《通讯录管理系统》C代码实现

此代码只涉及到结构体、指针、循环等C语言基础知识；没有文件交互！

代码如下：

#include 
using namespace std;
#include 
#define Max 1000 //最大人数
// 设计联系人结构体
struct Person {
	//姓名
	string m_Name;
	//性别 1男 2 女
	int m_Sex;
	//年龄
	int m_Age;
	//电话
	string m_Phone;
	//住址
	string m_Address;
};
// 设计通讯录结构体
struct Addressbooks {
	//通讯录中保存的联系人数组
	struct Person personArray[Max];
	//通讯录中当前记录联系人个数
	int m_Size;
};

void ShowMenu() {
	cout << "*************************" << endl;
	cout << "***** 1、添加联系人 *****" << endl;
	cout << "***** 2、显示联系人 *****" << endl;
	cout << "***** 3、删除联系人 *****" << endl;
	cout << "***** 4、查找联系人 *****" << endl;
	cout << "***** 5、修改联系人 *****" << endl;
	cout << "***** 6、清空联系人 *****" << endl;
	cout << "***** 0、退出通讯录 *****" << endl;
	cout << "*************************" << endl;
}
//判断是否存在查询的人员，存在返回在数组中索引位置，不存在返回-1
int isExist(Addressbooks * abs, string name)
{ 
	for (int i = 0; i < abs->m_Size; i++)
	{
		if (abs->personArray[i].m_Name == name)
		{
			return i;
		}
	}
	return -1;
}

//1、添加联系人信息
void addPerson(Addressbooks *abs) {
	//判断通讯录是否满了
	if (abs->m_Size == Max) {
		cout << "通讯录已满，无法添加" << endl;
		return;
	}
	else {
		//姓名
		string name;
		cout << "请输入姓名:" << endl;
		cin >> name;
		abs->personArray[abs->m_Size].m_Name = name;
		cout << "请输入性别:" << endl;
		cout << "1--男" << endl;
		cout << "2--女" << endl;
		//性别
		int sex = 0;
		while (true) {
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->personArray[abs->m_Size].m_Sex = sex;
				break;
			}
			cout << "输入有误，请重新输入";
		}
		//年龄
		cout << "请输入年龄：" << endl;
		int age = 0;
		cin >> age;
		abs->personArray[abs->m_Size].m_Age = age;

		//联系电话
		cout << "请输入联系电话：" << endl;
		string phone = "";
		cin >> phone;
		abs->personArray[abs->m_Size].m_Phone = phone;

		//家庭住址
		cout << "请输入家庭住址：" << endl;
		string address;
		cin >> address;
		abs->personArray[abs->m_Size].m_Address = address;

		//更新通讯录人数
		abs->m_Size++;

		cout << "添加成功" << endl;
		system("pause");
		system("cls");
	}
}
//2、显示所有联系人
void showPerson(Addressbooks *abs) {
	if (abs->m_Size==0) {
		cout << "当前记录为空" << endl;
	}
	else {
		for (int i = 0; i < abs->m_Size; i++) {
			cout << "姓名： " << abs->personArray[i].m_Name <<"\t";
			cout << "性别： " << (abs->personArray[i].m_Sex==1 ? "男":"女") <<"\t";
			cout << "年龄： " << abs->personArray[i].m_Age <<"\t";
			cout << "电话： " << abs->personArray[i].m_Phone <<"\t";
			cout << "住址： " << abs->personArray[i].m_Address<> name;

	int ret = isExist(abs, name);
	if (ret != -1)
	{
		//数据前移
		for (int i = ret; i < abs->m_Size; i++)
		{
			abs->personArray[i] = abs->personArray[i + 1];
		}
		abs->m_Size--;
		cout << "删除成功" << endl;
	}
	else
	{
		cout << "查无此人" << endl;
	}

	system("pause");
	system("cls");
}
//4、查找指定联系人信息
void findPerson(Addressbooks *abs) {
	cout << "请输入您要查找的联系人" << endl;
	string name;
	cin >> name;
	int ret = isExist(abs,name);
	if (ret != -1) {
		cout << "姓名：" << abs->personArray[ret].m_Name << "\t";
		cout << "性别：" << abs->personArray[ret].m_Sex << "\t";
		cout << "年龄：" << abs->personArray[ret].m_Age << "\t";
		cout << "电话：" << abs->personArray[ret].m_Phone << "\t";
		cout << "住址：" << abs->personArray[ret].m_Address << endl;
	}
	else
	{
		cout << "查无此人" << endl;
	}
	system("pause");
	system("cls");
}
//5、修改联系人
void modifyPerson(Addressbooks * abs)
{
	cout << "请输入您要修改的联系人" << endl;
	string name;
	cin >> name;

	int ret = isExist(abs, name);
	if (ret != -1)
	{
		//姓名
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->personArray[ret].m_Name = name;

		cout << "请输入性别：" << endl;
		cout << "1 -- 男" << endl;
		cout << "2 -- 女" << endl;

		//性别
		int sex = 0;
		while (true)
		{
			cin >> sex;
			if (sex == 1 || sex == 2)
			{
				abs->personArray[ret].m_Sex = sex;
				break;
			}
			cout << "输入有误，请重新输入";
		}

		//年龄
		cout << "请输入年龄：" << endl;
		int age = 0;
		cin >> age;
		abs->personArray[ret].m_Age = age;

		//联系电话
		cout << "请输入联系电话：" << endl;
		string phone = "";
		cin >> phone;
		abs->personArray[ret].m_Phone = phone;

		//家庭住址
		cout << "请输入家庭住址：" << endl;
		string address;
		cin >> address;
		abs->personArray[ret].m_Address = address;

		cout << "修改成功" << endl;
	}
	else
	{
		cout << "查无此人" << endl;
	}

	system("pause");
	system("cls");
}
//6、清空所有联系人
void cleanPerson(Addressbooks * abs)
{
	cout << "是否清空通讯录？确定按Y/y,否则按N/n" << endl;
	string key;
	cin >> key;
	if (key == "y"|| key == "Y") {
		abs->m_Size = 0;
		cout << "通讯录已清空" << endl;
	}
	else if (key == "n" || key == "N") {
		;
	}
	
	system("pause");
	system("cls");
}

int main() {
	//创建通讯录
	Addressbooks abs;
	//初始化通讯录中的人数
	abs.m_Size = 0;
	int select = 0;  //创建用户选择输入的的变量
	while (true) {
		//菜单调用 显示菜单
		ShowMenu();
		//
		cin >> select;
		switch (select) {
		case 1: // 1、添加联系人
			addPerson(&abs);
			break;
		case 2: //2、显示联系人
			showPerson(&abs);
			break;
		case 3: //3、删除联系人
			deletePerson(&abs);
			break;
		case 4: //4、查找联系人
			findPerson(&abs);
			break;
		case 5: //5、修改联系人
			modifyPerson(&abs);
			break;
		case 6: //6、清空联系人
			cleanPerson(&abs);
			break;
		case 0: //0、退出通讯录

			cout << "欢迎下次使用" << endl;
			system("pause");
			return 0;
			break;
		default:
			break;
		}
	}
	
	system("pause");
	return 0;
}