1~8章综合实例——通讯录管理系统（代码）

综合实例——通讯录管理系统

在黑马程序逻辑的基础上，增加了在查询联系人时，可通过不同内容进行查询，如姓名、姓别，年龄等

#include <iostream>
#include <string>
using namespace std;
#define numMax 10

struct Contact_People{
	string name;
	string gender;
	int age;
	string phone_num;
	string address;
};

struct AddressBook{
	struct Contact_People peopleArr[numMax];
	int size;
};

void ShowMenu() {
	cout << "============================" << endl;
	cout << "====	0、退出通讯录   ====" << 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 << "============================" << endl;
}

/********************************** 添加联系人函数 **********************************/
void addPerson(AddressBook* p) {
	string sex = "NULL";
	int age = NULL;
	
	cout << "\n======================== 添加联系人 ========================\n" << endl;
	if (p->size >= numMax) {
		cout << "当前通讯录已满，请删除部分数据后再添加" << endl;
	}
	else {
		cout << "请输入联系人姓名：";
		cin >> p->peopleArr[p->size].name;

		cout << "请输入联系人性别：";
		cin >> sex;
		while (sex != "男" && sex != "女"){
			cout << "非法数据，请输入正确性别（男、女）：";
			cin >> sex;
		}
		p->peopleArr[p->size].gender = sex;
		
		cout << "请输入联系人年龄：";
		cin >> age;
		while (cin.fail()) {	// cin错误状态判断，若错误则进入循环
			cin.clear();		// 清除cin错误状态
			cin.ignore(numeric_limits<streamsize>::max(), '\n');	// 清空当前行的输入
			//cin.ignore();		// 将输入流缓存区的内容忽略至EOF（数据流结尾），也就是清空cin缓存区
			cout << "非法数据，请输入正确年龄（阿拉伯数字）：";
			cin >> age;
			cout << age << endl;
		}
		while ((age < 0) || (age > 150)) {
			cout << "非法数据，请输入正确年龄（0~150）：";
			cin >> age;
		}
		p->peopleArr[p->size].age = age;

		cout << "请输入联系人号码：";
		cin >> p->peopleArr[p->size].phone_num;

		cout << "请输入联系人地址: ";
		cin >> p->peopleArr[p->size].address;

		p->size++;
		cout << "\n---------------------- 添加成功 ----------------------\n" << endl;
		system("pause");
		system("cls");	// 清屏操作
	}

}

/********************************** 显示联系人函数 **********************************/
void showPerson(AddressBook* p) {
	cout << "\n======================== 显示联系人 ========================\n\n" 
		 << "|=======================================================|\n"
		 << "| 姓名  |性别|   年龄   |  联系电话   |    家庭住址     |\n" 
		 << "|-------------------------------------------------------|" << endl;
	
	if (p->size == 0) {
		cout << "当前通讯录为空，请先添加联系人" << endl;
	}
	else {
		for (int i = 0; i < p->size; i++) {
			cout << "|" << p->peopleArr[i].name			<< "\t| "
						<< p->peopleArr[i].gender		<< " |\t"
						<< p->peopleArr[i].age			<< "\t| "
						<< p->peopleArr[i].phone_num	<< " | "
						<< p->peopleArr[i].address		<< "\t|" << endl;
			cout << "|-------------------------------------------------------|" << endl;
		}
	}
	system("pause");
	system("cls");
}

/********************************** 删除联系人函数 **********************************/
void deletPerson(AddressBook* p) {
	string name;
	bool person_exist = false;
	int person_index;

	cout << "\n======================== 删除联系人 ========================\n" << endl;
	cout << "请输入要删除联系人姓名：";
	cin >> name;
	for (int i = 0; i < p->size; i++) {
		if (p->peopleArr[i].name == name) {
			person_exist = true;
			person_index = i;
			break;
		}
	}
	if (person_exist) {
		for (int i = person_index; i < p->size-1; i++) {
			p->peopleArr[i].name      = p->peopleArr[i + 1].name;
			p->peopleArr[i].gender    = p->peopleArr[i + 1].gender;
			p->peopleArr[i].age       = p->peopleArr[i + 1].age;
			p->peopleArr[i].phone_num = p->peopleArr[i + 1].phone_num;
			p->peopleArr[i].address   = p->peopleArr[i + 1].address;
		}
		p->size--;
		cout << "------------- 删除成功 -------------";
		system("pause");
		system("cls");
	}
	else {
		cout << "------------- 联系人不存在 -------------" << endl;
	}
}

