A telephone directory implemented in C

A phone number management program, in VC + + 6.0 through.

#include <stdio.h>
#include <string.h>
struct Fileh//************************************* definition structure (file information buffer)
{
Long FC;
}FH;
struct Telsys//********************************* definition structure (file data buffer)
{
Char usename[30];
Char useadd[50];
Long Usetel;
}TEL[200];


void AddNew (); Defining function types
void Del ();
void display ();
void edit ();
void FindName ();
void Findtel ();
void Quit ();
void Qingli ();
void Qingli ()//************************************* information file Cleanup (scavenging of garbage data) √
{
Long i=0;
FILE *f;
if ((F=fopen ("Telefon.dat", "RB")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
while (I&LT;FH.FC)
{
Fseek (f,sizeof (struct Fileh) + (i) *sizeof (struct Telsys), 0);
Fread (&tel[i],sizeof (struct telsys), 1,f);
i++;
}
Fclose (f);

i=0;
if ((F=fopen ("Telefon.dat", "wb+")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
while (I&LT;FH.FC)
{
Fseek (f,0,0);
Fwrite (&fh,sizeof (struct Fileh), 1,f);
Fseek (f,sizeof (struct Fileh) + (i) *sizeof (struct Telsys), 0);
Fwrite (&tel[i],sizeof (struct telsys), 1,f);
i++;
}
Fclose (f);
printf ("\n\n\n\t\t\t\t file cleaned up!") ");
}
void del ()//*************************************** delete function √
{
Long i=0,in=0;
Char ch;
FILE *f;
if ((F=fopen ("Telefon.dat", "rb+")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
if (fh.fc>0)
{
Todo
{
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
Display ();
Todo
{
printf ("Please enter the data to be deleted serial number: \ n");
scanf ("%ld", &in);
if (in<=0)
printf ([note]: Please enter a number greater than 0!) \ n ");
}while (in<=0);
if (IN&LT;=FH.FC)
{
I=in;
while (I&LT;=FH.FC)
{
Fseek (f,sizeof (struct Fileh) + (i) *sizeof (struct Telsys), 0);
Fread (&tel[i],sizeof (struct telsys), 1,f);
strcpy (Tel[i-1].usename,tel[i].usename);
strcpy (Tel[i-1].useadd,tel[i].useadd);
Tel[i-1].usetel=tel[i].usetel;
i++;
}
fh.fc--;
Fseek (f,0,0);
Fwrite (&fh,sizeof (struct Fileh), 1,f);
I=in;
while (I&LT;=FH.FC)
{
Fseek (f,sizeof (struct Fileh) + (i-1) *sizeof (struct Telsys), 0);
Fwrite (&tel[i-1],sizeof (struct telsys), 1,f);
i++;
}
printf ("Delete message complete!") ");
}
Else
{
printf ("No information of this serial number!") (-_-;)");
}
if (fh.fc>0)
{
printf (Do you want to continue modifying?) (y/n): ");
Ch=getch ();
}
Else
{
Ch= ' n ';
printf ("No data to delete!") ");
Getch ();
}
}while (ch== ' y ') | | ch== ' Y ');
}
Else
{
printf ("\n\n\n\n\n\n\t\t\t\t has no information to delete!") ");
Getch ();
}
Fclose (f);
}
void Findtel ()//*********************************** by number lookup function √
{
Long i=0,in=0,pan=0,panyiyang=0,panduan=0;
FILE *f;
if ((F=fopen ("Telefon.dat", "RB")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
if (fh.fc>0)
{
Fseek (f,sizeof (struct Fileh), 0);
Fread (&tel,fh.fc*sizeof (struct telsys), 1,f);
Todo
{
printf ("\n\n\n\n\n\n\t\t\t Please enter the phone number you want to find:");
scanf ("%ld", &in);
if (in<4000000| | in>4999999)
printf ("\t\t\t[Note]: Please enter the number 4000000 to 4999999!" \ n ");
}while (in<4000000| | in>4999999);
while (I&LT;FH.FC)
{
Fseek (f,sizeof (struct Fileh) + (i) *sizeof (struct Telsys), 0);
Fread (&tel[i],sizeof (struct telsys), 1,f);
if (tel[i].usetel==in)
{
panyiyang++;
}
i++;
}
if (panyiyang!=0)
{
System ("CLS");
printf ("╔══╦══════════╦═══════════════╦════╗\n");
printf ("║ serial number ║ Subscriber name ║ subscriber address ║ phone ║\n");
printf ("╚══╩══════════╩═══════════════╩════╝\n");
printf ("┌──┬──────────┬───────────────┬────┐\n");
i=0;
while (I&LT;FH.FC)
{
if (tel[i].usetel==in)
{
panduan++;
printf ("│%-4d│%-20s│%-30s│%-8ld│\n", I+1,tel[i].usename,tel[i].useadd,tel[i].usetel);
if (Panduan!=panyiyang)
printf ("├──┼──────────┼───────────────┼────┤\n");
}
i++;
}
