动态通讯录

test.c

#define _CRT_SECURE_NO_WARNINGS
#include"contact.h"
void menu()
{
    printf("****************************************************\n");
    printf("*************   1.add      2.del********************\n");
    printf("*************   3.search   4.modify*****************\n");
    printf("*************   5.show     6.sort*******************\n");
    printf("*************   0.exit******************************\n");
    printf("****************************************************\n");
}
enum Opition
{
    EXIT,
    ADD,
    DEL,
    SEARCH,
    MODIFY,
    SHOW,
    SORT
};
int main()
{
    int input = 0;
    Contact con;
    InitContact(&con);
    do
    {
        menu();
        printf("请输入选项\n");
        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 SORT:
            SortContact(&con);
            break;
        case EXIT:
            DestroyContact(&con);
            printf("退出通讯录\n");
            break;
        default:
            break;
        }
    } while (input);
}

contact.c

#define _CRT_SECURE_NO_WARNINGS
#include"contact.h"
void InitContact(Contact* pc)
{
	pc->sz = 0;
	pc->data = (PeoInfo*)malloc(DEFAULT_SZ * sizeof(PeoInfo));
	if (pc->data == NULL)
	{
		printf("通讯录初始化失败:%s\n", strerror(errno));
		return;
	}
	pc->sz = 0;
	pc->capacity = DEFAULT_SZ;
}
void DestroyContact(Contact* pc)
{
	free(pc->data);
	pc->data = NULL;
	pc->capacity = 0;
	pc->sz = 0;
	printf("释放内存...\n");
}
int checkCapacity(Contact* pc)
{
	if (pc->sz == pc->capacity)
	{
		PeoInfo* ptr = realloc(pc->data, (pc->capacity +INC_SZ) * sizeof(PeoInfo));
		if (ptr == NULL)
		{
			printf("checkCapacity:%s\n", strerror(errno));
			return 0;
		}
		else
		{
			pc->data = ptr;
			pc->capacity += INC_SZ;
			printf("增容成功,当前容量为%d\n", pc->capacity);
			return 1;
		}
	}
	return 1;
}
void AddContact(Contact* pc)
{
	if(checkCapacity(pc)==0)
	{
		printf("空间不够,扩容失败\n");
		return;
	}
	else
	{
		printf("请输入名字\n");
		scanf("%s", pc->data[pc->sz].name);
		printf("请输入年龄\n");
		scanf("%d", &(pc->data[pc->sz].age));
		printf("请输入性别\n");
		scanf("%s", pc->data[pc->sz].sex);
		printf("请输入电话\n");
		scanf("%s", pc->data[pc->sz].tele);
		printf("请输入地址\n");
		scanf("%s", pc->data[pc->sz].addr);
		pc->sz++;
		printf("添加成功\n");
	}
}
void ShowContact(Contact* pc)
{
	int i = 0;
	printf("%-10s %-4s %-5s %-12s %-30s\n", "姓名", "年龄", "性别", "电话", "地址");
	for (i = 0; i < pc->sz; i++)
	{
		printf("%-10s %-4d %-5s %-12s %-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(const Contact* pc, char name[])
{
	int i = 0;
	for (i = 0; i < pc->sz; i++)
	{
		if (0 == strcmp(name, pc->data[i].name))
		{
			return i;
		}
	}

	return -1;
}
void DelContact(Contact* pc)
{
	int i = 0;
	if (pc->sz == 0)
	{
		printf("通讯录为空，无法删除\n");
		return;
	}
	char name[MAX_NAME] = { 0 };
	printf("输入要删除人的名字\n");
	scanf("%s", name);
	int pos = FindByName(pc, name);
	if (pos == -1)
	{
		printf("要删除的人不存在\n");
		return;
	}
	for (i = pos; i < pc->sz - 1; i++)
	{
		pc->data[i] = pc->data[i + 1];
	}
	pc->sz--;
	printf("删除成功\n");
}
void SearchContact(const Contact* pc)
{
	char name[MAX_NAME] = { 0 };
	printf("请输入要查找人的名字\n");
	scanf("%s", name);
	int pos = FindByName(pc, name);
	if (pos == -1)
	{
		printf("要查找的人不存在\n");
		return;
	}
	printf("%-10s %-4s %-5s %-12s %-30s\n", "姓名", "年龄", "性别", "电话", "地址");
	printf("%-10s %-4d %-5s %-12s %-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 };
	printf("请输入要修改人的名字\n");
	scanf("%s", name);
	int pos = FindByName(pc, name);
	if (pos == -1)
	{
		printf("要修改的人不存在\n");
		return;
	}
	printf("请输入名字\n");
	scanf("%s", pc->data[pos].name);
	printf("请输入年龄\n");
	scanf("%d", &(pc->data[pos].age));
	printf("请输入性别\n");
	scanf("%s", pc->data[pos].sex);
	printf("请输入电话\n");
	scanf("%s", pc->data[pos].tele);
	printf("请输入地址\n");
	scanf("%s", pc->data[pos].addr);
	printf("修改成功\n");
}
int cmp_by_name(const void* e1, const void* e2)
{
	return strcmp(((PeoInfo*)e1)->name, ((PeoInfo*)e2)->name);
}
void SortContact(Contact* pc)
{
	qsort(pc->data, pc->sz, sizeof(PeoInfo), cmp_by_name);
	printf("排序成功\n");
}

contact.h

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<errno.h>
#include<malloc.h>
#define MAX 100
#define MAX_NAME 20
#define MAX_SEX 5
#define MAX_TELE 12
#define MAX_ADDR 30
#define DEFAULT_SZ 3
#define INC_SZ 2
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;
	int sz;
	int capacity;
}Contact;
void InitContact(Contact* pc);
void AddContact(Contact* pc);
void ShowContact(Contact* pc);
void DelContact(Contact* pc);
void SearchContact(const Contact* pc);
void ModifyContact(Contact* pc);
void SortContact(Contact* pc); 
void DestroyContact(Contact* pc);