英文:
Can you explain Go Interfaces?
问题
我不太理解整个类型+接口模型（它取代了其他语言中的类）。如果你能简单地解释一下它们的含义，我会非常感激。
英文:
I dont get the whole types + Interfaces model(that replaces classes in other languages). If theres a simple way you could explain what they are about, it will be really appreciated.
答案1
得分: 5
这是一个相当好的概述：
http://research.swtch.com/2009/12/go-data-structures-interfaces.html
英文:
This is a pretty good overview:
http://research.swtch.com/2009/12/go-data-structures-interfaces.html
答案2
得分: 4
Go接口是静态检查的鸭子类型。
C++中的纯虚类或Java中的接口的区别在于，你不是在实现接口的类上声明接口，而是在接收接口的方法上声明接口。
例如，我可以创建一个带有Read和Write方法的接口，并将其命名为ThingsDustinReadsAndWrites，然后有一个名为doReadsAndWrites(rr ThingsDustinReadsAndWrites的函数。这个函数可以接收一个内置的http.ClientConn，它从未听说过我的接口，但是它实现了这个接口，因为它恰好有这些方法。
英文:
Go interfaces are statically checked duck typing.
The difference between pure virtual classes in C++ or interfaces in java is that you don't declare the interface on the class that implements the interface, but on the method that receives the interface.
For example, I can create an interface with a Read and a Write method and call it ThingsDustinReadsAndWrites and have a function called doReadsAndWrites(rr ThingsDustinReadsAndWrites. That can, in turn, receive a built-in http.ClientConn which has never heard of my interface, but implements it because it happens to have those methods.
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