怎样开发通讯录管理程序 vector容器存储联系人信息

vector

std::vector

Contact

vector<Contact>

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;

// 联系人类
class Contact {
public:
    string name;
    string phone;
    string email;

    // 构造函数
    Contact(const string& n, const string& p, const string& e)
        : name(n), phone(p), email(e) {}

    // 显示联系人信息
    void display() const {
        cout << "姓名: " << name
             << " | 电话: " << phone
             << " | 邮箱: " << email << endl;
    }
};

// 通讯录管理类
class AddressBook {
private:
    vector<Contact> contacts;

public:
    // 添加联系人
    void addContact(const string& name, const string& phone, const string& email) {
        contacts.emplace_back(name, phone, email);
        cout << "联系人 " << name << " 已添加。\n";
    }

    // 删除联系人（按姓名）
    void deleteContact(const string& name) {
        auto it = find_if(contacts.begin(), contacts.end(),
                          [&name](const Contact& c) { return c.name == name; });
        if (it != contacts.end()) {
            contacts.erase(it);
            cout << "联系人 " << name << " 已删除。\n";
        } else {
            cout << "未找到联系人: " << name << endl;
        }
    }

    // 查找联系人
    void searchContact(const string& name) const {
        auto it = find_if(contacts.begin(), contacts.end(),
                          [&name](const Contact& c) { return c.name == name; });
        if (it != contacts.end()) {
            cout << "找到联系人:\n";
            it->display();
        } else {
            cout << "未找到联系人: " << name << endl;
        }
    }

    // 修改联系人信息
    void updateContact(const string& name, const string& newPhone, const string& newEmail) {
        auto it = find_if(contacts.begin(), contacts.end(),
                          [&name](const Contact& c) { return c.name == name; });
        if (it != contacts.end()) {
            it->phone = newPhone;
            it->email = newEmail;
            cout << "联系人 " << name << " 信息已更新。\n";
        } else {
            cout << "未找到联系人: " << name << endl;
        }
    }

    // 显示所有联系人
    void displayAll() const {
        if (contacts.empty()) {
            cout << "通讯录为空。\n";
            return;
        }
        cout << "\n=== 所有联系人 ===\n";
        for (const auto& contact : contacts) {
            contact.display();
        }
        cout << "==================\n";
    }
};

int main() {
    AddressBook book;
    int choice;
    string name, phone, email;

    while (true) {
        cout << "\n--- 通讯录管理系统 ---\n";
        cout << "1. 添加联系人\n";
        cout << "2. 删除联系人\n";
        cout << "3. 查找联系人\n";
        cout << "4. 修改联系人\n";
        cout << "5. 显示所有联系人\n";
        cout << "6. 退出\n";
        cout << "请选择操作: ";
        cin >> choice;

        switch (choice) {
            case 1:
                cout << "姓名: ";
                cin >> name;
                cout << "电话: ";
                cin >> phone;
                cout << "邮箱: ";
                cin >> email;
                book.addContact(name, phone, email);
                break;

            case 2:
                cout << "输入要删除的姓名: ";
                cin >> name;
                book.deleteContact(name);
                break;

            case 3:
                cout << "输入要查找的姓名: ";
                cin >> name;
                book.searchContact(name);
                break;

            case 4:
                cout << "输入要修改的姓名: ";
                cin >> name;
                cout << "新电话: ";
                cin >> phone;
                cout << "新邮箱: ";
                cin >> email;
                book.updateContact(name, phone, email);
                break;

            case 5:
                book.displayAll();
                break;

            case 6:
                cout << "再见！\n";
                return 0;

            default:
                cout << "无效选择，请重试。\n";
        }
    }

    return 0;
}