C＃返回不同类型的？ [英] C# Return Different Types?

问题描述

我得到了这样的事情：

public [What Here?] GetAnything()
{
     Hello hello = new Hello();
     Computer computer = new Computer();
     Radio radio = new Radio();

     return radio; or return computer; or return hello //should be possible?!      
}

我有一个方法，这方法返回值的我有时不同类型（类）。

I have a Method and this method returns me sometimes different Types of Values (classes).

我怎样才能做到这一点反正ofcourse后来与变量工作，b.e radio.Play（）;到目前为止？

How can I do this anyway and ofcourse later to work with the variables, b.e radio.Play(); and so far?

我需要使用泛型？怎么样？

Do I need to use generics? How?

推荐答案

如果没有公共基类或接口，那么公共对象GetAnything（） {...} - 但它通常将是优选具有某种抽象诸如通用接口。例如，如果您好，电脑和无线所有实施的IFoo ，那么它可能会返回一个的IFoo 。

If there is no common base-type or interface, then public object GetAnything() {...} - but it would usually be preferable to have some kind of abstraction such as a common interface. For example if Hello, Computer and Radio all implemented IFoo, then it could return an IFoo.

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