一个C++编程问题(页 1) - 算法讨论与研究 - ITPUB论坛

2007-12-21 11:00 oytommy

一个C++编程问题

我写了个人员管理系统的简单的程序
但是出现点问题我自己没办法解决
希望大家可以帮我看看
这个程序现在不能实现的是修改功能
不知道怎么改，系统不报错
而且经常数据溢出，帮帮忙
我很急，这个程序写了好几天了到现在没弄明白，下个星期就交作业了
#include<iostream.h>
#include<string.h>
#include<fstream.h>
class employee
{
protected:
char name[20];
int num;
char zhiwei[20];
char bumen[20];
int worktime;
int pay;
public:
   employee()
   {
   }
   employee(char n[20],int no,char zw[20],char bm[20],int wt,int mp)
   {
   strcpy(name,n);
   num=no;
   strcpy(zhiwei,zw);
   strcpy(bumen,bm);
   worktime=wt;
   pay=mp;
   }
friend void main();
};

void main()
{
cout<<"请选择您需要的操作！"<<endl;
cout<<"操作："<<endl;
cout<<"(1)数据录入"<<endl;
cout<<"(2)删除人员"<<endl;
cout<<"(3)修改数据"<<endl;
cout<<"查询："<<endl;
cout<<"(4)按编号查询"<<endl;
cout<<"(5)按姓名查询"<<endl;
cout<<"(6)输出所有人员数据"<<endl;
cout<<"*****************************"<<endl;

char p;char w;
employee *s[300];
ofstream *file[400];
int i=0;
int j=0;
bool flag2=0;
do
{
   cin>>p;
   if(p>='0'&&p<='6')
   flag2=1;
   else
   cout<<"错误！不是内部函数！"<<endl;
}
while(flag2==0);
do{
   switch(p)
   {
   case '1':
   {
            char c;
            char name[20];
            int num;
            char zhiwei[20];
            char bumen[20];
            int worktime;
            int pay;
               do{
                  cout<<"姓名:"<<endl;
                        cin>>name;
                  cout<<"编号:"<<endl;
                        cin>>num;
                  cout<<"职位:"<<endl;
                        cin>>zhiwei;
                  cout<<"部门:"<<endl;
                        cin>>bumen;
                  cout<<"工龄:"<<endl;
                        cin>>worktime;
                  cout<<"年薪:"<<endl;
                        cin>>pay;
               file[j]=new ofstream("e:\\ouyang_file",ios::ate);
               *file[j]<<"姓名"<<name<<"编号"<<num<<"职位"<<zhiwei<<"部门"<<bumen<<"工龄:"<<worktime<<"年薪"<<pay<<endl;
                        j++;
                  s[i]=new employee(name,num,zhiwei,bumen,worktime,pay);
                        i++;
                  cout<<"数据录入成功，继续?(y/n)"<<endl;
                        cin>>c;
                  flag2=0;
                           do
   {
                                 if(c!='y'&&c!='n')
{
                                    cout<<"错误！不是内部函数！"<<endl;
                                          cin>>c;
}
                                 else
                                       flag2=1;
   }while(flag2==0);
   }while(c=='y');
         break;
   }

                  case '4':
   {
                        int no;
                        int j=0;
                        char c;
                        do {
                           int flag1=0;
                           cout<<"您要查询的员工编号是："<<endl;
                                 cin>>no;
                           for(int j=0;j<i;j++)
   {
                           if((no,(*s[j]).num)==0)
   {
                           flag1=1;
                           cout<<"您要查询的员工是:"<<(*s[j]).num<<endl;
                           cout<<(*s[j]).name<<"编号"<<(*s[j]).num<<"职位:"<<(*s[j]).zhiwei<<"部门:"<<(*s[j]).bumen<<"工龄:"<<(*s[j]).worktime<<"年薪:"<<(*s[j]).pay<<endl;
   }
   }
                           if(flag1==0)
                              cout<<"对不起!您要查询的资料不存在!"<<endl;
                              cout<<"您想继续查询吗?(y/n)"<<endl;
                                 cin>>c;
                           if(c!='y'&&c!='n')
   {
                           cout<<"错误！不是内部函数！"<<endl;
                                 cin>>c;
   }
}
                     while(c=='y');
                        break;
   }

