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| #include "stdafx.h"
#include "stdio.h"
#include "conio.h"
#include "malloc.h"
#include "string.h"
struct emlp {
char name [25] ;
int hight ;
int grade;
struct emlp *next ;
};
struct emlp *emlph=NULL ;
char fname[]="D:\data_struct.dat";
int f_print () {
struct emlp *a ;
int i,j ;
if (emlph==NULL) printf ("List empty\n");
else {
for (a=emlph , i=1 , j=1; a!=NULL; a=a->next , j++ , i++)
{
printf ("#%-2d %-10s %-4d %-4d\n" , i, a->name , a->grade , a->hight);
if (j==20) {
printf ("Press any key for continue...\n");
getch();
j=1;
}
}
printf ("====== end of list ======\n");
}
return 0 ;
}
int f_add () {
struct emlp *a , *b;
char ss[40];
int i=1;
if (emlph!=NULL)
for (i++,a=emlph; a->next!=NULL ; a=a->next , i++);
printf ("Line #%d. Enter: name grade hight >" , i );
scanf ("%s" , ss);
if (ss[0]=='*') return 2 ;
b=(emlp *)malloc(sizeof(emlp));
strcpy(b->name , ss);
scanf ("%d %d" , &(b->grade), &(b->hight));
b->next=NULL;
if (emlph=NULL) emlph=b;
else a->next=b;
return 0 ;
}
int f_input () {
int cc;
printf ("Enter name =* for end of stream\n");
while (!(cc=f_add()));
return cc ;
}
int f_save () {
FILE *dat;
struct emlp *a;
dat=fopen(fname , "w"); // открытия файла на запись //
for (a=emlph ; a!=NULL ; a=a->next)
fprintf (dat,"%s %d %d\n" , a->name , a->grade , a->hight);
fprintf (dat, "***\n");
fclose(dat);
return 0 ;
}
int f_restore () {
FILE *dat;
char ss[40];
struct emlp *a , *b;
if ((dat=fopen(fname, "r"))=NULL) {
printf ("File not found : %s\n" , fname);
return 1;
}
else {
emlph=NULL;
do {
fscanf (dat , "%s" , ss);
if (ss[0]!='*'); { b=(emlp *)malloc(sizeof(emlp));
if (emlph=NULL) emlph=b;
else a->next=b;
strcpy (b->name , ss);
fscanf (dat , "%d %d\n" , &(b->grade) , &(b->hight));
b->next=NULL;
a=b;
}
} while (ss[0]!='*');
fclose (dat);
}
return 0 ;
}
int f_sort () {
int n ;
struct emlp *a , *b , *c;
if ((emlph==NULL) || (emlph->next==NULL)) return 0 ;
for (n=1 ; n ; ) {
n=0;
for (a=emlph , b=emlph->next; b!=NULL; )
if (strcmp(a->name , b->name) > 0 ) {
a->next=b->next ; b->next=a;
if (a==emlph) emlph=b;
else c->next=b;
c=b; b=a->next;
n=1;
}
else {
c=a ; a=b ; b->next ;
}
}
return 0 ;
}
int get_ln () {
int ln ;
printf ("Enter line number >");
do {
scanf ("%d" , &ln);
if (ln<1) {
printf ("Illegial line number. Try again >");
ln=0;
}
} while (!ln);
return ln;
}
int f_delete () {
int ln;
emlp *a , *b;
if (emlph=NULL) printf ("List empty\n");
else {
ln=get_ln()-1;
if (!ln) {
a=emlph ; emlph=a->next; free(a);
}
else {
for (ln-- , a=emlph ; ln&&(a!=NULL); a=a->next , ln--);
if (a!=NULL)
if ((b=a->next)!=NULL) {
a->next=b->next ; free (b);
}
}
}
return 0 ;
}
int f_change () {
char ss [40];
int ln;
struct emlp *a;
ln=get_ln()-1;
for (a=emlph ; ln && a!=NULL ; ln--, a=a->next);
if (ln) return 0 ;
printf ("Old name = %s New name >", a->name);
gets(ss);
gets(ss);
if (*ss) strcpy(a->name , ss);
printf ("Old grade = %d New grade >" , a->grade);
gets(ss) ;
if (*ss) sscanf (ss , "%d" , &(a->grade));
printf ("Old hight = %d New hight >" , a->hight);
gets (ss);
if (*ss) sscanf (ss , "%d" , &(a->hight));
return 0 ;
}
int _tmain(int argc, _TCHAR* argv[])
{
int opcode ;
for ( ; ; ) {
printf ("1. Print\n");
printf ("2. Add\n");
printf ("3. Input\n");
printf ("4. Delete\n");
printf ("5. Change\n");
printf ("6. Sort\n");
printf ("7.Save\n");
printf ("8. Restore\n");
printf ("0. Quit\n");
printf ("Enter operation code >");
opcode=getche();
putchar ('\n');
switch (opcode)
{
case '1':f_print () ; getch(); break ;
case '2':f_add () ; getch() ; break ; printf ("dobavleno");
case '3':f_input () ; getch () ; break ; printf ("vvedeno");
case '4':f_delete(); getch() ; break ; printf ("ydaleno");
case '5':f_change() ; getch () ; break ; printf ("izmeneno");
case '6':f_sort() ; getch() ; break ; printf ("otsortirovano");
case '7':f_save() ; getch() ; break ; printf ("sohraneno");
case '8':f_restore() ; getch () ; break ; printf ("perestavleno");
printf ("vihod iz programmu") ;
getch();
return 0 ; } }
return 0;
} |
Сообщение от strspy_29
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