2.通讯录管理系统

#include<iostream>
#include<string>
using namespace std;

#define MAX 1000

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;
}


struct Person
{
	string m_Name;
	int m_Sex;
	int m_Age;
	string m_Phone;
	string m_Addr;
};


struct Addressbooks
{
	Person personArray[MAX];
	int m_Size;
};


void addPerson(Addressbooks *abs) {
	if (abs->m_Size == MAX) {
		cout << "通讯录已满，无法添加" << endl;
		return;
	}
	else {
		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 << "1 -- 女" << endl;

		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" << endl;
		}

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

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

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

		abs->m_Size++;

		cout << "添加成功" << endl;
		system("pause");
		system("cls");
	}
}


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_Addr << endl;
		}
	}
	system("pause");
	system("cls");
}


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;
}


void deletePerson(Addressbooks *abs) {
	cout << "请输入您要删除的联系人" << endl;
	string name;
	cin >> name;
	int ret = isExist(abs, name);
	if (ret != -1) {
		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");
}


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_Addr << endl;
	}
	else {
		cout << "查无此人" << endl;
	}
	system("pause");
	system("cls");
}


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) {
		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;
		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" << endl;
		}

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

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

		cout << "修改成功" << endl;
	}
	else {
		cout << "查无此人" << endl;
	}
	system("pause");
	system("cls");
}


void cleanPerson(Addressbooks *abs) {
	abs->m_Size = 0;  // 逻辑清空
	cout << "此通讯录已清空" << endl;
	system("pause");
	system("cls");
}


int main() {

	Addressbooks abs;
	abs.m_Size = 0;

	int select = 0;

	while (true) {
		showMenu();
		
		cin >> select;

		switch (select)
		{
		case 1:  // 添加联系人
			addPerson(&abs);
			break;
		case 2:  // 显示联系人
			showPerson(&abs);
			break;
		case 3:  // 删除联系人
			deletePerson(&abs);
			break;
		case 4:  // 查找联系人
			findPerson(&abs);
			break;
		case 5:  // 修改联系人
			modifyPerson(&abs);
			break;
		case 6:  // 清空联系人
			cleanPerson(&abs);
			break;
		case 0:
			cout << "欢迎下次使用" << endl;
			return 0;
			break;
		default:  // 退出通讯录
			break;
		}
	
	}
	return 0;
}