            case '5':
   {
               char n[20];
               int j=0;
               char c;
               do
   {
               int flag=0;
                  cout<<"您要查询的员工姓名是:"<<endl;
                     cin>>n;
                  for(int j=0;j<i;j++)
{
               if(strcmp(n,(*s[j]).name)==0)
   {
                  flag=1;
                  cout<<"您要查询的员工是："<<(*s[j]).name<<endl;
                  cout<<(*s[j]).name<<"编号"<<(*s[j]).num<<"职位:"<<(*s[j]).zhiwei<<"部门:"<<(*s[j]).bumen<<"工龄:"<<(*s[j]).worktime<<"年薪:"<<(*s[j]).pay<<endl;
}
}
                  if(flag==0)
                  cout<<"对不起!您要查询的资料不存在!"<<endl;
                  cout<<"您想继续查询吗?(y/n)"<<endl;
                     cin>>c;
                  if(c!='y'&&c!='n')
{
                  cout<<"错误！不是内部函数！"<<endl;
                        cin>>c;
}
   }
                  while(c=='y');
               break;
   }

         case '2':
   {
               char name[20];
               bool flag3=0;
               char c;
               do
   {
                  cout<<"请输入要删除的员工姓名："<<endl;
                     cin>>name;
                  for(int h=0;h<i;h++)
{
                  if(strcmp(name,s[h]->name)==0)
   {
                     flag3=0;
                        i--;
                           do{
                              s[h]=s[h+1];
                                       h++;
   }while(h<=i);
   }
}
                  if(flag3==1)
                  cout<<"删除对象不存在！请查证后输入！";
                  cout<<"继续？(y/n)"<<endl;
                     cin>>c;
                  if(c!='y'&&c!='n')
{
                  cout<<"错误！不是内部函数！"<<endl;
                     cin>>c;
}
   }while(c=='y');
                  break;
   }

            case '3':
   {
               char name[20];
               int not;
               char zhiweit[20];
               char bument[20];
               int payt;
               int worktimet;
               flag2=0;
               char c;
               do
   {
                  cout<<"请输入您要修改的员工姓名："<<endl;
                     cin>>name;
                  for(int j=0;j<i;j++)
   {
                  if(strcmp(name,s[j]->name)==0)
   {
                  flag2=1;
                     cout<<"请输入新的编号："<<endl;
                        cin>>not;
                     cout<<"请输入新的职位："<<endl;
                        cin>>zhiweit;
                     cout<<"请输入新的部门："<<endl;
                        cin>>bument;
                     cout<<"请输入新的工龄:"<<endl;
                        cin>>worktimet;
                     cout<<"请输入新的年薪:"<<endl;
                        cin>>payt;
                     s[j]->num=not;
                     s[j]->zhiwei[20]=zhiweit[20];
                     s[j]->bumen[20]=bument[20];
                     s[j]->worktime=worktimet;
                     s[j]->pay=payt;
                     cout<<"数据修改成功！";
   }
   }
                  if(flag2==0)
   {
                     cout<<"修改对象不存在！请查证后输入！"<<endl;
   }
                  cout<<"想继续修改吗(y/n)"<<endl;
                        cin>>c;
                  if(c!='y'&&c!='n')
{
                     cout<<"错误！不是内部函数！"<<endl;
                        cin>>c;
}
   }while(c=='y');
                        break;
   }

         case '6':
   {
                  cout<<"本系统所有员工数据如下："<<endl;
               if(i==0)
                  cout<<"管理系统中没有录入数据或者数据已经被删除！"<<endl;
               for(int k=0;k<i;k++)
   {
                  cout<<k+1<<" "<<"姓名:"<<" "<<s[k]->name<< "编号:"<<" "<<s[k]->num<<"职位："<<" "<<s[k]->zhiwei <<"部门："<<" "<<s[k]->bumen<<"工龄:"<<s[k]->worktime<<"年薪："<<" "<<(*s[k]).pay <<endl;
   }
               break;
   }
}

