【C++】通讯录管理系统+少量数据结构

#include 
#include 
using namespace std;

#define max 1000

struct newp {
	string name;
	int sex ;
	int age ;
	string number;
	string add;
};

struct books {
	struct newp a[max];
	int size ;
};

static 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、退出通信录 *****" << endl;
	cout << "*************************" << endl;

}

 void add(books * abs) {
	if (abs->size == max) {
	
		cout << "通讯录存储空间已满，数据逸出" << endl;
		return;

	}
	else 
	{
		string name;
		cout << "输入姓名：" << endl;
		cin >> name;
		abs->a[abs->size].name = name;
		
		cout << "输入性别：\t 1 -- 男 \t 2 -- 女" << endl;
		int sex = 0;
		while (true) {
			cin >> sex;
			if (sex == 1 || sex == 2) 
			{

				abs->a[abs->size].sex = sex;
				break;

			}
			cout << "输入有误，请重新输入" << endl;
		}

		cout << "输入年龄：" << endl;
		int age = 0;
		while (true) {
			cin >> age;
			if (age > 0 && age <= 150) {

				abs->a[abs->size].age = age;
				break;

			}
			cout << "输入有误，请重新输入" << endl;
		}

		string number;
		cout << "输入手机号：" << endl;
		cin >> number;
		abs->a[abs->size].number = number;

		string add;
		cout << "输入地址：" << endl;
		cin >> add;
		abs->a[abs->size].add = add;

		//更新通讯录
		abs->size++;

		cout << "** 完成存储 **" << endl;
	
		system("pause");
		system("cls");//清屏
	}

}

static void show(books * abs) {

	if (abs->size == 0) {
		
		cout << "当前通讯录为空" << endl;

	}
	else
	{
		for (int i = 0; i < abs->size; i++) {

			cout << "姓名：" << abs->a[i].name << "\t";
			cout << "性别：" << (abs->a[i].sex == 1 ? "男":"女") << "\t";
			cout << "输入年龄：" << abs->a[i].age << "\t";
			cout << "手机号：" << abs->a[i].number << "\t";
			cout << "输入地址：" << abs->a[i].add << endl;

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

static int isExist(books * abs, string name) {

	for (int i = 0; i < abs->size; i++) {
	
		if (abs->a[i].name == name)
		{
			return i;
		}
	}
	return -1;

}

static void del(books * abs) {

	string name;
	cout << "请输入要删除的用户姓名" << endl;
	cin >> name;

	int ret = isExist(abs, name);
	if ( ret != -1) {

		for (int i = ret; i < abs->size; i++)
		{
			//数据前移
			abs->a[i] = abs->a[i + 1];
		}
		//更新通讯录人数
		abs->size--;
		cout << "** 删除成功 **" << endl;
	}
	else
	{
		cout << "该用户不存在" << endl;
	}
	
	system("pause");
	system("cls");
	
}

static void search(books * abs){

	string name;
	cout << "请输入要查找的用户姓名" << endl;
	cin >> name;

	int ret = isExist(abs, name);
	if ( ret != -1) {

		cout << "姓名：" << abs->a[ret].name << "\t";
		cout << "性别：" << (abs->a[ret].sex == 1 ? "男" : "女") << "\t";
		cout << "输入年龄：" << abs->a[ret].age << "\t";
		cout << "手机号：" << abs->a[ret].number << "\t";
		cout << "输入地址：" << abs->a[ret].add << endl;
	
	}
	else 
	{
		cout << "不存在该联系人" << endl;
	}

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

static void remark(books* abs) {

	string name;
	cout << "请输入要修改的用户姓名" << endl;
	cin >> name;

	int ret = isExist(abs, name);
	if (ret != -1) {

		string na;
		cout << "输入姓名:" << endl;
		cin >> na;
		abs->a[ret].name = name;

		cout << "输入性别：\t 1 -- 男 \t 2 -- 女" << endl;
		int sex = 0;
		while (true) {
			cin >> sex;
			if (sex == 1 || sex == 2)
			{
				abs->a[ret].sex = sex;
				break;
			}
			cout << "输入有误，请重新输入" << endl;
		}

		cout << "输入年龄：" << endl;
		int age = 0;
		while (true) {
			cin >> age;
			if (age > 0 && age <= 150) {

				abs->a[ret].age = age;
				break;

			}
			cout << "输入有误，请重新输入" << endl;
		}

		string number;
		cout << "输入手机号：" << endl;
		cin >> number;
		abs->a[ret].number = number;

		string add;
		cout << "输入地址：" << endl;
		cin >> add;
		abs->a[ret].add = add;

		cout << "** 完成修改 **" << endl;

	}
	else
	{
		cout << "该用户不存在" << endl;
	}

	system("pause");
	system("cls");//清屏

}

static void clean(books * abs) {

	abs->size = 0;
	cout << "通信录已清空" << endl;
	system("pause");
	system("cls");

}

int main() {
	
	books abs;
	//初始化当前人员个数
	abs.size = 0;

	int k = 0;
	
	while (true) { //true
	
		showMenu();
		
		cin >> k;

		switch (k) {
		case 1:add(&abs); break;//利用地址传递可以修改值
		case 2:show(&abs); break;
		case 3:del(&abs); break;
		case 4:search(&abs); break;
		case 5:remark(&abs); break;
		case 6:clean(&abs); break;
		case 0:cout << "** 退出程序 **" << endl;
			   system("pause");
			   return 0;
			   break;
		default:cout << "请检查输入是否有误" << endl; break;
		}

	}

	system("pause");
	return 0;
}

关于结构体引用数据的 ，什么时候用.什么时候用->

参考链接：https://blog.csdn.net/qq_33835307/article/details/82192570