C语言实现通讯录的示例代码

目录

• 一、Contact.h文件
• 二、Contact.c文件
• 三、test.c文件

一、Contact.h文件

包含函数的声明

#pragma once
#define _CRT_SECURE_NO_WARNINGS 1
#include 
#include 
#include 
#include 

#define MAX 100
#define MAX_NAME 20
#define MAX_SEX 10
#define MAX_TELE 20
#define MAX_ADDR 30
#define MAX_LEG 5

//结构体的定义，用于储存通讯录数据
struct Contact
{
	char name[MAX_NAME];
	char sex[MAX_SEX];
	char tele[MAX_TELE];
	char addr[MAX_ADDR];
	int age;
};

struct PeoInfo
{
	struct Contact* data;
	int length;
	int capacity;
};

//定义游戏菜单函数
void menu();

//定义初始结构体函数
void InitContact(struct PeoInfo* abs);

//添加通讯录消息函数的声明
void AddConInfo(struct PeoInfo* abs);

//查询信息是否存在函数
int IsExist(struct PeoInfo* abs, char* name);

//删除指定信息函数的定义
void DelConInfo(struct PeoInfo* abs);

//修改指定信息函数的定义
void ModefiInfo(struct PeoInfo* abs);

//查询指定信息函数的定义
void SearchInfo(struct PeoInfo* abs);

//展示通讯录信息函数的定义
void ShowInfo(struct PeoInfo* abs);

//清空通讯录列表函数的定义
void ClearInfo(struct PeoInfo* abs);

//排序通讯录信息函数的定义
void SortInfo(struct PeoInfo* abs);

//扩容函数的定义
int IncMemmery(struct PeoInfo* abs);

//释放内存函数的定义
void FreeInfo(struct PeoInfo* abs);

//保存通讯录函数的定义
void saveInfo(struct PeoInfo* abs);

//加载通讯录函数的定义
void loadInfo(struct PeoInfo* abs);

二、Contact.c文件

包含函数的实现

#include "contact.h";



//游戏菜单函数的实现
void menu()
{
	printf("***********************************\n");
	printf("*******1.Add          2.Del********\n");
	printf("*******3.Modefi       4.Search*****\n");
	printf("*******5.show         6.Clear******\n");
	printf("*******7.sort         0.exit*******\n");
	printf("***********************************\n");
}


//扩容函数的实现
int IncMemmery(struct PeoInfo* abs)
{
	struct Contact* ptr = (struct Contact*)realloc(abs->data, (abs->capacity + 3) * sizeof(struct Contact));
	if (ptr == NULL)
	{
		perror("GetMemmery():");
		return -1;
	}
	else
	{
		abs->data = ptr;
		abs->capacity += 3;
		return 1;
	}
}

//初始化通讯录函数的实现
void loadInfo(struct PeoInfo* abs)
{
	FILE* pf;
	pf = fopen("Contact.txt", "rb");
	if (pf == NULL)
	{
		perror("InitContact():");
		return;
	}
	struct Contact tmp = { 0 };
	while (fread(&tmp, sizeof(struct Contact), 1, pf))
	{
		if (abs->length == abs->capacity)
		{
			IncMemmery(abs);
		}
		*(abs->data + abs->length) = tmp;
		abs->length++;
	}
	fclose(pf);
	pf == NULL;
}

void InitContact(struct PeoInfo* abs)
{
	assert(abs);
	abs->length = 0;
	abs->data = (struct Contact*)malloc(MAX_LEG * sizeof(struct Contact));
	abs->capacity = MAX_LEG;
	loadInfo(abs);
}

//查询信息是否存在函数的实现
int IsExist(struct PeoInfo* abs, char* name)
{
	for (int i = 0; i < abs->length; i++)
	{
		if (strcmp(abs->data[i].name, name) == 0)
		{
			return i;
		}
	}
	return -1;
}

//添加通讯录消息函数的实现
void AddConInfo(struct PeoInfo* abs)
{
	assert(abs);
	if (abs->capacity == abs->length)
	{
		int ret  = IncMemmery(abs);
		if (ret == 1)
		{
			printf("扩容成功！\n");
		}
		else
		{
			printf("扩容失败，内存不足！\n");
			return;
		}
	}
	
	printf("请输入添加的姓名：>");
	scanf("%s", abs->data[abs->length].name);
	printf("请输入添加的姓别：>");
	scanf("%s", abs->data[abs->length].sex);
	printf("请输入添加的联系方式：>");
	scanf("%s", abs->data[abs->length].tele);
	printf("请输入添加的住址：>");
	scanf("%s", abs->data[abs->length].addr);
	printf("请输入添加的年龄：>");
	scanf("%d", &(abs->data[abs->length].age));

	abs->length++;
	printf("已成功添加联系人！\n");
}

//删除指定信息函数的实现
void DelConInfo(struct PeoInfo* abs)
{
	assert(abs);
	char name[MAX_NAME];
	printf("请输入要删除通讯录的姓名：>");
	scanf("%s", name);
	int ret = IsExist(abs, name);
	if (ret == -1)
	{
		printf("不存在此联系人！\n");
	}
	else
	{
		for (int i = ret; i < abs->length; i++)
		{
			abs->data[i] = abs->data[i + 1];
		}
		abs->length--;
	}
}

