指定通用返回类型的 C# 接口
声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow
原文地址: http://stackoverflow.com/questions/10147292/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
C# interface specfying a generic return type
提问by River
I have something like:
我有类似的东西:
public interface IExample
{
int GetInteger()
T GetAnything(); //How do I define a function with a generic return type???
^^^^^
}
Is this possible???
这可能吗???
采纳答案by Femaref
If the whole interface should be generic:
如果整个界面应该是通用的:
public interface IExample<T>
{
int GetInteger();
T GetAnything();
}
If only the method needs to be generic:
如果只有方法需要是通用的:
public interface IExample
{
int GetInteger();
T GetAnything<T>();
}
回答by River
public interface IExample<T>
{
int GetInteger()
T GetAnything();
}
Tadaa :) !
多多 :) !
Or alternatively, you can just return System.Object and cast it to whatever you want.
或者,您可以只返回 System.Object 并将其转换为您想要的任何内容。
回答by shankar_pratap
If you dont want the entire interface(IExample) to be generic, then you can do this too
如果你不希望整个界面(IExample)是通用的,那么你也可以这样做
public interface IExample
{
int GetInteger();
T GetAnything<T>();
}

