C++项目（通讯录管理系统）

系统需求
 通讯录是一个可以记录亲人、好友信息的工具。

 本教程主要利用C++来实现一个通讯录管理系统

 系统中需要实现的功能如下:
·添加联系人:向通讯录中添加新人，信息包括(姓名、性别、年龄、联系电话、家庭住址)最多   记录1000人

·显示联系人:显示通讯录中所有联系人信息
·删除联系人:按照姓名进行删除指定联系人

·查找联系人:按照姓名查看指定联系人信息

·修改联系人:按照姓名重新修改指定联系人

·清空联系人:清空通讯录中所有信息
·退出通讯录:退出当前使用的通讯录

 1.菜单功能

#include<iostream>
using namespace std;

//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() {
	showMenu();
	system("pause");
	return 0;
}

2.退出功能

int main() {
	int select = 0;

	while (1) {
		//菜单调用
		showMenu();

		cin >> select;

		switch (select)
		{
		case 1: //添加联系人
			break;
		case 2: //显示联系人
			break;
		case 3: //删除联系人
			break;
		case 4: //查找联系人
			break;
		case 5: //修改联系人
			break;
		case 6: //清空联系人
			break;
		case 0: //退出通讯录
			cout << "欢迎下次使用，再见。" << endl;
			system("pause");
			return 0;
			break;
		default:
			break;
		}
	}
	system("pause");
	return 0;
}

3.添加联系人

int main() {
	//创建通讯录结构体变量
	Addressbooks abs;
	//初始化通讯录当前个数
	abs.m_Size = 0;

case 1: //添加联系人
	addPerson(&abs);
	break;

#include<iostream>
using namespace std;
#include<string>
#define MAX 1000

//设计联系人结构体
struct Person {
	string m_Name;
	int m_Sex;
	int m_Age;
	string m_Phone;
	string m_Addr;
};

//设计通讯录结构体
struct Addressbooks {
	struct Person Array[MAX];
	int m_Size;
};

//1.添加联系人
void addPerson(Addressbooks* abs) {
	// 判断通讯录是否已满
	if (abs->m_Size == MAX) {
		cout << "通讯录已满，无法添加联系人" << endl;
		return;
	}
	else {
		//添加具体联系人
		//姓名
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->Array[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 (1) {
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->Array[abs->m_Size].m_Sex = sex;
				break;
			}
			else {
				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->Array[abs->m_Size].m_Age = age;

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

		//住址
		cout << "请输入住址：" << endl;
		string address;
		cin >> address;
		abs->Array[abs->m_Size].m_Addr = address;

		//更新通讯录人数
		abs->m_Size++;

		cout << "添加成功" << endl;

		system("pause");//输入任意键继续
		system("cls"); //清屏

4.显示联系人 

case 2: //显示联系人
	showPerson(&abs);
	break;

//2.显示联系人
void showPerson(Addressbooks *abs) {
	//判断通讯录是否为空
	if (abs->m_Size == 0) {
		cout << "当前通讯录为空" << endl;
	}
	//不空，则显示联系人信息
	else {
		for (int i = 0; i < abs->m_Size; i++) {
			cout << "姓名：" << abs->Array[i].m_Name << "\t";
			cout << "性别：" << (abs->Array[i].m_Sex == 1? "男":"女") << "\t";
			cout << "年龄：" << abs->Array[i].m_Age << "\t";
			cout << "电话：" << abs->Array[i].m_Phone << "\t";
			cout << "地址：" << abs->Array[i].m_Addr << "\t" << endl;
		}
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

 5.删除联系人

case 3: //删除联系人
	deletePerson(&abs);
	break;

//检测联系人是否存在
int isExist(Addressbooks* abs, string name) {
	for (int i = 0; i < abs->m_Size; i++) {
		//找到用户
		if (abs->Array[i].m_Name == name) {
			return i;
		}
	}
	//没有找到用户
	return -1;
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

//3.删除联系人
void deletePerson(Addressbooks* abs) {
	cout << "请输入您要删除的联系人" << endl;
	string name;
	cin >> name;
	//ret == -1 未查到此人
	//ret != -1 查到此人
	int ret = isExist(abs, name);

	if (ret != -1) {
		//删除操作
		for (int i = ret; i < abs->m_Size; i++) {
			//进行前移
			abs->Array[i] = abs->Array[i + 1];
		}
		//更新通讯录中的人数
		abs->m_Size--;
	}
	else {
		cout << "没有查询结果" << endl;
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

 6.查找联系人

case 4: //查找联系人
	findPerson(&abs);
	break;

//4.查找联系人
void findPerson(Addressbooks* 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 << abs->Array[ret].m_Name << "\t";
		cout << abs->Array[ret].m_Sex << "\t";
		cout << abs->Array[ret].m_Age << "\t";
		cout << abs->Array[ret].m_Phone << "\t";
		cout << abs->Array[ret].m_Addr << "\t" << endl;
		}	
	else {
		cout << "对不起，没有此联系人" << endl;
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

7.修改联系人

case 5: //修改联系人
	modifyPerson(&abs);
	break;

//5.修改联系人
void modifyPerson(Addressbooks* 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) {
		//姓名
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->Array[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 (1) {
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->Array[ret].m_Sex = sex;
				break;
			}
			else {
				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->Array[ret].m_Age = age;