/********************************** 查找联系人函数 **********************************/
void findPerson(AddressBook* p) {
	int age;
	string name,gender,phone_num,address;
	bool person_exist = false;
	int method_select;
	int person_index[10];	// 需要容器vector，暂时先定义成最多索引10个
	int peron_index_num = 0;

	cout << "\n======================== 查找联系人 ========================\n" << endl;
	cout << "请选择联系人查找方式：\n\t 1--姓名\n\t 2--性别\n\t 3--年龄\n\t 4--电话号码\n\t 5--家庭住址" << endl;
	cin >> method_select;
	switch (method_select) {
	case 1: {	// 按“姓名”查找
		cout << "请输入联系人姓名：";
		cin >> name;
		for (int i = 0; i < p->size; i++) {
			if (p->peopleArr[i].name == name) {
				person_exist = true;
				person_index[peron_index_num++] = i;
			}
		}
	}break;
	case 2: {	// 按“性别”查找
		cout << "请输入联系人性别：";
		cin >> gender;
		for (int i = 0; i < p->size; i++) {
			if (p->peopleArr[i].gender == gender) {
				person_exist = true;
				person_index[peron_index_num++] = i;
			}
		}
	}break;
	case 3: {	// 按“年龄”查找
		cout << "请输入联系人年龄：";
		cin >> age;
		for (int i = 0; i < p->size; i++) {
			if (p->peopleArr[i].age == age) {
				person_exist = true;
				person_index[peron_index_num++] = i;
			}
		}
	}break;
	case 4: {	// 按“电话号码”查找
		cout << "请输入联系人电话号码：";
		cin >> phone_num;
		for (int i = 0; i < p->size; i++) {
			if (p->peopleArr[i].phone_num == phone_num) {
				person_exist = true;
				person_index[peron_index_num++] = i;
			}
		}
	}break;
	case 5: {	// 按“家庭住址”查找
		cout << "请输入联系人家庭住址：";
		cin >> address;
		for (int i = 0; i < p->size; i++) {
			if (p->peopleArr[i].address == address) {
				person_exist = true;
				person_index[peron_index_num++] = i;
			}
		}
	}break;
	default:
		cout << "请输入正确的数字" << endl;
	}

	if (person_exist) {
		cout << "\n共查到 " << peron_index_num << "个相关联系人\n" << endl;
		for (int i = 0; i < peron_index_num; i++) {
			cout << "姓名：" << p->peopleArr[person_index[i]].name << "\t"
				<< "性别：" << p->peopleArr[person_index[i]].gender << "\t"
				<< "年龄：" << p->peopleArr[person_index[i]].age << "\t"
				<< "电话号码：" << p->peopleArr[person_index[i]].phone_num << "\t"
				<< "家庭住址：" << p->peopleArr[person_index[i]].address << endl;
		}
	}
	else{
		cout << "--------------------抱歉，未查到相关联系人----------------------" << endl;
	}
	system("pause");
	system("cls");
}

/********************************** 修改联系人函数 **********************************/
void modifyPerson(AddressBook* p) {
	string name;
	bool person_exist = false;
	int person_index;

	cout << "\n======================== 修改联系人 ========================\n" << endl;
	cout << "请输入想要修改的联系人姓名：";
	cin >> name;
	for (int i = 0; i < p->size; i++) {
		if (p->peopleArr[i].name == name) {
			person_exist = true;
			person_index = i;
			break;
		}
	}
	if (person_exist) {
		cout << "请输入修改后的姓名：";
		cin >> p->peopleArr[person_index].name;
		cout << "请输入修改后的性别：";
		cin >> p->peopleArr[person_index].gender;
		cout << "请输入修改后的年龄：";
		cin >> p->peopleArr[person_index].age;
		cout << "请输入修改后的电话号码：";
		cin >> p->peopleArr[person_index].phone_num;
		cout << "请输入修改后的家庭住址：";
		cin >> p->peopleArr[person_index].address;
		
		cout << "---------------------- 修改成功 ---------------------" << endl;
	}
	else {
		cout << "-------------------- 抱歉，未查到相关联系人 ----------------------" << endl;
	}
	system("pause");
	system("cls");
}

/********************************** 清空联系人函数 **********************************/
void clearAll(AddressBook* p) {
	bool clearall = false;
	cout << "是否确认清空：0--否 1--是" << endl;
	cin >> clearall;
	if (clearall) {
		p->size = 0;
		cout << "------------------------- 通讯录已清空 ---------------------------" << endl;
	}
	system("pause");
	system("cls");
}


int main() {
	int select;
	AddressBook addressbook;
	addressbook.size = 0;
	
	while (true) {
		ShowMenu();
		cin >> select;

		switch (select)
		{
		case 0:	// 退出通讯录
		{
			cout << "欢迎下次使用";
			exit(0);
		}	break;
		case 1:	// 添加联系人
			addPerson(&addressbook);
			break;
		case 2:	// 显示联系人
			showPerson(&addressbook);
			break;
		case 3:	// 删除联系人
			deletPerson(&addressbook);
			break;
		case 4:	// 查找联系人
			findPerson(&addressbook);
			break;
		case 5:	// 修改联系人
			modifyPerson(&addressbook);
			break;
		case 6:	// 清空通讯录
			clearAll(&addressbook);
			break;
		default:
			cout << "输入格式错误！！请注意输入规范" << endl;
		}
	}
	
	system("pause");
	return 0;
}