C++項目實踐（通訊錄管理系統）

1. 需求

C++項目實踐（通訊錄管理系統）

2. 添加聯系人

2.1 建立結構體

//建立聯系人結構體
struct Person {
	string m_Name;
	int m_Sex; //1男,2女
	int m_Age;
	string m_Phone;
	string m_Addr;
};

//建立通訊錄結構體
struct Addressbooks
{
	struct Person personArray[MAX];
	int m_Size;
};

2.2 實作菜單界面

// *******封裝函數顯示菜單界面*****************
void showMenu() {
	cout << "*************************" << endl;
	cout << "***** 1、添加聯系人 *****" << endl;
	cout << "***** 2、顯示聯系人 *****" << endl;
	cout << "***** 3、删除聯系人 *****" << endl;
	cout << "***** 4、查找聯系人 *****" << endl;
	cout << "***** 5、修改聯系人 *****" << endl;
	cout << "***** 6、清空聯系人 *****" << endl;
	cout << "***** 0、退出通訊錄 *****" << endl;
	cout << "*************************" << endl;
}

2.3 實作添加聯系人操作

//**************添加聯系人***************
void addPerson(Addressbooks *abs) {
	if (abs->m_Size == MAX)	//判斷是否能添加
	{
		cout << "通訊錄已滿，無法添加" << endl;
		return;
	}
	else
	{
		//姓名
		string name;
		cout << "請輸入姓名：" << endl;
		cin >> name;
		abs->personArray[abs->m_Size].m_Name = name;

		//性别
		cout << "請輸入性别：" << 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 << "輸入有誤，請重新輸入！" << endl;
		}

		//年齡
		cout << "請輸入年齡：" << endl;
		int age = 0;
		while (true){
			cin >> age;
			if (age > 0 && age < 100) {
				abs->personArray[abs->m_Size].m_Age = age;
				break;
			}
			cout << "輸入有誤，請重新輸入！" << endl;
		}

		//電話
		cout << "請輸入聯系電話：" << endl;
		string phone;
		cin >> phone;
		abs->personArray[abs->m_Size].m_Phone = phone;

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

		//更新人數
		abs->m_Size++;

		cout << "添加成功" << endl;

		system("pause"); //請按任意鍵繼續
		system("cls");	//清屏
	}
}

2.4 顯示聯系人功能

//顯示聯系人
void showPerson(Addressbooks *abs)
{
	if (abs->m_Size == 0)
	{
		cout << "通訊錄中沒有任何聯系人" << 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") <<
				"	年齡：" << abs->personArray[i].m_Age <<
				"	電話：" << abs->personArray[i].m_Phone <<
				"	住址：" << abs->personArray[i].m_Addr << endl;
		}
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

2.5 檢測聯系人是否存在

該函數主要是服務于查找函數、删除函數和修改函數

//檢測聯系人是否存在
int isExist(Addressbooks *abs , string name)
{
	for (int i = 0; i < abs->m_Size; i++)
	{
		if (abs->personArray[i].m_Name == name)
		{
			return i; //找到了，傳回下标
		}
	}
	return -1;
}

2.6 删除聯系人

//删除聯系人
void deletePerson(Addressbooks *abs)
{
	cout << "請輸入删除聯系人的姓名" << endl;
	string name;
	cin >> name;
	int result = isExist(abs, name);
	if (result != -1)
	{
		for (int i = result; i < abs->m_Size; i++)
		{
			abs->personArray[i] = abs->personArray[i + 1];
		}
		abs->m_Size--;
		cout << "删除成功" << endl;
	}
	else
	{
		cout << "查無此人" << endl;
	}
	
	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

2.7 查找聯系人

//查找聯系人
void selectPerson(Addressbooks *abs)
{
	cout << "請輸入您要查找的聯系人" << endl;
	string name;
	cin >> name;

	int res = isExist(abs,name);
	if (res != -1)
	{
		cout << "查找成功！" << endl;
		cout << "姓名：" << abs->personArray[res].m_Name <<
			"\t性别：" << (abs->personArray[res].m_Sex == 1 ? "男" : "女") <<
			"\t年齡：" << abs->personArray[res].m_Age <<
			"\t電話：" << abs->personArray[res].m_Phone <<
			"\t住址：" << abs->personArray[res].m_Addr << endl;
	}
	else
	{
		cout << "查無此人" << endl;
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

2.8 修改聯系人

//修改聯系人資訊
void modifyPerson(Addressbooks *abs)
{
	cout << "請輸入您要修改的聯系人" << endl;
	string name;
	cin >> name;

	int res = isExist(abs , name);

	if (res != -1)
	{	
		//姓名
		string r_name;
		cout <<"請輸入姓名：" << endl;
		cin >> r_name;
		abs->personArray[res].m_Name = r_name;

