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[½»Á÷] ¡¾ÇóÖú¡¿×Ô¼ºÐ´µÄCÓïÑÔ£¬Í»È»Ïë¿´¿´C++ÊÇʲô£¬ÇóÖúһϡ£»¹ÓÐCÓïÑÔºÍC++ÓÐÊ²Ã´Çø±ð°¡ ÒÑÓÐ21È˲ÎÓë

#include
#include
#include
#include

#define N 3
struct  student
{
char name[10];
char no[10];
char sex;
int  age;
char bnote[100];
};
void print(bool menu)//´òÓ¡»ù±¾ÐÅÏ¢
{
if (!menu)
{
  printf("ѧÉú»ù±¾ÐÅϢ¼Èë ,press 1\n");     
}
else
{
  printf("ѧÉú»ù±¾ÐÅÏ¢ÏÔʾ ,press 2\n");  
  printf("ѧÉú»ù±¾ÐÅÏ¢±£´æ ,press 3\n");  
  printf("ѧÉú»ù±¾ÐÅϢɾ³ý ,press 4\n");
  printf("ѧÉú»ù±¾ÐÅÏ¢ÐÞ¸Ä ,press 5\n");
  printf("ѧÉú»ù±¾ÐÅÏ¢²éѯ ,press 6\n");  
}
  printf("Í˳öѧÉúÐÅϢϵͳ ,press 7\n");
}

bool Check(char pas[6])//ÃÜÂëÑéÖ¤
{
FILE *fp;
char ch;
char a[7]={" "};
int i = 0;
if ((fp=fopen("c:\\1.txt","r"))==NULL)
{
  printf("´ò¿ªÎļþʧ°Ü!\n");
  exit(0);
}
    ch=fgetc(fp);
while (ch!=EOF&&i<6)
{
  a = ch;
        ch=fgetc(fp);
  i++;
}
a[6] = '\0';
if (!strcmp(pas,a))
{
  return true;
}
else
{
  printf("ÃÜÂë´íÎó\n");
  return false;
}
fclose(fp);
}

void GetInfo(struct student *arr,int n)//ѧÉú»ù±¾ÐÅϢ¼Èë
{

for (int i = 0;i {
  printf("ÊäÈëѧÉúµÄ»ù±¾ÐÅÏ¢:name   no    sex  age   bnote\n");
  scanf("%s %s %c %d %s",arr.name,arr.no,&arr.sex,&arr.age,arr.bnote);
}
}
void Display(struct student* arr,int n)//ѧÉú»ù±¾ÐÅÏ¢ÏÔʾ
{
printf("ѧÉúÐÅÏ¢: Name     NO    Sex   age  Note\n");
for (int i = 0;i {
  printf("%15s%15s%15c%15d%15s\n",arr.name,arr.no,arr.sex,arr.age,arr.bnote);
}
}

void Save(struct student* arr,int n)//ѧÉú»ù±¾ÐÅÏ¢±£´æ£¬±£´æÔÚc:\\student.txt
{
FILE * fp;
    fp= fopen("c:\\student.txt","w+");
if (fp == NULL)
{
  printf("Îļþ²»´æÔÚ!\n");
  exit(0);
}

    fwrite(arr,sizeof(struct student)*n,n,fp);
fclose(fp);
}

void Modfiy(struct student* arr,int n)//ѧÉú»ù±¾ÐÅÏ¢ÐÞ¸Ä
{
char number[10];
bool flag=false;
char pass[6];
printf("ÇëÊäÈëÃÜÂë:\n");
scanf("%s",pass);
if (Check(pass))
{
  printf("ÐÞ¸ÄѧÉúÐÅÏ¢:\n");
  printf("ÇëÊäÈëѧºÅ:\n");
  scanf("%s",number);
  for (int i =0;i   {
   if (!strcmp(number,arr.no))
   {
    printf("infor:   name   no   sex  age note\n");
    printf("%12s%12s%12c%12d%12s\n",arr.name,arr.no,
     arr.sex,arr.age,arr.bnote);
    printf("please input information:\n");
    scanf("%s%s%c%d%s",arr.name,arr.no,&arr.sex,&arr.age,arr.bnote);
    Save(arr,n);
    flag = true;
   }
  }
  if (flag == false)
  {
   printf("¸ÃѧÉú²»´æÔÚ!:\n");
  }
}