//修改制定信息函数的实现
void ModefiInfo(struct PeoInfo* abs)
{
	char name[MAX_NAME];
	printf("请输入要修改通讯录信息的姓名：>");
	scanf("%s", name);
	int ret = IsExist(abs, name);
	if (ret == -1)
	{
		printf("要修改指定联系人不存在！\n");
	}
	else
	{
		printf("请输入要修改的姓名：>");
		scanf("%s", abs->data[ret].name);
		printf("请输入要修改的性别：>");
		scanf("%s", abs->data[ret].sex);
		printf("请输入要修改的联系方式：>");
		scanf("%s", abs->data[ret].tele);
		printf("请输入要修改的住址：>");
		scanf("%s", abs->data[ret].addr);
		printf("请输入要修改的年龄：>");
		scanf("%d", &(abs->data[ret].age));

		printf("修改成功！\n");

	}
}

//查询指定信息函数的实现
void SearchInfo(struct PeoInfo* abs)
{
	assert(abs);
	char name[MAX_NAME];
	printf("请输入要查询通讯录的姓名：>");
	scanf("%s", name);
	int ret = IsExist(abs, name);
	if (ret == -1)
	{
		printf("要查找的信息不存在！");
	}
	else
	{
		printf("%-20s\t%-10s\t%-20s\t%-20s\t%-10s\n","姓名","性别","联系方式","住址","年龄");
		printf("%-20s\t%-10s\t%-20s\t%-20s\t%-10d\n",
			abs->data[ret].name,
			abs->data[ret].sex,
			abs->data[ret].tele,
			abs->data[ret].addr,
			abs->data[ret].age);

		printf("查询成功！\n");
	}
	
}

//展示通讯录信息函数的实现
void ShowInfo(struct PeoInfo* abs)
{
	assert(abs);
	printf("%-20s\t%-10s\t%-20s\t%-20s\t%-10s\n", "姓名", "性别", "联系方式", "住址", "年龄");
	for (int i = 0; i < abs->length; i++)
	{
		printf("%-20s\t%-10s\t%-20s\t%-20s\t%-10d\n",
			abs->data[i].name,
			abs->data[i].sex,
			abs->data[i].tele,
			abs->data[i].addr,
			abs->data[i].age);
	}
}

//清空通讯录列表函数的实现
void ClearInfo(struct PeoInfo* abs)
{
	assert(abs);
	struct Contact* ptr = (struct Contact*)realloc(abs->data, MAX_LEG * (sizeof(struct Contact)));
	if (ptr == NULL)
	{
		perror("ClearInfo():");
	}
	else
	{
		abs->length = 0;
		abs->data = ptr;
		memset(abs->data, 0, MAX_LEG * sizeof(struct Contact));
		abs->capacity = MAX_LEG;
		printf("清空通讯录成功！\n");
	}
}


//排序通讯录函数的实现
int CmpByAge(const void* e1, const void* e2)
{
	return ((struct Contact*)e1)->age - ((struct Contact*)e2)->age;
}

int CmpByName(const void* e1, const void* e2)
{
	return strcmp(((struct Contact*)e1)->name, ((struct Contact*)e2)->name);
}

void SortInfo(struct PeoInfo* abs)
{
	getchar();
	char ch;
	printf("请输入排序的方式:>N(姓名)、A(年龄)，N or A：>");
	ch = getchar();
	if (ch == 'A')
	{
		qsort(abs->data, abs->length, sizeof(struct Contact), CmpByAge);
		printf("已按照年龄排序成功！\n");
	}
	else if(ch == 'N')
	{
		qsort(abs->data, abs->length, sizeof(struct Contact), CmpByName);
		printf("已按照姓名排序成功！\n");
	}
	else
	{
		printf("输入错误！\n");
	}
}

//释放内存函数的实现
void FreeInfo(struct PeoInfo* abs)
{
	free(abs->data);
	abs->data = NULL;
}


//保存通讯录函数的实现
void saveInfo(struct PeoInfo* abs)
{
	FILE* pf;
	pf = fopen("Contact.txt", "wb");
	if (pf == NULL)
	{
		perror("saveInfo():");
		return;
	}
	for (int i = 0; i < abs->length; i++)
	{
		fwrite(abs->data + i, sizeof(struct Contact), 1, pf);
	}
	fclose(pf);
	pf = NULL;
}

三、test.c文件

包含主函数即代码思想

#include "contact.h";

int main()
{
	int input = 0;
	struct PeoInfo con;
	//初始化结构体
	InitContact(&con);
	do
	{
		menu();
		printf("请选择：>");
		scanf("%d", &input);
		switch (input)
		{
		case 1:
			AddConInfo(&con);
			break;
		case 2:
			DelConInfo(&con);
			break;
		case 3:
			ModefiInfo(&con);
			break;
		case 4:
			SearchInfo(&con);
			break;
		case 5:
			ShowInfo(&con);
			break;
		case 6:
			ClearInfo(&con);
			break;
		case 7:
			SortInfo(&con);
			break;
		case 0:
			saveInfo(&con);
			FreeInfo(&con);
			printf("退出通讯录！");
			break;
		default:
			printf("选择错误！\n");
		}
	} while (input);
	return 0;
}

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