在父类的方法中创建子类的一些实例
我有以下类：
abstract class Transport{
protected String name;
protected Transport(String name){
this.name=name;
}
protected void DoSomething(){
//Creating some instances of the type of the current instance
}
}
class Bike: Transport {
public Bike(String name): base(name){
}
}
class Bus: Transport {
public Bus(String name): base(name){
}
}
我想要做的是在 Transport 类的 DoSomething 方法中创建当前实例类型的一些实例。
我该怎么办呢？
我可以创建一个静态工厂方法，它接受我想要创建的子类的名称，然后使用 this.GetType 在 。DoSomething 方法中将当前实例的类名称传递给它().名称
但这是最好的方法吗？
非常感谢大家。
I have the following classes:
abstract class Transport{
protected String name;
protected Transport(String name){
this.name=name;
}
protected void DoSomething(){
//Creating some instances of the type of the current instance
}
}
class Bike: Transport {
public Bike(String name): base(name){
}
}
class Bus: Transport {
public Bus(String name): base(name){
}
}
What I would like to do is to create some instances of the type of the current instance inside the DoSomething method of the Transport class.
How would I go about it?
I can create a static factory method that accepts the name of the child class I would like to create and then pass it the class name of the current instance inside the DoSomething method by using this.GetType().Name.
But is this the best way?
Many thanks to you all.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
您可以在基类中制作
受保护的抽象传输创建（字符串名称）方法，并在派生的类中覆盖它以调用其构造函数。You can make a
protected abstract Transport CreateNew(string name)method in the base class, and override it in the derived classes to call their constructors.您愿意使用反射吗？
以上适用于您的具体情况。请注意使用 [0] 来获取第一个构造函数。对于您问题中的小例子来说，这不是问题。您可以考虑在 System.Type 上使用其他重载来获取您想要的特定构造函数。
Are you open to using reflection?
The above works in your specific case. Note the use of [0] to get the first constructor. This is a non-issue for the trivial example in your question. You might consider using other overloads on System.Type to get the specific constructor that you want.