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#include
#include
#include
#include
#define ID struct id
struct id
  {
   char name[20];
   int num;
   char price[20];
   char sum[20];
   ID *next;
  }Market;
struct id *head=NULL;
int pc=0;
void save();
int read();
ID *creat()
{
  ID *p1,*p2,*head;
  int pd;
  p1=p2=head=NULL;
  printf("ÇëÊäÈëÊý×Ö(0ΪÖÕÖ¹·û)!\n");
  printf("*********************************************************\n");
  while(1)
  {
   printf("ÇëÊäÈëÉÌÆ·±àºÅ:\n");scanf("%d",&pd);
   if(pd==0) break;
   p1=(ID*)malloc(sizeof(ID));
   p1->num=pd;
   printf("ÇëÊäÈëÉÌÆ·Ãû³Æ:\n");scanf("%s",p1->name);
   printf("ÇëÊäÈëÉÌÆ·µ¥¼Û:\n");scanf("%s",p1->price);
   printf("ÇëÊäÈëÉÌÆ·×ÜÁ¿:\n");scanf("%s",p1->sum);
   if(head==NULL)
   {
     head=p1;
     p2=p1;
   }
   else
   {
     p2->next=p1;
     p2=p1;
   }
   pc++;
  }
  p2->next=NULL;
  return(head);
}
ID *insert(ID *head)
{
  ID *temp,*p1,*p2;
  printf("¿ªÊ¼²åÈë!!!\n");
  temp=(ID *)malloc(sizeof(ID));
  printf("ÇëÊäÈëÉÌÆ·±àºÅ:\n");scanf("%d",&temp->num);
  printf("ÇëÊäÈëÉÌÆ·Ãû³Æ:\n");scanf("%s",temp->name);
  printf("ÇëÊäÈëÉÌÆ·µ¥¼Û:\n");scanf("%s",temp->price);
  printf("ÇëÊäÈëÉÌÆ·×ÜÁ¿:\n");scanf("%s",temp->sum);
  if(head==NULL)
  {
   head=temp;
   temp->next=NULL;
  }
  else
  {
   p1=head;
   while(p1!=NULL)
   {
     p2=p1;
     p1=p1->next;
   }
   p2->next=temp;
   temp->next=p1;
  }
  printf("³É¹¦²åÈë!");
  pc++;
  return(head);
}
ID *delet(ID *head)
{
  ID *p1,*p2;
  int num;
  printf("ÇëÊäÈëҪɾ³ý»õÎïµÄ±àºÅ:");scanf("%d",&num);
  p1=head;
  if(head==NULL)
  {
   printf("ÎÞÀúÊ·¼Í¼\n");
   goto end;

  }
  while(num!=p1->num&&p1!=NULL)
  {
   p2=p1;p1=p1->next;
  }
  if(num==p1->num)
  {
   if(p1==head)
   head=p1->next;
   else
   p2->next=p1->next;
   printf("³É¹¦É¾³ý!!!\n");
   pc--;
  }
  end:return head;
}
ID *search_name(ID *head)
{
  ID *p1,*p2;
  char str[100];
  printf("ÇëÊäÈëÒª²éÕÒ»õÎïµÄ±àºÅ:");scanf("%s",str);
  p1=head;
  while(strcmp(str,p1->name)&&p1!=NULL)
  {
   p2=p1;p1=p1->next;
  }
  if(strcmp(str,p1->name)==0)
  {
   printf("ÉÌÆ·±àºÅ:%d\n",p1->num);
   printf("ÉÌÆ·Ãû³Æ:%s\n",p1->name);
   printf("ÉÌÆ·µ¥¼Û:%s\n",p1->price);
   printf("ÉÌÆ·×ÜÁ¿:%s\n",p1->sum);
  }
  return head;
}
ID *search_num(ID *head)
{
  int num;
  ID *p1,*p2;
  printf("ÇëÊäÈëÒª»õÎïµÄ±àºÅ:");scanf("%d",&num);
  p1=head;
  while(num!=p1->num&&p1!=NULL)
  {
   p2=p1;p1=p1->next;
  }
  if(num==p1->num)
  {
   printf("ÉÌÆ·±àºÅ:%d\n",p1->num);
   printf("ÉÌÆ·Ãû³Æ:%s\n",p1->name);
   printf("ÉÌÆ·µ¥¼Û:%s\n",p1->price);
   printf("ÉÌÆ·×ÜÁ¿:%s\n",p1->sum);
  }
  return head;
}
ID *search(ID *head)
{
   int mode;
   ID *h;
   printf("ÇëÑ¡ÔñËÑË÷·½Ê½:·½·¨1.num  ·½·¨2.name\n");
   scanf("%d",&mode);
   if(mode==1)
   h=search_num(head);
   else if(mode==2)
   h=search_name(head);
   else
   printf("ÊäÈë´íÎó!\n");
   return h;
   }
   void print(ID *head)
   {
    ID *p;
    p=head;
    printf("\t\t\t******************\n");
    printf("½á¹ûÁбíÏÔʾ :\n");
    if(head!=NULL)
    do
    {
     printf("±àºÅ%-10d Ãû³Æ%-10s µ¥¼Û%-10s ×ÜÁ¿%-10s\n",p->num,p->name,p->price,p->sum);
     p=p->next;
    }while(p!=NULL);
   }
void save()//±£´æÊÕÈë
{
       
