通讯录管理系统

通讯录管理系统简单实现的功能

addressbook.h   新建的头文件

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

typedef enum SEX
{
	man,
	woman,
}SEX;

typedef struct AddressInfo
{
	char _name[20];
	char _phone[20];
	char _address[50];
	int _age;
	SEX _sex;
}AddressInfo;

typedef struct AddressBook
{
	AddressInfo* Information;
	size_t _size;
	size_t _capacity;
}AddressBook;

//初始化通讯录
void AddressBookInit(AddressBook* pbook);
//添加联系人
void AddressBookAdd(AddressBook* pbook, AddressInfo* pinfo);
//删除联系人
void AddressBookDel(AddressBook* pbook, const char* name);
//查找联系人
AddressInfo* AddressBookFind(AddressBook* pbook, const char* name);
//打印通讯录
void AddressBookShow(AddressBook* pbook);
//更改联系人信息
void AddressBookChange(AddressBook* pbook, const char* name);
//输入联系人
void Input(AddressInfo* pinfo);
//单独打印信息
void According(AddressInfo* pinfo);
//在文件中写入信息
void AddressBookSave(AddressBook* pbook, const char* filename);
//从文件中读取信息
void AddressBookLoad(AddressBook* pbook, const char* filename);
//通讯录排序
void AddressBookSort(AddressBook* pbook);

输入联系人信息

void Input(AddressInfo* pinfo)
{
	char name[20], phone[20];
	int i = 0;
	int age = 0;
	printf("联系人姓名-->\n");
	scanf("%s", name);
	strcpy(pinfo->_name, name);
	printf("联系人电话号码-->");
	scanf("%s", phone);
	strcpy(pinfo->_phone, phone);
	printf("联系人年龄-->");
	scanf("%d", &age);
	pinfo->_age = age;
	printf("联系人性别（男-->man 女-->woman）-->");
	while (1)
	{
		scanf("%d", &i);
		if (i == 0 || i == 1)
		{
			pinfo->_sex = i;
			break;
		}
		else
		{
			printf("请输入正确的信息！\n");
		}
	}
	printf("请输入联系人地址-->\n");
	scanf("%s", pinfo->_address);
}

 添加联系人

void AddressBookAdd(AddressBook* pbook, AddressInfo* pinfo)
{
	assert(pbook&&pinfo);
	if (pbook->_size == pbook->_capacity)
	{
		pbook->Information = realloc(pbook->Information, sizeof(AddressInfo)*(pbook->_capacity) * 2);
		pbook->_capacity *= 2;
	}
	pbook->Information[pbook->_size]._age = pinfo->_age;
	pbook->Information[pbook->_size]._sex = pinfo->_sex;
	strcpy(pbook->Information[pbook->_size]._name, pinfo->_name);
	strcpy(pbook->Information[pbook->_size]._phone, pinfo->_phone);
	strcpy(pbook->Information[pbook->_size]._address, pinfo->_address);
	pbook->_size++;
}

删除联系人

void AddressBookDel(AddressBook* pbook, const char* name)
{
	size_t i = 0;
	for (i = 0; i < pbook->_size; i++)
	{