一個C++基礎語法實現的通訊錄管理系統

#include<iostream>
#include<string>
#define MAX 1000
using namespace std;
//聯繫人結構體
struct Person {
	string m_Name;	//姓名
	int m_Sex;		//性別 1.男 2.女
	int m_Age;
	string m_Phone;
	string m_Addr;
};
//通訊錄結構體
struct AddressBook {
	struct Person personArray[MAX];
	int m_Size;
};

//菜單界面
void showmenu() {
	cout << "************************" << endl;
	cout << "***** 1.添加聯繫人 *****" << endl;
	cout << "***** 2.顯示聯繫人 *****" << endl;
	cout << "***** 3.刪除聯繫人 *****" << endl;
	cout << "***** 4.查找聯繫人 *****" << endl;
	cout << "***** 5.修改聯繫人 *****" << endl;
	cout << "***** 6.清空聯繫人 *****" << endl;
	cout << "***** 0.退出通訊錄 *****" << endl;
	cout << "************************" << endl;
}
//添加聯繫人
void addPerson(AddressBook* abs) {
	//判斷通訊錄是否已滿
	if (abs->m_Size == MAX) {
		cout << "通訊錄已滿，無法添加。" << endl;
	}
	else {
		string name;
		cout << "請輸入姓名：" << endl;
		cin >> name;
		abs->personArray[abs->m_Size].m_Name = name;

		int sex = 0;
		cout << "請輸入性別：" << endl;
		cout << "1 --- 男" << endl;
		cout << "2 --- 女" << endl;
		while (true)
		{
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->personArray[abs->m_Size].m_Sex = sex;
				break;
			}
			cout << "輸入有誤，請重新輸入" << endl;
		}
		
		int age = 0;
		cout << "請輸入年齡：" << endl;
		cin >> age;
		abs->personArray[abs->m_Size].m_Age = age;

		string phone;
		cout << "請輸入電話：" << endl;
		cin >> phone;
		abs->personArray[abs->m_Size].m_Phone = phone;

		string address;
		cout << "請輸入地址：" << endl;
		cin >> address;
		abs->personArray[abs->m_Size].m_Addr = address;

		abs->m_Size++;
		cout << "添加成功！" << endl;

		system("pause");	//請按任意鍵繼續
		system("cls");		//清屏
	}
}

//顯示所有聯繫人
void showPerson(AddressBook* abs) {
	//判斷通訊錄中人數是否爲0，如果爲0，提示記錄爲空
	//如果不爲0.顯示記錄的聯繫人信息
	if (abs->m_Size == 0) {
		cout << "當前記錄爲空" << endl;
	}
	else {
		for (int i = 0; i < abs->m_Size; i++) {
			cout << "姓名: " << abs->personArray[i].m_Name
				<< " 性別：" << (abs->personArray[i].m_Sex == 1? "男" : "女")
				<< " 年齡: " << abs->personArray[i].m_Age
				<< " 地址: " << abs->personArray[i].m_Addr
				<< " 電話：" << abs->personArray[i].m_Phone << endl;
		}
	}
	system("pause"); 
	system("cls");
}
//檢測聯繫人是否存在,存在則返回該聯繫人數組下標，不存在返回-1
int isExist(AddressBook* abs, string name) {
	for (int i = 0; i < abs->m_Size; i++) {
		if (abs->personArray[i].m_Name == name) {
			return i;
		}
	}
	return -1;
}
//刪除指定的聯繫人
void deletePerson(AddressBook* abs) {
	cout << "請輸入要刪除的聯繫人:" << 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--;	//更新通訊錄中的人員數
		cout << "刪除成功。" << endl;
	}
	else {
		cout << "查無此人。" << endl;
	}
	system("pause");
	system("cls");
}
// 查找聯繫人
void findPerson(AddressBook* abs) {
	cout << "請輸入您要查找的聯繫人：" << endl;
	string name;
	cin >> name;
	int ret = isExist(abs, name);
	if (ret != -1) {
		cout << "姓名: " << abs->personArray[ret].m_Name
			<< " 性別：" << (abs->personArray[ret].m_Sex == 1 ? "男" : "女")
			<< " 年齡: " << abs->personArray[ret].m_Age
			<< " 地址: " << abs->personArray[ret].m_Addr
			<< " 電話：" << abs->personArray[ret].m_Phone << endl;
	}
	else {
		cout << "查無此人!" << endl;
	}
	system("pause");
	system("cls");
}

void modifyPerson(AddressBook* abs) {
	cout << "請輸入您要修改的聯繫人:" << endl;
	string name;
	cin >> name;
	int ret = isExist(abs, name);
	if (ret != -1) {
		string name;
		cout << "請輸入姓名：" << endl;
		cin >> name;
		abs->personArray[ret].m_Name = name;

		int sex = 0;
		cout << "請輸入性別：" << endl;
		cout << "1 --- 男" << endl;
		cout << "2 --- 女" << endl;
		while (true)
		{
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->personArray[ret].m_Sex = sex;
				break;
			}
			cout << "輸入有誤，請重新輸入" << endl;
		}

		int age = 0;
		cout << "請輸入年齡：" << endl;
		cin >> age;
		abs->personArray[ret].m_Age = age;

		string phone;
		cout << "請輸入電話：" << endl;
		cin >> phone;
		abs->personArray[ret].m_Phone = phone;

		string address;
		cout << "請輸入地址：" << endl;
		cin >> address;
		abs->personArray[ret].m_Addr = address;

		cout << "修改成功！" << endl;
	}
	else {
		cout << "查無此人。" << endl;
	}
	system("pause");
	system("cls");
}
//清空聯繫人,只需將通訊錄的大小改爲0 做邏輯清空即可，
void cleanPerson(AddressBook* abs) {
	abs->m_Size = 0;	//將當前記錄聯繫人數量置爲0，做邏輯清空
	cout << "通訊錄已經清空。" << endl;
	system("pause");
	system("cls");
}
int main() {
	//創建通訊錄結構體變量
	AddressBook abs;
	abs.m_Size = 0;

	int select = 0;//用戶選擇輸入變量
	while (true)
	{
		//菜單調用
		showmenu();
		cin >> select;
		switch (select) {
		case 1:
			addPerson(&abs);	//利用地址傳遞可以修飾實參。
			break;
		case 2:
			showPerson(&abs);
			break;
		case 3:
			deletePerson(&abs);
			break;
		case 4:
			findPerson(&abs);
			break;
		case 5:
			modifyPerson(&abs);
			break;
		case 6:
			cleanPerson(&abs);
			break;
		case 0:
			cout << "歡迎下次使用" << endl;
			system("pause");
			return 0;
		default:
			break;
		}
	}

	system("pause");
	return 0;
}