}

void Delete(struct student* arr,int n)//ѧÉú»ù±¾ÐÅϢɾ³ý
{
char number[10];
bool flag=false;
printf("Delete information:\n");
printf("please input the no:\n");
scanf("%s",number);
for (int i =0;i {
  if (!strcmp(number,arr.no))
  {
   strcpy(arr.name," ");
   strcpy(arr.no," ");
   strcpy(arr.bnote," ");

   arr.sex = ' ';
   arr.age = 0;
   Save(arr,n);
   flag = true;
  }
}
if (flag == true)
{
  printf("¸ÃѧÉú²»´æÔÚ!:\n");
}
}

void Search(struct student* arr,int n)//ѧÉú»ù±¾ÐÅÏ¢²éѯ
{
int temp,i;
bool flag=false;
   printf("---------------ͨ¹ýѧºÅ²éѯ,press 1-------------\n");  
   printf("---------------ͨ¹ýÐÕÃû²éѯ,press 2-----------\n");  
   printf("---------------ͨ¹ýÐÔ±ð²éѯ,press 3------------\n");  
   printf("---------------ͨ¹ýÄêÁä²éѯ,press 4------------\n");  
   printf("---------------Í˳ö,press 5      ------------\n");  
   scanf("%d",&temp);
   switch (temp)
   {
   case 1://°´ÕÕѧºÅ²éѯ
    {
     char num[10];
     printf("ÇëÊäÈëѧºÅ:\n");
     scanf("%s",num);
     for ( i =0;i      {
      if (!strcmp(num,arr.no))
      {
       printf("%12s%12s%12c%12d%12s\n",arr.name,arr.no,
       arr.sex,arr.age,arr.bnote);
       flag = true;
      }
     }
     if (!flag)
     {
            printf("¸ÃѧÉú²»´æÔÚ.\n");
     }
    }
    break;
   case 2://°´ÕÕÃû×Ö²éѯ
    {
     char num[10];
     printf("please input name:\n");
     scanf("%s",num);
     for ( i =0;i      {
      if (!strcmp(num,arr.name))
      {
       printf("%12s%12s%12c%12d%12s",arr.name,arr.no,
        arr.sex,arr.age,arr.bnote);
       flag = true;
      }
     }
     if (!flag)
     {
      printf("¸ÃѧÉú²»´æÔÚ.\n");
     }
    }
    break;
   case 3://°´ÕÕÐÔ±ð²éѯ
    {
     char ch;
     printf("ÇëÊäÈëÐÔ±ð:\n");
     //scanf("%c",&ch);
     ch = getch();
     for ( i =0;i      {
      if (ch == arr.sex)
      {
       printf("%12s%12s%12c%12d%12s\n",arr.name,arr.no,
        arr.sex,arr.age,arr.bnote);
       flag = true;
      }
     }
     if (!flag)
     {
      printf("t¸ÃѧÉú²»´æÔÚ.\n");
     }
    }
    break;
   case 4://°´ÕÕÄêÁä²éѯ
    {
     char num_age;
     printf("ÇëÊäÈëÄêÁä:\n");
     scanf("%d",&num_age);
     for ( i =0;i      {
      if (num_age == arr.age)
      {
       printf("%12s%12s%12c%12d%12s\n",arr.name,arr.no,
        arr.sex,arr.age,arr.bnote);
       flag = true;
      }
     }
     if (!flag)
     {
      printf("¸ÃѧÉú²»´æÔÚ.\n");
     }
    }
    break;
   default:
    break;
   }
}

void main()
{
struct student arr[N];
char ps[6];
bool flag =false;
printf("ÇëÊäÈëÃÜÂë:\n");
    scanf("%s",ps);
    flag = Check(ps);
if (flag)
{
  int select;
  print(false);
  scanf("%d",&select);
while (0
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