  cout<<"您想继续进行其他操作吗?(y/n)"<<endl;
  bool flag4=0;
  do
  {
      cin>>w;
  if(w!='y'&&w!='n')
cout<<"错误！不是内部函数！"<<endl;
  else
flag4=1;
  }
while(flag4==0);
if(w=='y')
   cout<<"请输入操作代码"<<endl;
   cout<<"(1)数据录入"<<endl;
   cout<<"(2)删除人员"<<endl;
   cout<<"(3)修改数据"<<endl;
   cout<<"查询："<<endl;
   cout<<"(4)按编号查询"<<endl;
   cout<<"(5)按姓名查询"<<endl;
   cout<<"(6)输出所有人员数据"<<endl;
   cout<<"*****************************"<<endl;
         cin>>p;
}while(w=='y');
for(int x=0;x<i;x++)
{
delete s[x];
   cout<<"delete all members!"<<endl;
}

}

2008-1-14 12:42 阿华007

把帖子发成这样,很不负责任啊
可以用个附件发出来,我说不定帮你调试下,

2008-5-10 16:30 IE_Robin

请问是怎么解决的？我不太专业，看了以后自己认为是不是因为录入时已经写入文件，要修改时必须先从文件中读出再修改？不知是不是这样？

2008-7-3 15:16 zmjeffwc

#include<iostream.h>
#include<string.h>
#include<fstream.h>
class employee
{
protected:
char name[20];
int num;
char zhiwei[20];
char bumen[20];
int worktime;
int pay;
public:
   employee()
         { }
   employee(char n[20],int no,char zw[20],char bm[20],int wt,int mp)
         {
   strcpy(name,n);
   num=no;
   strcpy(zhiwei,zw);
   strcpy(bumen,bm);
   worktime=wt;
   pay=mp;
         }
friend void main();
};

void main()
{
cout<<"ÇëÑ¡ÔñÄúÐèÒªµÄ²Ù×÷£¡"<<endl;
cout<<"²Ù×÷£º"<<endl;
cout<<"(1)Êý¾ÝÂ¼Èë"<<endl;
cout<<"(2)É¾³ýÈËÔ±"<<endl;
cout<<"(3)ÐÞ¸ÄÊý¾Ý"<<endl;
cout<<"²éÑ¯£º"<<endl;
cout<<"(4)°´±àºÅ²éÑ¯"<<endl;
cout<<"(5)°´ÐÕÃû²éÑ¯"<<endl;
cout<<"(6)Êä³öËùÓÐÈËÔ±Êý¾Ý"<<endl;
cout<<"*****************************"<<endl;

char p;char w;
employee *s[300];
ofstream *file[400];
int i=0;
int j=0;
bool flag2=0;
do
{
   cin>>p;
   if(p>='0'&&p<='6')
   flag2=1;
   else
   cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
}
while(flag2==0);
do{
   switch(p)
         {
   case '1':
               {
            char c;
            char name[20];
            int num;
            char zhiwei[20];
            char bumen[20];
            int worktime;
            int pay;
               do{
                  cout<<"ÐÕÃû:"<<endl;
                        cin>>name;
                  cout<<"±àºÅ:"<<endl;
                        cin>>num;
                  cout<<"Ö°Î»:"<<endl;
                        cin>>zhiwei;
                  cout<<"²¿ÃÅ:"<<endl;
                        cin>>bumen;
                  cout<<"¹¤Áä:"<<endl;
                        cin>>worktime;
                  cout<<"ÄêÐ½:"<<endl;
                        cin>>pay;
               file[j]=new ofstream("e:\ouyang_file",ios::ate);
               *file[j]<<"ÐÕÃû"<<name<<"±àºÅ"<<num<<"Ö°Î»"<<zhiwei<<"²¿ÃÅ"<<bumen<<"¹¤Áä:"<<worktime<<"ÄêÐ½"<<pay<<endl;
                        j++;
                  s[i]=new employee(name,num,zhiwei,bumen,worktime,pay);
                        i++;
                  cout<<"Êý¾ÝÂ¼Èë³É¹¦£¬¼ÌÐø?(y/n)"<<endl;
                        cin>>c;
                  flag2=0;
                           do
                                                         {
                                 if(c!='y'&&c!='n')
                                                                     {
                                    cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
                                          cin>>c;
                                                                     }
                                 else
                                       flag2=1;
                                                         }while(flag2==0);
                              }while(c=='y');
         break;
               }