		//性别
		cout << "請輸入性别：" << endl;
		cout << "1---男" << endl;
		cout << "2---女" << endl;
		int r_sex = 0;
		while (true) {
			cin >> r_sex;
			if (r_sex == 1 || r_sex == 2)
			{
				abs->personArray[res].m_Sex = r_sex;
				break;
			}
			cout << "輸入有誤，請重新輸入！" << endl;
		}

		//年齡
		cout << "請輸入年齡：" << endl;
		int r_age = 0;
		while (true) {
			cin >> r_age;
			if (r_age > 0 && r_age < 100) {
				abs->personArray[res].m_Age = r_age;
				break;
			}
			cout << "輸入有誤，請重新輸入！" << endl;
		}

		//聯系電話
		cout << "請輸入聯系電話：" << endl;
		string r_phone;
		cin >> r_phone;
		abs->personArray[res].m_Phone = r_phone;

		//住址
		cout << "請輸入家庭住址：" << endl;
		string r_address;
		cin >> r_address;
		abs->personArray[res].m_Addr = r_address;

		cout << "修改成功" << endl;
	}
	else
	{
		cout << "沒有此人資訊" << endl;
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

2.9 清空所有聯系人

隻做邏輯上的删除，及把通訊錄裡記錄聯系人個數的m_Size初始化為0

//清空所有聯系人 (隻做邏輯上的清空)
void deleteAllPerson(Addressbooks *abs)
{
	if (abs->m_Size == 0)
	{
		cout << "通訊錄無任何資訊，無需清空" << endl;
	}
	else {
		abs->m_Size = 0;
		cout << "通訊錄已清空" << endl;
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

整個項目

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

struct Person {
	string m_Name;
	int m_Sex; //1男2女
	int m_Age;
	string m_Phone;
	string m_Addr;
};

struct Addressbooks
{
	struct Person personArray[MAX];
	int m_Size;
};

void showMenu();
void addPerson(Addressbooks *abs);
void showPerson(Addressbooks *abs);
void deletePerson(Addressbooks *abs);
int isExist(Addressbooks *abs, string name);
void selectPerson(Addressbooks *abs);
void modifyPerson(Addressbooks *abs);
void deleteAllPerson(Addressbooks *abs);

int main() {
	Addressbooks abs;

	//初始化
	abs.m_Size = 0;
	int select = 0; //建立使用者選擇輸入的變量

	while (1) {
		//顯示菜單界面
		showMenu();
		cin >> select;

		switch (select)
		{
		case 1:		//1、添加聯系人
			addPerson(&abs);
			break;
		case 2:		//2、顯示聯系人
			showPerson(&abs);
			break;
		case 3:		//3、删除聯系人
			deletePerson(&abs);
			break;
		case 4:		// 4、查找聯系人
			selectPerson(&abs);
			break;
		case 5:		//5、修改聯系人
			modifyPerson(&abs);
			break;
		case 6:		//6、清空聯系人
			deleteAllPerson(&abs);
			break;
		case 0:		//0、退出通訊錄
			cout << "歡迎下次使用" << endl;
			system("pause");
			return 0;
			break;
		default:
			cout << "無此功能，請重新輸入" << endl;
			system("pause");
			system("cls");
			break;
		}
	}
}

// *******封裝函數顯示菜單界面*****************
void showMenu() {
	cout << "*************************" << endl;
	cout << "***** 1、添加聯系人 *****" << endl;
	cout << "***** 2、顯示聯系人 *****" << endl;
	cout << "***** 3、删除聯系人 *****" << endl;
	cout << "***** 4、查找聯系人 *****" << endl;
	cout << "***** 5、修改聯系人 *****" << endl;
	cout << "***** 6、清空聯系人 *****" << endl;
	cout << "***** 0、退出通訊錄 *****" << endl;
	cout << "*************************" << endl;
}

//**************添加聯系人***************
void addPerson(Addressbooks *abs) {
	if (abs->m_Size == MAX)
	{
		cout << "通訊錄已滿，無法添加" << endl;
		return;
	}
	else
	{
		//姓名
		string name;
		cout << "請輸入姓名：" << endl;
		cin >> name;
		abs->personArray[abs->m_Size].m_Name = name;

		//性别
		cout << "請輸入性别：" << 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 << "輸入有誤，請重新輸入！" << endl;
		}

		//年齡
		cout << "請輸入年齡：" << endl;
		int age = 0;
		while (true){
			cin >> age;
			if (age > 0 && age < 100) {
				abs->personArray[abs->m_Size].m_Age = age;
				break;
			}
			cout << "輸入有誤，請重新輸入！" << endl;
		}

