为了回答您的问题，我将提供一个简化版的疫苗预约系统的核心功能示例代码。由于完整代码超出了问答的字数限制，我将提供Java、PHP、Node.js和Python中的一个简单例子。
Java示例:
public class VaccinationAppointment {
private String name;
private String email;
private String date;
public VaccinationAppointment(String name, String email, String date) {
this.name = name;
this.email = email;
this.date = date;
}
public void bookAppointment() {
System.out.println("Appointment booked for " + name + " on " + date);
// 实际应用中，这里会与数据库交互保存预约信息
}
}PHP示例:
<?php
class VaccinationAppointment {
public $name;
public $email;
public $date;
public function __construct($name, $email, $date) {
$this->name = $name;
$this->email = $email;
$this->date = $date;
}
public function bookAppointment() {
echo "Appointment booked for " . $this->name . " on " . $this->date . "\n";
// 实际应用中，这里会与数据库交互保存预约信息
}
}Node.js示例:
class VaccinationAppointment {
constructor(name, email, date) {
this.name = name;
this.email = email;
this.date = date;
}
bookAppointment() {
console.log(`Appointment booked for ${this.name} on ${this.date}`);
// 实际应用中，这里会与数据库交互保存预约信息
}
}Python示例:
class VaccinationAppointment:
def __init__(self, name, email, date):
self.name = name
self.email = email
self.date = date
def book_appointment(self):
print(f"Appointment booked for {self.name} on {self.date}")
# 实际应用中，这里会与数据库交互保存预约信息以上代码展示了创建疫苗预约系统的一个简单类，包含预约的基本信息和预约的功能。在实际应用中，它们将与数据库系统集成，以保存和管理用户的预约信息。这些代码片段应该足以让学生理解基本的面向对象编程概念，并且为他们在毕设中构建实际系统提供一个良好的开始。