#include <stdio.h>
#include <string.h>
#define NAME_LEN 20
#define TEL_LEN 20
#define MAX_PERSON_NUM 100
typedef struct _Person
{
char name[NAME_LEN];
char phone[TEL_LEN];
} Person;
void ShowMenu(void);
void InsertTelInfo(Person *, int *);
void RemoveTelInfo(Person *, int *);
void SearchTelInfo(Person *, int);
void PrintAll(Person *, int);
void LoadData(Person *, int *);
void StoreData(Person *, int);
int main(void)
{
int choice;
Person perArr[MAX_PERSON_NUM];
int perNum=0;
LoadData(perArr, &perNum);
while(1)
{
ShowMenu();
printf("Choose the item : ");
scanf("%d", &choice);
switch(choice)
{
case 1 :
InsertTelInfo(perArr, &perNum);
break;
case 2 :
RemoveTelInfo(perArr, &perNum);
break;
case 3 :
SearchTelInfo(perArr, perNum);
break;
case 4 :
PrintAll(perArr, perNum);
break;
case 5 :
StoreData(perArr, perNum);
return 0;
default :
printf("Illegal selection.. \n");
break;
}
}
return 0;
}
void ShowMenu(void)
{
printf("\n---------Menu--------\n");
printf(" 1. Insert \n");
printf(" 2. Delete \n");
printf(" 3. Search \n");
printf(" 4. Print All\n");
printf(" 5. Exit\n");
}
void InsertTelInfo(Person * parr, int * pnum)
{
char name[NAME_LEN], phone[TEL_LEN];
printf("[ INSERT ] \n");
printf("Input Name : "); scanf("%s", name);
printf("Input Tel Number : "); scanf("%s", phone);
strcpy(parr[*pnum].name, name);
strcpy(parr[*pnum].phone, phone);
(*pnum)++;
printf("--------> Data Inserted......\n");
}
void RemoveTelInfo(Person * parr, int * pnum)
{
int i, j;
char name[NAME_LEN];
printf("[ Remove ] \n");
printf("Input Name for Removing : "); scanf("%s", name);
for(i=0; i < *pnum; i++)
{
if(strcmp(parr[i].name, name)==0)
{
for(j=i+1; j < *pnum; j++)
{
strcpy(parr[j-1].name, parr[j].name);
strcpy(parr[j-1].phone, parr[j].phone);
}
(*pnum)--;
return;
}
}
printf("-------> Data Not Found......\n");
}
void SearchTelInfo(Person * parr, int num)
{
int i;
char name[NAME_LEN];
printf("[ Search ] \n");
printf("Input Name for Searching : "); scanf("%s", name);
for(i=0; i<num; i++)
{
if(strcmp(parr[i].name, name)==0)
{
printf("---> Name: %s / Tel : %s \n",
parr[i].name, parr[i].phone);
return;
}
}
printf("--------> Data Not Found......\n");
}
void PrintAll(Person * parr, int num)
{
int i;
printf("[ Print All Data ] \n");
for(i=0; i<num; i++)
printf("Name : %s / Tel : %s \n", parr[i].name, parr[i].phone);
}
void LoadData(Person * parr, int * pnum)
{
FILE * file = fopen("data.dat", "rt");
if(file==NULL)
{
return;
}
while(1)
{
fscanf(file, "%s %s", parr[*pnum].name, parr[*pnum].phone);
if(feof(file)!=0)
break;
(*pnum)++;
}
}
void StoreData(Person * parr, int num)
{
int i;
FILE * file = fopen("data.dat", "wt");
if(file==NULL)
{
printf("file open error!\n");
return;
}
for(i=0; i<num; i++)
fprintf(file, "%s %s ", parr[i].name, parr[i].phone);
}
