C言語で通信録を実現する

通信録を実現する.アドレス帳は1000人の情報を格納するために使用することができ、各人の情報には名前、性別、年齢、電話、住所が含まれている.
提供方法:1.連絡先情報2を追加する.指定連絡先情報3を削除する.指定連絡先情報4を検索する.指定連絡先情報5を変更する.すべての連絡先情報6を表示する.すべての連絡先をクリア

#define _CRT_SECURE_NO_WARNINGS 1
#ifndef __CONTACT_H_
#define __CONTACT_H_
#define NAME_MAX 20
#define SEX_MAX 10
#define TEL_MAX 15
#define ADDR_MAX 20
#define PEO_MAX 1000

#include 
#include 
#include 
typedef struct People
{
    char name[NAME_MAX];
    char sex[SEX_MAX];
    int age;
    char tel[TEL_MAX];
    char addr[ADDR_MAX];
}*peo;
typedef struct Contact
{
    int count;
    struct People people[PEO_MAX];
}*pCon;
void add_peo(pCon pcon);
void del_peo(pCon pcon);
void find_peo(pCon pcon);
void modify_peo(pCon pcon);
void show_peo(pCon pcon);
void clear_peo(pCon pcon);
#endif


int search(pCon pcon, char *name)
{
    int i = 0;
    for (i=0; i < pcon->count; i++)
    {
        if (strcmp(name, pcon->people[i].name) == 0)
            return i;
    }
    return -1;
}
void add_peo(pCon pcon) //     
{
    if (pcon->count == PEO_MAX)
    {
        printf("The contact has fullen.");
        return;
    }
    printf("please input name:  ");
    scanf("%s", (pcon->people[pcon->count]).name);
    printf("please input sex :  ");
    scanf("%s", (pcon->people[pcon->count]).sex);
    printf("please input age:  ");
    scanf("%d", &((pcon->people[pcon->count]).age));
    printf("please input tel:  ");
    scanf("%s", (pcon->people[pcon->count]).tel);
    printf("please input address:  ");
    scanf("%s", (pcon->people[pcon->count]).addr);
    pcon->count++;
}
void del_peo(pCon pcon) //     
{
    int i;
    char name[NAME_MAX];
    printf("please input the people you want to delete:");
    scanf("%s", name);
    i = search(pcon, name);
    if (i == -1)
        printf("The people doesn't exsit.
");
    else if (i == 1000)
        pcon->count--;
    else
    {
        for (i=0; i < pcon->count; i++)
            pcon->people[i] = pcon->people[i + 1];
        pcon->count--;
    }
}
void find_peo(pCon pcon)//     
{
    int i;
    char name[NAME_MAX];
    printf("please input the people you want to find:");
    scanf("%s", name);
    i = search(pcon, name);
    if (i == -1)
        printf("The people doesn't exsit.
");
    else
        printf("%s\t%s\t%d\t%s\t%s
",
        pcon->people[i].name,
        pcon->people[i].sex,
        pcon->people[i].age,
        pcon->people[i].tel,
        pcon->people[i].addr);
}
void modify_peo(pCon pcon)//     
{
    int i;
    char name[NAME_MAX];
    printf("please input the people you want to modify:");
    scanf("%s", name);
    i = search(pcon, name);
    if (i == -1)
        printf("The people doesn't exsit.
");
    else
        printf("please input name:  ");
    scanf("%s", (pcon->people[i]).name);
    printf("please input sex :  ");
    scanf("%s", (pcon->people[i]).sex);
    printf("please input age:  ");
    scanf("%d", &((pcon->people[i]).age));
    printf("please input tel:  ");
    scanf("%s", (pcon->people[i]).tel);
    printf("please input address:  ");
    scanf("%s", (pcon->people[i]).addr);
}
void show_peo(pCon pcon)//     
{
    int i = 0;
    for (; i < pcon->count; i++)
    {
        printf("name    sex     age     tel     addr
");
        printf("%s\t%s\t%d\t%s\t%s
",
            pcon->people[i].name,
            pcon->people[i].sex,
            pcon->people[i].age,
            pcon->people[i].tel,
            pcon->people[i].addr);
    }
}
void clear_peo(pCon pcon)//     
{
    pcon->count = 0;
}



void show_menu()                            
{
    printf("************************
");
    printf("*  1:add     2:del     *
");
    printf("*  3:find    4:modify  *
");
    printf("*  5:show    6:clear   *
");
    printf("************************
");
}
int main()
{
    struct Contact my_contact;                  
    int input = 1;
    my_contact.count = 0;                   
    while (input)                           
    {
        show_menu();
        printf("please input:");
        scanf("%d", &input);
        switch (input)
        {
        case 1:
            add_peo(&my_contact);
            break;
        case 2:
            del_peo(&my_contact);
            break;
        case 3:
            find_peo(&my_contact);
            break;
        case 4:
            modify_peo(&my_contact);
            break;
        case 5:
            show_peo(&my_contact);
            break;
        case 6:
            clear_peo(&my_contact);
            break;
        default:
            break;
        }
    }
    return 0;
}