通补贴\t房租\t储蓄\t交通费\t会费\t个人所得税\t应发工资\t应扣工资\t实际工资"<<endl;
while(p)
{
  print(p);
  p=p->next;
}
cout<<endl;
return;
}
void worker::search(int code)      //在当前链表查找指定记录并输出
{
cout<<"searching....."<<endl;
worker_inf *p=find(code);
if(p)
{  
  cout<<"月份\t编号\t姓名\t基本工资\t津贴\t房帖\t交通补贴\t房租\t储蓄\t交通费\t会费\t个人所得税\t应发工资\t应扣工资\t实际工资"<<endl;
  print(p);
}
cout<<endl;
}
worker_inf *worker::find(int code)    //查找条例条件的记录，并返回该指针
{
if(listcount==0)
{
  cout<<"错误：当前列表为空！"<<endl;
  return NULL;
}
worker_inf *p=head;
while(p)
{
  if(p->code==code)break;
  p=p->next;
}
if(!p)
{
  cout<<"错误：找不到该记录！\n";
     return NULL;
}
return p;
}
float worker::theorynumber()      //计算应发数
{
int i;
if(listcount()==0)
{
       cout<<"错误：当前的列表为空！"<<endl;
  return -1;
}
float sum;
worker_inf *p=head;
while(p)
{
  sum=0;
  for(i=0;i<4;i++)
   sum+=p->get[i];
  p->theory_num=sum;
  p=p->next;
}
return 0;
}
float worker::tax_num()   //计算个人所得税
{
if(listcount==0)
{
  cout<<"错误：当前的列表为空！"<<endl;
  return -1;
}
worker_inf *p=head;
while(p)
{
  float s;
  s=p->theory_num;
  if(s<=800)
   p->theory_num=0;
  else if(s<=2000)   p->theory_num=(s-800)*0.05;
  else if(s<=5000)
   p->theory_num=(s-2000)*0.1+60;
  else p->theory_num=(s-5000)*0.2+360;
  p=p->next;
}
return 0;
}
float worker::reducenumber()   //计算应扣数
{
int i;
if(listcount==0)
{
  cout<<"错误：当前的列表为空！"<<endl;
}
float sum;
worker_inf *p=head;
while(p)
{
  sum=0;
  for(i=0;i<4;i++)
   sum+=p->pay[i];
  p->reduce_num=p->tax+sum;
  p=p->next;
}
return 0;
}
float worker::practicenumber()    //计算实发数
{
if(listcount()==0)
{
  cout<<"错误：当前的列表为空！"<<endl;
  return -1;
}
worker_inf *p=head;
while(p)
{
  float a,b;
  a=p-&g
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