                  case '4':
                                                {
                        int no;
                        int j=0;
                        char c;
                        do {
                           int flag1=0;
                           cout<<"ÄúÒª²éÑ¯µÄÔ±¹¤±àºÅÊÇ£º"<<endl;
                                 cin>>no;
                           for(int j=0;j<i;j++)
                                                      {
                           if((no,(*s[j]).num)==0)
                                                      {
                           flag1=1;
                           cout<<"ÄúÒª²éÑ¯µÄÔ±¹¤ÊÇ:"<<(*s[j]).num<<endl;
                           cout<<(*s[j]).name<<"±àºÅ"<<(*s[j]).num<<"Ö°Î»:"<<(*s[j]).zhiwei<<"²¿ÃÅ:"<<(*s[j]).bumen<<"¹¤Áä:"<<(*s[j]).worktime<<"ÄêÐ½:"<<(*s[j]).pay<<endl;
                                                      }
                                                      }
                           if(flag1==0)
                              cout<<"¶Ô²»Æð!ÄúÒª²éÑ¯µÄ×ÊÁÏ²»´æÔÚ!"<<endl;
                              cout<<"ÄúÏë¼ÌÐø²éÑ¯Âð?(y/n)"<<endl;
                                 cin>>c;
                           if(c!='y'&&c!='n')
                                                      {
                           cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
                                 cin>>c;
                                                      }
                                                      }
                     while(c=='y');
                        break;
                                                }

            case '5':
                              {
               char n[20];
               int j=0;
               char c;
               do
                                 {
               int flag=0;
                  cout<<"ÄúÒª²éÑ¯µÄÔ±¹¤ÐÕÃûÊÇ:"<<endl;
                     cin>>n;
                  for(int j=0;j<i;j++)
                                    {
               if(strcmp(n,(*s[j]).name)==0)
                                 {
                  flag=1;
                  cout<<"ÄúÒª²éÑ¯µÄÔ±¹¤ÊÇ£º"<<(*s[j]).name<<endl;
                  cout<<(*s[j]).name<<"±àºÅ"<<(*s[j]).num<<"Ö°Î»:"<<(*s[j]).zhiwei<<"²¿ÃÅ:"<<(*s[j]).bumen<<"¹¤Áä:"<<(*s[j]).worktime<<"ÄêÐ½:"<<(*s[j]).pay<<endl;
                                    }
                                    }
                  if(flag==0)
                  cout<<"¶Ô²»Æð!ÄúÒª²éÑ¯µÄ×ÊÁÏ²»´æÔÚ!"<<endl;
                  cout<<"ÄúÏë¼ÌÐø²éÑ¯Âð?(y/n)"<<endl;
                     cin>>c;
                  if(c!='y'&&c!='n')
                                    {
                  cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
                        cin>>c;
                                    }
                                 }
                  while(c=='y');
               break;
                              }

         case '2':
                              {
               char name[20];
               bool flag3=0;
               char c;
               do
                                 {
                  cout<<"ÇëÊäÈëÒªÉ¾³ýµÄÔ±¹¤ÐÕÃû£º"<<endl;
                     cin>>name;
                  for(int h=0;h<i;h++)
                                    {
                  if(strcmp(name,s[h]->name)==0)
                                       {
                     flag3=0;
                        i--;
                           do{
                              s[h]=s[h+1];
                                       h++;
                                                      }while(h<=i);
                                       }
                                    }
                  if(flag3==1)
                  cout<<"É¾³ý¶ÔÏó²»´æÔÚ£¡Çë²éÖ¤ºóÊäÈë£¡";
                  cout<<"¼ÌÐø£¿(y/n)"<<endl;
                     cin>>c;
                  if(c!='y'&&c!='n')
                                    {
                  cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
                     cin>>c;
                                    }
                                 }while(c=='y');
                  break;
                              }

