C++通讯录管理系统

#define _CRT_SECURE_NO_WARNINGS
#include 
#include 
#define MAX_NUM 10
#include "address_books.h"
using namespace std;

// 菜单显示

void show_menu()
{
	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;
}


// 0. 退出通讯录

int exit_address_books()
{
	int i = 5;
	while (i != 0 && i != 1)
	{
		cout << "确定要退出吗？（0.退出、1.不退出）" << endl;
		cin >> i;
		if (i == 0)
		{
			cout << "欢迎下次使用！" << endl;
			return 0;
		}
		else if (i == 1)
		{
			cout << "继续使用！" << endl;
			return 1;
		}
		else
			cout << "输入错误，请重新输入：" << endl;
	}
}


// 1. 添加联系人

// 1.1 创建联系人结构体

struct person
{
	string name;
	int sex;
	int age;
	string phone;
	string address;
};

// 1.2 创建通讯录结构体

struct address_books
{
	struct person arr[MAX_NUM];
	int person_num;
};

// 1.3 添加联系人函数

void add_person(struct address_books* ab)
{
	if (ab->person_num > MAX_NUM) // 检查通讯录是否已满员
	{
		cout << "人数已满！" << endl;
	}
	else
	{
		string name;						// 建立姓名字符串
		cout << "请输入姓名：" << endl;
		cin >> name; 
		ab->arr[ab->person_num].name = name;// 把姓名存进通讯录的第一个内

		while (true)
		{
			int sex = 0;
			cout << "请输入性别：(0.女、1.男）" << endl;
			cin >> sex;
			if (sex == 0 || sex == 1)
			{
				ab->arr[ab->person_num].sex = sex;
				break;
			}
			cout << "输入错误，请重新输入！" << endl;
		}
		
		int age = 0;
		cout << "请输入年龄：" << endl;
		cin >> age;
		ab->arr[ab->person_num].age = age;

		string phone;
		cout << "请输入电话：" << endl;
		cin >> phone;
		ab->arr[ab->person_num].phone = phone;

		string address;
		cout << "请输入地址：" << endl;
		cin >> address;
		ab->arr[ab->person_num].address = address;

		ab->person_num++;
		cout << "添加成功！" << endl;
		system("pause");
		system("cls");
	}
}


// 2. 显示联系人

// 2.1 函数

void print_person(struct address_books* ab)
{
	for (int i = 0; i < ab->person_num; i++)
	{
		cout << ab->arr[i].name << "t";
		cout << (ab->arr[i].sex == 0 ? "女" : "男") << "t";
		cout << ab->arr[i].age << "t";
		cout << ab->arr[i].phone << "t";
		cout << ab->arr[i].address << "t" << endl;
	}

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

// 3. 删除联系人

// 3.1 检查有没有这个人

int check_person(struct address_books* ab, string re_name)
{
	for (int i = 0; i < ab->person_num; i++)
	{
		if (ab->arr[i].name == re_name)
		{
			return i;
		}
		else
			return -1;
	}
	
}

// 3.2 删除函数

void remove_person(struct address_books* ab)
{
	string re_name;
	cout << "请输入要删除联系人的姓名：" << endl;
	cin >> re_name;
	int re = 0;
	re = check_person(ab, re_name);  // 检查人是否存在
	if (re != -1)
	{
		for (int i = re; i < ab->person_num; i++)
		{
			ab->arr[i] = ab->arr[i + 1];    // 删除就是将下一个赋值给要删除的对象
		}
		ab->person_num--;
		cout << "删除成功！" << endl;
	}
	else
		cout << "查无此人！" << endl;

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

// 4. 查找联系人

void seek_person(struct address_books* ab)
{
	string se_name;
	cout << "请输入要查找的人的姓名：" << endl;
	cin >> se_name;
	int i = check_person(ab, se_name);
	if (i != -1)
	{
		cout << ab->arr[i].name << "t";
		cout << (ab->arr[i].sex == 0 ? "女" : "男") << "t";
		cout << ab->arr[i].age << "t";
		cout << ab->arr[i].phone << "t";
		cout << ab->arr[i].address << "t" << endl;
	}
	else
		cout << "查无此人！" << endl;

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

// 5. 修改联系人

void alter_person(struct address_books* ab)
{
	string al_name;
	cout << "请输入要修改人的姓名：" << endl;
	cin >> al_name;
	int i = check_person(ab, al_name);
	if (i != -1)
	{
		string name;						// 建立姓名字符串
		cout << "请输入姓名：" << endl;
		cin >> name;
		ab->arr[i].name = name;// 把姓名存进通讯录的第一个内

		while (true)
		{
			int sex = 0;
			cout << "请输入性别：(0.女、1.男）" << endl;
			cin >> sex;
			if (sex == 0 || sex == 1)
			{
				ab->arr[i].sex = sex;
				break;
			}
			cout << "输入错误，请重新输入！" << endl;
		}

		int age = 0;
		cout << "请输入年龄：" << endl;
		cin >> age;
		ab->arr[i].age = age;

		string phone;
		cout << "请输入电话：" << endl;
		cin >> phone;
		ab->arr[i].phone = phone;

		string address;
		cout << "请输入地址：" << endl;
		cin >> address;
		ab->arr[i].address = address;

		cout << "修改成功！" << endl;
	}
	else
	{
		cout << "查无此人！" << endl;
	}

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

// 6. 清空联系人

void clean_person(struct address_books* ab)
{
	ab->person_num = 0;
	cout << "清空成功！" << endl;

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

// 主函数

int main()
{
	int choose = 1;
	struct address_books ab; // 创建通讯录
	ab.person_num = 0;

	while (choose != 0)
	{
		show_menu();
		cout << "请输入你要进行的操作：" << endl;
		cin >> choose;

		switch (choose)
		{
		case 1:
			add_person(&ab);
			break;
		case 2:
			print_person(&ab);
			break; 
		case 3:
			remove_person(&ab);
			break;
		case 4:
			seek_person(&ab);
			break;
		case 5:
			alter_person(&ab);
			break;
		case 6:
			clean_person(&ab);
			break;
		case 0:			// 退出通讯录
			choose = exit_address_books();
			break;
		default:
			break;
		}

	}
	

	system("pause");
	return 0;
}