一个C++基础语法实现的通讯录管理系统

#include<iostream>
#include<string>
#define MAX 1000
using namespace std;
//联系人结构体
struct Person {
	string m_Name;	//姓名
	int m_Sex;		//性别 1.男 2.女
	int m_Age;
	string m_Phone;
	string m_Addr;
};
//通讯录结构体
struct AddressBook {
	struct Person personArray[MAX];
	int m_Size;
};

//菜单界面
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;
}
//添加联系人
void addPerson(AddressBook* abs) {
	//判断通讯录是否已满
	if (abs->m_Size == MAX) {
		cout << "通讯录已满，无法添加。" << endl;
	}
	else {
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->personArray[abs->m_Size].m_Name = name;

		int sex = 0;
		cout << "请输入性别：" << 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 << "输入有误，请重新输入" << endl;
		}
		
		int age = 0;
		cout << "请输入年龄：" << endl;
		cin >> age;
		abs->personArray[abs->m_Size].m_Age = age;

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

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

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

		system("pause");	//请按任意键继续
		system("cls");		//清屏
	}
}

//显示所有联系人
void showPerson(AddressBook* abs) {
	//判断通讯录中人数是否为0，如果为0，提示记录为空
	//如果不为0.显示记录的联系人信息
	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
				<< " 性别：" << (abs->personArray[i].m_Sex == 1? "男" : "女")
				<< " 年龄: " << abs->personArray[i].m_Age
				<< " 地址: " << abs->personArray[i].m_Addr
				<< " 电话：" << abs->personArray[i].m_Phone << endl;
		}
	}
	system("pause"); 
	system("cls");
}
//检测联系人是否存在,存在则返回该联系人数组下标，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;
}
//删除指定的联系人
void deletePerson(AddressBook* abs) {
	cout << "请输入要删除的联系人:" << 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--;	//更新通讯录中的人员数
		cout << "删除成功。" << endl;
	}
	else {
		cout << "查无此人。" << endl;
	}
	system("pause");
	system("cls");
}
// 查找联系人
void findPerson(AddressBook* 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
			<< " 性别：" << (abs->personArray[ret].m_Sex == 1 ? "男" : "女")
			<< " 年龄: " << abs->personArray[ret].m_Age
			<< " 地址: " << abs->personArray[ret].m_Addr
			<< " 电话：" << abs->personArray[ret].m_Phone << endl;
	}
	else {
		cout << "查无此人!" << endl;
	}
	system("pause");
	system("cls");
}

void modifyPerson(AddressBook* 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;

		int sex = 0;
		cout << "请输入性别：" << 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 << "输入有误，请重新输入" << endl;
		}

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

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

		string address;
		cout << "请输入地址：" << endl;
		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");
}
//清空联系人,只需将通讯录的大小改为0 做逻辑清空即可，
void cleanPerson(AddressBook* abs) {
	abs->m_Size = 0;	//将当前记录联系人数量置为0，做逻辑清空
	cout << "通讯录已经清空。" << endl;
	system("pause");
	system("cls");
}
int main() {
	//创建通讯录结构体变量
	AddressBook abs;
	abs.m_Size = 0;

	int select = 0;//用户选择输入变量
	while (true)
	{
		//菜单调用
		showmenu();
		cin >> select;
		switch (select) {
		case 1:
			addPerson(&abs);	//利用地址传递可以修饰实参。
			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 << "欢迎下次使用" << endl;
			system("pause");
			return 0;
		default:
			break;
		}
	}

	system("pause");
	return 0;
}