    FILE *fp;
    if((fp=fopen("d:\\market.din","wb"))==NULL)
        {
                printf("cannot open file\n");
                exit(1);
        }
        fwrite(&head,sizeof(int),1,fp);
        if(fwrite(Market,sizeof(struct  id),4,fp)!=4)
    printf("file write error");
     fclose(fp);   
}
int read()
{
        FILE *fp;
    if((fp=fopen("d:\\market.din","rb"))==NULL)
        {
                return 1;
        }
    fread(&head,sizeof(int),1,fp);
        if(fread(Market,sizeof(struct  id),4,fp)!=4)
        {
                printf("read error");
                exit (1);}
                fclose(fp);
}

   void main()
   {
     ID *head=NULL;
     int choise;
         head=read();
     printf("\t\t*****´óÐͲֿâ¹ÜÀíϵͳ*****\n");
     while(1)
     {
      printf("\t\t   ÉÌÆ·¹ÜÀíϵͳ¹«²â°æ±¾\n");
      printf("|*********************************************************|\n");
      printf("|**|                        1.ÊäÈë                     |**|\n");
      printf("|**|                       2.ÏÔʾ                      |**|\n");
      printf("|**|                       3.ËÑË÷                      |**|\n");
      printf("|**|                       4.²åÈë                      |**|\n");
      printf("|**|                       5.ɾ³ý                      |**|\n");
      printf("|**|                        0.Í˳ö                     |**|\n");
      printf("|*********************************************************|\n");
      printf("ÇëÑ¡Ôñ·þÎñÏîÄ¿(0-6):");
      scanf("%d",&choise);
      switch(choise)
      {
       case 1:head=creat();
       break;
       case 2:print(head);
       break;
       case 3:head=search(head);
       break;
       case 4:head=insert(head);
       break;
       case 5:head=delet(head);
       break;
       case 0:
       exit(0);
       break;
       default:printf("ÊäÈë´íÎó! ÇëÖØÐÂÊäÈë!\n");
      }
     }save ();
    }
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libralibra

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2Â¥2012-09-13 21:51:42
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2Â¥: Originally posted by libralibra at 2012-09-13 21:51:42
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2Â¥: Originally posted by libralibra at 2012-09-13 21:51:42
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4Â¥2012-09-13 22:08:22
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anntoy

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5Â¥2012-09-14 08:27:15
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ÒýÓûØÌû:
5Â¥: Originally posted by anntoy at 2012-09-14 08:27:15
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6Â¥2012-09-14 10:08:50
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anntoy

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while(Market){
    fwrite(Market,sizeof(struct  id),4,fp);
    Market = Market.next;
}
7Â¥2012-09-14 13:30:38
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