printf ("└──┴──────────┴───────────────┴────┘\n");
}
Else
{
printf ("\n\t\t\t not Found!") \ n ");
}
}
Else
{
printf ("\n\n\n\n\n\n\t\t\t\t has no information to find!") ");
}
Fclose (f);
Getch ();
}
void FindName ()//********************************** lookup function by name
{
Long i=0,pan=0,panyiyang=0,panduan=0;
Char in[30];
FILE *f;
if ((F=fopen ("Telefon.dat", "RB")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
if (fh.fc>0)
{
Fseek (f,sizeof (struct Fileh), 0);
Fread (&tel,fh.fc*sizeof (struct telsys), 1,f);
printf ("\n\n\n\n\n\n\t\t\t Please enter the Subscriber name to find:");
scanf ("%s", &in);
while (I&LT;FH.FC)
{
if (strcmp (tel[i].usename,in) ==0)
{
panyiyang++;
}
i++;
}
if (panyiyang!=0)
{
System ("CLS");
printf ("╔══╦══════════╦═══════════════╦════╗\n");
printf ("║ serial number ║ Subscriber name ║ subscriber address ║ phone ║\n");
printf ("╚══╩══════════╩═══════════════╩════╝\n");
printf ("┌──┬──────────┬───────────────┬────┐\n");
i=0;
while (I&LT;FH.FC)
{
if (strcmp (tel[i].usename,in) ==0)
{
panduan++;
printf ("│%-4d│%-20s│%-30s│%-8ld│\n", I+1,tel[i].usename,tel[i].useadd,tel[i].usetel);
if (Panduan!=panyiyang)
printf ("├──┼──────────┼───────────────┼────┤\n");
}
i++;
}
printf ("└──┴──────────┴───────────────┴────┘\n");
}
Else
{
printf ("\n\t\t\t not Found!") \ n ");
}
}
Else
{
printf ("\n\n\n\n\n\n\t\t\t\t has no information to find!") ");
}
Fclose (f);
Getch ();
}
void edit ()//************************************** Modify function √
{
Long in=0;
Char ch;
FILE *f;
if ((F=fopen ("Telefon.dat", "rb+")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
if (fh.fc>0)
{
Todo
{
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
Display ();
Todo
{
printf ("Please enter the data number to be modified: \ n");
scanf ("%ld", &in);
if (in<=0)
printf ([note]: Please enter a number greater than 0!) \ n ");
}while (in<=0);
if (IN&LT;=FH.FC)
{
printf ("Please enter your name:");
scanf ("%s", &tel[in-1].usename);
printf ("Please enter your address:");
scanf ("%s", &tel[in-1].useadd);
Todo
{
printf ("Please enter your phone number:");
scanf ("%ld", &tel[in-1].usetel);
if (tel[in-1].usetel<4000000| | tel[in-1].usetel>4999999)
printf ([note]: Please enter the number from 4000000 to 4999999! \ n ");
}while (tel[in-1].usetel<4000000| | tel[in-1].usetel>4999999);
Fseek (f,sizeof (struct Fileh) + (in-1) *sizeof (struct Telsys), 0);
Fwrite (&tel[in-1],sizeof (struct telsys), 1,f);
printf ("Modify information complete!") ");
}
Else
{
printf ("No information of this serial number!") (-_-;)");
}
printf (Do you want to continue modifying?) (y/n): ");
Ch=getch ();
}while (ch== ' y ') | | ch== ' Y ');
}
Else
{
printf ("\n\n\n\n\n\n\t\t\t\t has no information to modify!") ");
Getch ();
}
Fclose (f);
}
void display ()//********************************** view function √
{
Long i=0;
FILE *f;
if ((F=fopen ("Telefon.dat", "RB")) ==null)
{
printf ("Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
System ("CLS");
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
if (fh.fc>0)
{
printf ("╔══╦══════════╦═══════════════╦════╗\n");
printf ("║ serial number ║ Subscriber name ║ subscriber address ║ phone ║\n");
printf ("╚══╩══════════╩═══════════════╩════╝\n");
printf ("┌──┬──────────┬───────────────┬────┐\n");
while (I&LT;FH.FC)
{
Fseek (f,sizeof (struct Fileh) + (i) *sizeof (struct Telsys), 0);
Fread (&tel[i],sizeof (struct telsys), 1,f);
printf ("│%-4d│%-20s│%-30s│%-8ld│\n", I+1,tel[i].usename,tel[i].useadd,tel[i].usetel);
if (i!=fh.fc-1)
printf ("├──┼──────────┼───────────────┼────┤\n");
if ((i+1)%10==0)//-------------------------------------------10 number Paging display
{Getch ();}
i++;
}
printf ("└──┴──────────┴───────────────┴────┘\n");
}
Else
{
printf ("\n\n\n\n\n\n\t\t\t\t has no information to show!") ");
}
Fclose (f);
}
void AddNew ()//************************************ new function √
{
Char ch;
FILE *f;