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

		//住址
		cout << "请输入住址：" << endl;
		string address;
		cin >> address;
		abs->Array[ret].m_Addr = address;
		cout << "修改成功" << endl;
	}
	else {
		cout << "查无此人" << endl;
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

 8.清空联系人

case 6: //清空联系人
	clearPerson(&abs);
	break;

//6.清空联系人
void clearPerson(Addressbooks* abs) {
	abs->m_Size = 0;
	cout << "通讯录联系人已经清空" << endl;
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

 全部代码

#include<iostream>
using namespace std;
#include<string>
#define MAX 1000

//设计联系人结构体
struct Person {
	string m_Name;
	int m_Sex;
	int m_Age;
	string m_Phone;
	string m_Addr;
};

//设计通讯录结构体
struct Addressbooks {
	struct Person Array[MAX];
	int m_Size;
};

//1.添加联系人
void addPerson(Addressbooks* abs) {
	// 判断通讯录是否已满
	if (abs->m_Size == MAX) {
		cout << "通讯录已满，无法添加联系人" << endl;
		return;
	}
	else {
		//添加具体联系人
		//姓名
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->Array[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 (1) {
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->Array[abs->m_Size].m_Sex = sex;
				break;
			}
			else {
				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->Array[abs->m_Size].m_Age = age;

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

		//住址
		cout << "请输入住址：" << endl;
		string address;
		cin >> address;
		abs->Array[abs->m_Size].m_Addr = address;

		//更新通讯录人数
		abs->m_Size++;

		cout << "添加成功" << endl;

		system("pause");//输入任意键继续
		system("cls"); //清屏
	}
}

//2.显示联系人
void showPerson(Addressbooks *abs) {
	//判断通讯录是否为空
	if (abs->m_Size == 0) {
		cout << "当前通讯录为空" << endl;
	}
	//不空，则显示联系人信息
	else {
		for (int i = 0; i < abs->m_Size; i++) {
			cout << "姓名：" << abs->Array[i].m_Name << "\t";
			cout << "性别：" << (abs->Array[i].m_Sex == 1? "男":"女") << "\t";
			cout << "年龄：" << abs->Array[i].m_Age << "\t";
			cout << "电话：" << abs->Array[i].m_Phone << "\t";
			cout << "地址：" << abs->Array[i].m_Addr << "\t" << endl;
		}
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

//检测联系人是否存在
int isExist(Addressbooks* abs, string name) {
	for (int i = 0; i < abs->m_Size; i++) {
		//找到用户
		if (abs->Array[i].m_Name == name) {
			return i; //返回的是数组中此联系人的下标
		}
	}
	//没有找到用户
	return -1;
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

//3.删除联系人
void deletePerson(Addressbooks* abs) {
	cout << "请输入您要删除的联系人" << endl;
	string name;
	cin >> name;
	//ret == -1 未查到此人
	//ret != -1 查到此人
	int ret = isExist(abs, name);

	if (ret != -1) {
		//删除操作
		for (int i = ret; i < abs->m_Size; i++) {
			//进行前移
			abs->Array[i] = abs->Array[i + 1];
		}
		//更新通讯录中的人数
		abs->m_Size--;
	}
	else {
		cout << "没有查询结果" << endl;
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

//4.查找联系人
void findPerson(Addressbooks* 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 << abs->Array[ret].m_Name << "\t";
		cout << abs->Array[ret].m_Sex << "\t";
		cout << abs->Array[ret].m_Age << "\t";
		cout << abs->Array[ret].m_Phone << "\t";
		cout << abs->Array[ret].m_Addr << "\t" << endl;
		}	
	else {
		cout << "对不起，没有此联系人" << endl;
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}
  
//5.修改联系人
void modifyPerson(Addressbooks* 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) {
		//姓名
		string name;
		cout << "请输入姓名：" << endl;
		cin >> name;
		abs->Array[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 (1) {
			cin >> sex;
			if (sex == 1 || sex == 2) {
				abs->Array[ret].m_Sex = sex;
				break;
			}
			else {
				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->Array[ret].m_Age = age;

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

		//住址
		cout << "请输入住址：" << endl;
		string address;
		cin >> address;
		abs->Array[ret].m_Addr = address;
		cout << "修改成功" << endl;
	}
	else {
		cout << "查无此人" << endl;
	}
	system("pause");//输入任意键继续
	system("cls"); //清屏
}

//6.清空联系人
void clearPerson(Addressbooks* abs) {
	abs->m_Size = 0;
	cout << "通讯录联系人已经清空" << endl;
	system("pause");//输入任意键继续
	system("cls"); //清屏
}


//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;
	//初始化通讯录当前个数
	abs.m_Size = 0;
	//创建用户选择输入的变量
	int select = 0;
	while (1) {
		//菜单调用
		showMenu();

		cin >> select;

		switch (select)
		{
		case 1: //添加联系人
			addPerson(&abs);
			break;
		case 2: //显示联系人
			showPerson(&abs);
			break;
		case 3: //删除联系人
			deletePerson(&abs);
			break;
		case 4: //查找联系人
			findPerson(&abs);
			break;
		case 5: //修改联系人
			modifyPerson(&abs);
			break;
		case 6: //清空联系人
			clearPerson(&abs);
			break;
		case 0: //退出通讯录
			cout << "欢迎下次使用，再见。" << endl;
			system("pause");
			return 0;
			break;
		default:
			break;
		}
	}

	
	system("pause");
	return 0;
}