在for循环中使用客户类对象访问类的std::vector

#include <iostream>
#include <vector>

class Customer {
private:
    std::string name;
public:
    Customer(std::string name) : name(name) {}
    std::string getName() const { return name; }
};

class Store {
private:
    std::vector<Customer> customers;
public:
    void addCustomer(const Customer& customer) {
        customers.push_back(customer);
    }
    void printCustomers() {
        for (const Customer& customer : customers) {
            std::cout << customer.getName() << std::endl;
        }
    }
};

int main() {
    Customer customer1("John");
    Customer customer2("Mary");
    Customer customer3("David");

    Store store;
    store.addCustomer(customer1);
    store.addCustomer(customer2);
    store.addCustomer(customer3);

    store.printCustomers();

    return 0;
}