通讯录管理系统

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

#define MAX 1000


//发现了两个问题
1、c++中在使用结构体时，不用像c语言一样提前申请空间
2、用c++的string字符串直接接可以做比较，也不用申请空间

//设计联系人结构体
struct Person {

	string m_Name;//名字

	int m_Sex;//性别  1、男  2、女

	//年龄
	int m_Age;
	//电话
	string m_Phone;
	//住址
	string m_Addr;

};

//设计通讯录结构体
struct Addressbooks {
	//通讯录中保存联系人的人数数组
	struct Person personArray[MAX];
	//通讯录中当前记录的联系人个数
	int m_Size;
};

//检测联系人是否存在，如果存在，返回联系人所在数组中的具体位置，不存在返回-1
//参数1	通讯录	参数2	对比姓名
int isExist(Addressbooks* abs, string name)
{
	for (int i = 0; i < abs->m_Size; i++) {
		//找到用户输入的姓名了
		if (abs->personArray[i].m_Name == name)
		{
			return i;//找到了，返回这个人在数组中的下表编号
		}
	}
	return -1;//如果遍历结束没找到，返回-1
}

//1、添加联系人
void addPerson(Addressbooks * abs)
{
	//判断通讯录是否已满，如果满了就不再添加
	if (abs->m_Size == MAX) {
		cout << "通讯录已满，无法添加！" << endl;
		return;
	}
	else {
		//添加具体联系人

		//姓名
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->personArray[abs->m_Size].m_Name = name;


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

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

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

		//更新通讯录人数
		abs->m_Size++;

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


//2、显示联系人
void showPerson(Addressbooks* abs)
{
	//判断通迅录中人数是否为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 << "\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 << "地址： " << abs->personArray[i].m_Addr << endl;


		}
		
	}
	system("pause");
	system("cls");


}

//3、删除指定的联系人
void deletePerson(Addressbooks* abs)
{
	cout << "请输入你要删除的联系人" << endl;
	string name;
	cin >> name;
	//ret == -1	未查到
	//ret !=-1  查到了

	int ret = isExist(abs,name);
	if (ret != -1)
	{
		//查找到人，要进行删除操作
		for (int i = ret; i < abs->m_Size; i++) {
			//数据前移
			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");

}

//4、查找指定的联系人
void findPerson(Addressbooks* abs)
{
	cout << "请输入你要查找的联系人" << endl;
	string name;
	cin >> name;
	//判断指定的联系人是否存在通讯录中
	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 == 1 ? "男" : "女") << "\t";
		cout << "年龄： " << abs->personArray[ret].m_Age << "\t";
		cout << "电话： " << abs->personArray[ret].m_Phone << "\t";
		cout << "地址： " << abs->personArray[ret].m_Addr << endl;
	}
	else {
		cout << "查无此人" << endl;
	}
	
	//按任意键，清屏
	system("pause");
	system("cls");
}

//5、修改指定联系人信息
void modifyPerson(Addressbooks* abs)
{
	cout << "请输入你要修改的联系人" << endl;
	string name;
	cin >> name;
	//判断指定的联系人是否存在通讯录中
	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;
		//性别
		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;
		}
		//年龄
		cout << "请输入年龄：" << endl;
		int age = 0;
		cin >> age;
		abs->personArray[ret].m_Age = age;
		//电话
		cout << "请输入联系电话：" << endl;
		string phone;
		cin >> phone;
		abs->personArray[ret].m_Phone = phone;
		//地址
		cout << "请输入家庭住址：" << endl;
		string address;
		cin >> address;
		abs->personArray[ret].m_Addr = address;
	}
	else {
		cout << "查无此人" << endl;
	}

	//按任意键，清屏
	system("pause");
	system("cls");
}


//6、清空所有联系人
void cleanPerson(Addressbooks* abs)
{
	abs->m_Size = 0;//将当前记录联系人数量置为0，做逻辑清空操作
	cout << "通讯录已清空" << endl;
	system("pasue");
	system("cls");
}


//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;
}


int main()
{

	//创建通讯录结构体变量
	Addressbooks abs;
	//初始化通讯录中人员个数
	abs.m_Size = 0;


	int select = 0;//创建用户输入变量
	while (true) {
		//调用菜单
		showMenu();
		cout << "欢迎使用!\n" << "请选择你需要的功能：";
		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;
			//exit(0);
			system("pause");
			return 0;
			break;
		default:
			break;
		}

	}






	system("pause");
	return 0;
}