动态版通讯录

#include "contact.h"


/*
* 添加联系人信息
删除指定联系人信息
查找指定联系人信息
修改指定联系人信息
显示所有联系人信息
清空所有联系人
以名字排序所有联系人
*/


enum option
{
    EXIT,
    ADD,
    DEL,
    SEARCH,
    MODIFY,
    SHOW,
    CLEAR,
    SORTNAME
};

void menu()
{
    printf("*******************************************\n");
    printf("******    1.add                2.del ******\n");
    printf("******    3.search             4.modify****\n");
    printf("******    5.show               6.clear  ****\n");
    printf("******    7.sortName           0.exit *****\n");
    printf("*******************************************\n");

}
int main()
{
    int input = 0;
    Contact con;
    InitContact(&con);
    do
    {
        menu();
        printf("请选择：>");
        scanf("%d", &input);
        switch (input)
        {
        case ADD:
            AddContact(&con);
            break;
        case DEL:
            DelContact(&con);
            break;
        case SEARCH:
            SearchContact(&con);
            break;
        case MODIFY:
            ModifyContact(&con);
            break;
        case SHOW:
            ShowContact(&con);
            break;
        case CLEAR:
            ClearContact(&con);
            break;
        case SORTNAME:
            SortContact(&con);
            break;
        case EXIT:
            DestroyContact(&con);
            printf("退出通讯录\n");
            break;
        default:
            printf("选择错误\n");
            break;
        }
    } while (input);
    return 0;
}

#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>


#define DEFAULT_SZ 3
#define INC_SZ 2
#define MAX 1000
#define MAX_NAME 20
#define MAX_SEX 10
#define MAX_TELE 12
#define MAX_ADDR 30
typedef struct PeoInfo
{
    char name[MAX_NAME];
    int age;
    char sex[MAX_SEX];
    char tele[MAX_TELE];
    char addr[MAX_ADDR];
}PeoInfo;


//typedef struct Contact
//{
//    PeoInfo data[MAX];
//    int count;
//}Contact;

//动态版本
typedef struct Contact
{
    PeoInfo* data;
    int count;
    int capacity;
}Contact;

//初始化
int InitContact(Contact* pc);

//添加
void AddContact(Contact* pc);

//打印
void ShowContact(const Contact* pc);

//删除
void DelContact(Contact* pc);

//查找
void SearchContact(Contact* pc);

//修改
void ModifyContact(Contact* pc);

//清空
void ClearContact(Contact* pc);

//排序
void SortContact(Contact* pc);


//销毁
void DestroyContact(Contact* pc);

#include "contact.h"
int InitContact(Contact* pc)
{
    assert(pc);
    pc->count = 0;
    pc->data = (PeoInfo*)calloc(3,sizeof(PeoInfo));
    if (pc->data == NULL)
    {
        printf("InitContact:%s\n", strerror(errno));
        return 1;
    }
    pc->capacity = DEFAULT_SZ;
    return 0;
}


void CheckCapacity(Contact* pc)
{
    if (pc->count == pc->capacity)
    {
        PeoInfo* ptr = realloc(pc->data, (pc->capacity + INC_SZ) * sizeof(PeoInfo));
        if (ptr == NULL)
        {
            printf("ADDContact:%s\n", strerror(errno));
            return;
        }
        else
        {
            pc->data = ptr;
            pc->capacity += INC_SZ;
            printf("增容成功\n");
        }
    }
}

//动态的版本
void AddContact(Contact* pc)
{
    assert(pc);
    CheckCapacity(pc);
    printf("请输入名字：");
    scanf("%s", pc->data[pc->count].name);
    printf("请输入年龄：");
    scanf("%d", &pc->data[pc->count].age);
    printf("请输入性别：");
    scanf("%s", pc->data[pc->count].sex);
    printf("请输入电话：");
    scanf("%s", pc->data[pc->count].tele);
    printf("请输入地址：");
    scanf("%s", pc->data[pc->count].addr);

    pc->count++;
    printf("增加成功\n");
}



void ShowContact(const Contact* pc)
{
    assert(pc);
    int i = 0;
    printf("%-20s\t%-5s\t%-5s\t%-12s\t%-30s\n", "名字", "年龄", "性别", "电话", "地址");
    for (i = 0; i < pc->count; i++)
    {
        printf("%-20s\t%-3d\t%-5s\t%-12s\t%-30s\n", pc->data[i].name, pc->data[i].age,
            pc->data[i].sex, pc->data[i].tele, pc->data[i].addr);
    }
}

static int FindByName(Contact* pc, char name[])
{
    assert(pc);
    int i = 0;
    for (i = 0; i < pc->count; i++)
    {
        if (0 == strcmp(pc->data[i].name, name))
        {
            return i;
        }
    }
    return -1;
}

void DelContact(Contact* pc)
{
    char name[MAX_NAME] = { 0 };
    assert(pc);
    int i = 0;
    if (pc->count == 0)
    {
        printf("通讯录为空，没有信息可以删除\n");
        return;
    }
    printf("请输入要删除人的名字:>");
    scanf("%s", name);

    //查找
    int pos = FindByName(pc, name);

    if (pos == -1)
    {
        printf("要删除的人不存在\n");
        return;
    }
    //删除
    for (i = pos; i < pc->count - 1; i++)
    {
        pc->data[i] = pc->data[i + 1];
    }
    pc->count--;
    printf("删除成功\n");
}


void SearchContact(Contact* pc)
{
    char name[MAX_NAME] = { 0 };
    assert(pc);
    printf("请输入要查找人的名字：>");
    scanf("%s", name);
    int pos = FindByName(pc, name);
    if (pos == -1)
    {
        printf("要查找的人不存在\n");
        return;
    }
    else
    {
        printf("%-20s\t%-5s\t%-5s\t%-12s\t%-30s\n", "名字", "年龄", "性别", "电话", "地址");
        printf("%-20s\t%-3d\t%-5s\t%-12s\t%-30s\n", pc->data[pos].name, pc->data[pos].age,
            pc->data[pos].sex, pc->data[pos].tele, pc->data[pos].addr);
    }

}


void ModifyContact(Contact* pc)
{
    char name[MAX_NAME] = { 0 };
    assert(pc);
    printf("请输入要修改人的名字：>");
    scanf("%s", name);
    int pos = FindByName(pc, name);
    if (pos == -1)
    {
        printf("要修改的人不存在\n");
        return;
    }
    else
    {
        printf("请输入名字：");
        scanf("%s", pc->data[pos].name);
        printf("请输入年龄：");
        scanf("%d", &pc->data[pos].age);
        printf("请输入性别：");
        scanf("%s", pc->data[pos].sex);
        printf("请输入电话：");
        scanf("%s", pc->data[pos].tele);
        printf("请输入地址：");
        scanf("%s", pc->data[pos].addr);
        printf("修改成功\n");
    }

}


void ClearContact(Contact* pc)
{
    assert(pc);
    pc->count = 0;
    memset(pc->data, 0, sizeof(pc->data));
    printf("清空成功！\n");

}



int cmp_by_name(const void* e1, const void* e2)
{
    return strcmp(((PeoInfo*)e1)->name, ((PeoInfo*)e2)->name);
}
void SortContact(Contact* pc)
{
    assert(pc);
    for (int i = 0; i < pc->count - 1; i++)
    {
        qsort(pc->data, pc->count, sizeof(pc->data[0]), cmp_by_name);
    }
    printf("排序成功！\n");
}



void DestroyContact(Contact* pc)
{
    assert(pc);
    free(pc->data);
    pc->data = NULL;

}