		//電話
		cout << "請輸入聯系電話：" << endl;
		string phone;
		cin >> phone;
		abs->personArray[abs->m_Size].m_Phone = phone;

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

		//更新人數
		abs->m_Size++;

		cout << "添加成功" << endl;

		system("pause"); //請按任意鍵繼續
		system("cls");	//清屏
	}
}

//顯示聯系人
void showPerson(Addressbooks *abs)
{
	if (abs->m_Size == 0)
	{
		cout << "通訊錄中沒有任何聯系人" << 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") <<
				"	年齡：" << abs->personArray[i].m_Age <<
				"	電話：" << abs->personArray[i].m_Phone <<
				"	住址：" << abs->personArray[i].m_Addr << endl;
		}
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

//檢測聯系人是否存在
int isExist(Addressbooks *abs , string name)
{
	for (int i = 0; i < abs->m_Size; i++)
	{
		if (abs->personArray[i].m_Name == name)
		{
			return i; //找到了，傳回下标
		}
	}
	return -1;
}

//删除聯系人
void deletePerson(Addressbooks *abs)
{
	cout << "請輸入删除聯系人的姓名" << endl;
	string name;
	cin >> name;
	int result = isExist(abs, name);
	if (result != -1)
	{
		for (int i = result; i < abs->m_Size; i++)
		{
			abs->personArray[i] = abs->personArray[i + 1];
		}
		abs->m_Size--;
		cout << "删除成功" << endl;
	}
	else
	{
		cout << "查無此人" << endl;
	}
	
	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

//查找聯系人
void selectPerson(Addressbooks *abs)
{
	cout << "請輸入您要查找的聯系人" << endl;
	string name;
	cin >> name;

	int res = isExist(abs,name);
	if (res != -1)
	{
		cout << "查找成功！" << endl;
		cout << "姓名：" << abs->personArray[res].m_Name <<
			"\t性别：" << (abs->personArray[res].m_Sex == 1 ? "男" : "女") <<
			"\t年齡：" << abs->personArray[res].m_Age <<
			"\t電話：" << abs->personArray[res].m_Phone <<
			"\t住址：" << abs->personArray[res].m_Addr << endl;
	}
	else
	{
		cout << "查無此人" << endl;
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

//修改聯系人資訊
void modifyPerson(Addressbooks *abs)
{
	cout << "請輸入您要修改的聯系人" << endl;
	string name;
	cin >> name;

	int res = isExist(abs , name);

	if (res != -1)
	{	
		//姓名
		string r_name;
		cout <<"請輸入姓名：" << endl;
		cin >> r_name;
		abs->personArray[res].m_Name = r_name;

		//性别
		cout << "請輸入性别：" << endl;
		cout << "1---男" << endl;
		cout << "2---女" << endl;
		int r_sex = 0;
		while (true) {
			cin >> r_sex;
			if (r_sex == 1 || r_sex == 2)
			{
				abs->personArray[res].m_Sex = r_sex;
				break;
			}
			cout << "輸入有誤，請重新輸入！" << endl;
		}

		//年齡
		cout << "請輸入年齡：" << endl;
		int r_age = 0;
		while (true) {
			cin >> r_age;
			if (r_age > 0 && r_age < 100) {
				abs->personArray[res].m_Age = r_age;
				break;
			}
			cout << "輸入有誤，請重新輸入！" << endl;
		}

		//聯系電話
		cout << "請輸入聯系電話：" << endl;
		string r_phone;
		cin >> r_phone;
		abs->personArray[res].m_Phone = r_phone;

		//住址
		cout << "請輸入家庭住址：" << endl;
		string r_address;
		cin >> r_address;
		abs->personArray[res].m_Addr = r_address;

		cout << "修改成功" << endl;
	}
	else
	{
		cout << "沒有此人資訊" << endl;
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

//清空所有聯系人 (隻做邏輯上的清空)
void deleteAllPerson(Addressbooks *abs)
{
	if (abs->m_Size == 0)
	{
		cout << "通訊錄無任何資訊，無需清空" << endl;
	}
	else {
		abs->m_Size = 0;
		cout << "通訊錄已清空" << endl;
	}

	system("pause"); //請按任意鍵繼續
	system("cls");	//清屏
}

C++項目實踐（通訊錄管理系統）

1. 需求

2. 添加聯系人

2.1 建立結構體

2.2 實作菜單界面

2.3 實作添加聯系人操作

2.4 顯示聯系人功能

2.5 檢測聯系人是否存在

2.6 删除聯系人

2.7 查找聯系人

2.8 修改聯系人

2.9 清空所有聯系人

整個項目

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