void add() {

void main(void) {     int menu();     void add();     void del();     void search();     clrscr();     while (1)     {         switch (menu())      {       case 1 : add(); continue;       case 2 : del(); continue;     watch repair san jose   case 3 : search(); continue;     watch repair san jose   case 4 : printf("/n    It's wet!!!/n/n"); continue;       case 5 : exit(0);       default: continue;      }     }     printf("/n    Thank you !!!/n/n"); }
int menu() {  char c[10];  int choice;  printf("/n    watch repair san jose 1.Add a new record");  printf("/n    2.Delete a record"); watch repair san jose  printf("/n    3.Search a record");  printf("/n    4.Help");  printf("/n    5.Quit");  printf("/n/n    Please input:");  gets(c);  choice=atoi(c);  return (choice); }
void add() {  clrscr();  if (head==NULL)  {   build=(struct watch repair san jose student *)malloc(sizeof(record));   head=build,current=build;  }  else  {   build=(struct student *)malloc(sizeof(record));   current->next=build;   current=build;  }  printf("->Input name:");  gets(current->st_name);  printf("->Input number:");  gets(current->st_num);  printf("->Input sex:");  current->st_sex=getchar();  current->next=NULL; }
void del() {  char num[20];  struct student *temp,*del;  clrscr();  printf("->Input a student's number who you want to delete it!/n");  printf("->Input a number:");  gets(num);  del=head,temp=head;  while watch repair san jose (1)  {   if (!strcmp(head->st_num,num))   {    head=head->next;    free(del);    printf("->Delete watch repair san jose Success!/n/n");    break;   }   del=del->next;   if (!strcmp(del->st_num,num))   {    if (del->next==NULL) watch repair san jose    {     temp->next=NULL;     free(del);     printf("->Delete Success!/n/n");     break;    }    else    {     temp->next=del->next;     free(del);     printf("->Delete Success!/n/n");     break;    }   }   else   {    if (del->next==NULL)    {     printf("->No student have been deleted, maybe you imputed a wrong number./n/n");     break; watch repair san jose    }   }   temp=del;  } }
void search() {  char num[20];  clrscr();  printf("->Input a student's number who you want to find it!/n"); watch repair san jose  printf("->Input a number:");  gets(num);  build=head;  while (1)  {   if (!strcmp(build->st_num,num))   { watch repair san jose    printf("/n%5s",build->st_name);    printf("/n%5s",build->st_num);    printf("/n%5c",build->st_sex);    break;   }   else   {    if (build->next==NULL)    {     printf("->No student have been found./n/n");     break;    }    build=build->next;   }  } } 
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