if ((F=fopen ("Telefon.dat", "rb+")) ==null)
{
printf ("\n\n\n\t\t\t\t Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Todo
{
Fseek (f,0,0);
Fread (&fh,sizeof (struct Fileh), 1,f);
if (fh.fc<200)
{
fh.fc++;
printf ("\n\n\n\t\t\t Please enter your name:");
scanf ("%s", &tel[fh.fc-1].usename);
printf ("\t\t\t Please enter your address:");
scanf ("%s", &tel[fh.fc-1].useadd);
Todo
{
printf ("\t\t\t Please enter your phone number:");
scanf ("%ld", &tel[fh.fc-1].usetel);
if (tel[fh.fc-1].usetel<4000000| | tel[0].usetel>4999999)
printf ("\t\t\t[Note]: Please enter the number 4000000 to 4999999!" \ n ");
}while (tel[fh.fc-1].usetel<4000000| | tel[0].usetel>4999999);
Fseek (f,0,0);
Fwrite (&fh,sizeof (struct Fileh), 1,f);
Fseek (f,sizeof (struct Fileh) + (fh.fc-1) *sizeof (struct Telsys), 0);
Fwrite (&tel[fh.fc-1],sizeof (struct telsys), 1,f);
printf ("\t\t\t Added information complete!") Do you want to continue filling? (y/n): ");
Ch=getch ();
}
Else
{
printf ("\t\t\t over the limit.") It can't be stored anymore! ");
Ch= ' n ';
}
}while (ch== ' y ') | | ch== ' Y ');
Fclose (f);
}
void Quit ()//************************************ Exit function
{
Qingli ();
printf ("\n\t\t\t Welcome to use this system!") \ n ');
printf ("\t\t\t Author: Jingi \ n");
printf ("\t\t\te-mail:jrg9522@126.com\n");
printf ("\t\t\tqq:70939594\n");
printf ("\t\t\t software nature: free software \ n");
printf ("\t\t\t modification Note: \ n");
printf ("\t\t\t\t this time to beautify the interface; \ n");
printf ("\t\t\t\t but user input error bug has not changed; \ n");
printf ("\t\t\t\t in the Chinese character input method input numbers and \n\t\t\t\t input in the way the number entered in fact \n\t\t\t\t different, the bug has not changed." ; \n\t\t\thelp me! ");
Getch ();
}
void Main ()//************************************ main function
{
Char ch;
FILE *f;
if ((F=fopen ("Telefon.dat", "AB")) ==null)
{
printf ("\n\n\n\t\t\t\t Open file failed!") The system is about to exit. \ n ");
Getch ();
Exit (0);
}
Fclose (f);
Todo
{
System ("CLS");
printf ("\n\t\t\t╔═══════════════╗\n");
printf ("\t\t\t║ phone number storage System v1.3║\n");
printf ("\t\t\t╚═══════════════╝\n");
printf ("\t\t\t┌───────────────┐\n");
printf ("\t\t\t│1. Add new phone information │\n");
printf ("\t\t\t├───────────────┤\n");
printf ("\t\t\t│2. Modify information │\n");
printf ("\t\t\t├───────────────┤\n");
printf ("\t\t\t│3. Delete Information │\n");
printf ("\t\t\t├───────────────┤\n");
printf ("\t\t\t│4. Find information by phone number │\n");
printf ("\t\t\t├───────────────┤\n");
printf ("\t\t\t│5. Find information by name │\n");
printf ("\t\t\t├───────────────┤\n");
printf ("\t\t\t│6. View information │\n");
printf ("\t\t\t├───────────────┤\n");
printf ("\t\t\t│7. Exit system │\n");
printf ("\t\t\t└───────────────┘\n");
printf ("\t\t\t, by Operation number:");
Ch=getch ();
Switch (CH)
{
Case ' 1 ':
System ("CLS");
AddNew ();
Break
Case ' 2 ':
System ("CLS");
Edit ();
Break
Case ' 3 ':
System ("CLS");
Del ();
Break
Case ' 4 ':
System ("CLS");
Findtel ();
Break
Case ' 5 ':
System ("CLS");
FindName ();
Break
Case ' 6 ':
Display ();
Getch ();
Break
Case ' 7 ':
System ("CLS");
Quit ();
Break
}
}while (ch!= ' 7 ');
}