            case '3':
                              {
               char name[20];
               int not;
               char zhiweit[20];
               char bument[20];
               int payt;
               int worktimet;
               flag2=0;
               char c;
               do
                                 {
                  cout<<"ÇëÊäÈëÄúÒªÐÞ¸ÄµÄÔ±¹¤ÐÕÃû£º"<<endl;
                     cin>>name;
                  for(int j=0;j<i;j++)
                                       {
                  if(strcmp(name,s[j]->name)==0)
                                       {
                  flag2=1;
                     cout<<"ÇëÊäÈëÐÂµÄ±àºÅ£º"<<endl;
                        cin>>not;
                     cout<<"ÇëÊäÈëÐÂµÄÖ°Î»£º"<<endl;
                        cin>>zhiweit;
                     cout<<"ÇëÊäÈëÐÂµÄ²¿ÃÅ£º"<<endl;
                        cin>>bument;
                     cout<<"ÇëÊäÈëÐÂµÄ¹¤Áä:"<<endl;
                        cin>>worktimet;
                     cout<<"ÇëÊäÈëÐÂµÄÄêÐ½:"<<endl;
                        cin>>payt;
                     s[j]->num=not;
                     s[j]->zhiwei[20]=zhiweit[20];
                     s[j]->bumen[20]=bument[20];
                     s[j]->worktime=worktimet;
                     s[j]->pay=payt;
                     cout<<"Êý¾ÝÐÞ¸Ä³É¹¦£¡";
                                       }
                                       }
                  if(flag2==0)
                                       {
                     cout<<"ÐÞ¸Ä¶ÔÏó²»´æÔÚ£¡Çë²éÖ¤ºóÊäÈë£¡"<<endl;
                                       }
                  cout<<"Ïë¼ÌÐøÐÞ¸ÄÂð(y/n)"<<endl;
                        cin>>c;
                  if(c!='y'&&c!='n')
                                    {
                     cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
                        cin>>c;
                                    }
                                 }while(c=='y');
                        break;
                              }

         case '6':
                              {
                  cout<<"±¾ÏµÍ³ËùÓÐÔ±¹¤Êý¾ÝÈçÏÂ£º"<<endl;
               if(i==0)
                  cout<<"¹ÜÀíÏµÍ³ÖÐÃ»ÓÐÂ¼ÈëÊý¾Ý»òÕßÊý¾ÝÒÑ¾±»É¾³ý£¡"<<endl;
               for(int k=0;k<i;k++)
                              {
                  cout<<k+1<<" "<<"ÐÕÃû:"<<" "<<s[k]->name<< "±àºÅ:"<<" "<<s[k]->num<<"Ö°Î»£º"<<" "<<s[k]->zhiwei <<"²¿ÃÅ£º"<<" "<<s[k]->bumen<<"¹¤Áä:"<<s[k]->worktime<<"ÄêÐ½£º"<<" "<<(*s[k]).pay <<endl;
                              }
               break;
                              }
}

  cout<<"ÄúÏë¼ÌÐø½øÐÐÆäËû²Ù×÷Âð?(y/n)"<<endl;
  bool flag4=0;
  do
  {
      cin>>w;
  if(w!='y'&&w!='n')
cout<<"´íÎó£¡²»ÊÇÄÚ²¿º¯Êý£¡"<<endl;
  else
flag4=1;
  }
while(flag4==0);
if(w=='y')
   cout<<"ÇëÊäÈë²Ù×÷´úÂë"<<endl;
   cout<<"(1)Êý¾ÝÂ¼Èë"<<endl;
   cout<<"(2)É¾³ýÈËÔ±"<<endl;
   cout<<"(3)ÐÞ¸ÄÊý¾Ý"<<endl;
   cout<<"²éÑ¯£º"<<endl;
   cout<<"(4)°´±àºÅ²éÑ¯"<<endl;
   cout<<"(5)°´ÐÕÃû²éÑ¯"<<endl;
   cout<<"(6)Êä³öËùÓÐÈËÔ±Êý¾Ý"<<endl;
   cout<<"*****************************"<<endl;
         cin>>p;
}while(w=='y');
for(int x=0;x<i;x++)
{
delete s[x];
   cout<<"delete all members!"<<endl;
}

}

2008-7-3 15:19 zmjeffwc

就是将语句s=new employee(name,num,zhiwei,bumen,worktime,pay);
改成s[i]=new employee(name,num,zhiwei,bumen,worktime,pay);

2008-7-3 15:30 zmjeffwc

怎么显示不出来 s[i]=new employee(name,num,zhiwei,bumen,worktime,pay);

2008-7-3 15:32 zmjeffwc

反正是s用数组表示

2008-7-3 16:08 zmjeffwc

我理解错了