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问题描述
我找不到合适的语法来编码类型D,该类型D继承了基类B(用C#编写)及其除基类隐式构造函数之外的构造函数:
I can't find the proper syntax for coding a type D that inherits a base class B (written in C#) and his constructors other than the base class implicit constructor:
C#代码:
public class B { private int _i; private float _f; public B() { _i = 0; _f = 0.0f; } public B(int i) { _i = 0; _f = 0.0f; } public B(int i, float f) { _i = i; _f = f; } }F#代码:
type D() = inherit B() //how to inherit from other constructors ?谢谢
推荐答案由于这个博客!
type D = class inherit B new () = { inherit B() } new (i : int) = { inherit B(i) } new ((i,f) : int*single) = { inherit B(i, f) } end是的,这有点麻烦,但就像Brian所说的那样,并不是大多数情况。
Yes, it's a bit cumbersome, but like Brian said it's not the majority of the cases.
编辑:实际上,class / end关键字不是强制性的(因此,我收回了我所说的麻烦)。 正如Brian在其博客此处所述, F#通常会推断所定义的类型,使这些令牌不必要/多余。
Actually, class/end keywords are not mandatory for that (so I take back what i said about cumbersomeness). As Brian said on his blog here, F# normally infers the kind of type being defined, making these tokens unnecessary/redundant.
type D = inherit B new () = { inherit B() } new (i : int) = { inherit B(i) } new ((i,f) : int*single) = { inherit B(i, f) }更多推荐
F#中的类型继承
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