C#object [，]转换为F# [英] C# object[,] into F#

问题描述

与C#对象数组最接近的等效F#代码是什么?

示例:

在C#中，我将创建:

Hi, what would be the closest equivalent F# code to a C# array of objects?

Example:

In C# I would create:

object[,] tableA = new object[30,2];

tableA [0, 0] = "dog";
tableA [0, 1] = 2;
tableA [1, 0] = "cat";
tableA [1, 1] = 31;

等等....


在F#中，我可以创建

and so on ....


In F# I could create

let tableA_FS = Map( [("dog", 2); ("cat", 31)] );

但是，我无法将地图转换为类型object [，]



F#中最接近obj [，]的类型是什么?

However I cannot cast a map into a type object[,]



what is the closest type in F# to obj[,]?

推荐答案

在这种情况下，可以使用array2D:
http://msdn.microsoft.com/en-us/library/ee620670.aspx [ ^ ].

另请参阅文档页面上有关F#数组的多维数组"部分:
http://msdn.microsoft.com/en-us/library/dd233214.aspx [ ^ ].

—SA

In this particular case, you can use array2D:
http://msdn.microsoft.com/en-us/library/ee620670.aspx[^].

See also the section "Multidimensional Arrays" in the documentation page on F# arrays:
http://msdn.microsoft.com/en-us/library/dd233214.aspx[^].

—SA

一种可行的方法是

A possible way to do it is

let myArray2D : obj[,] = Array2D.create 2 2 (box())
myArray2D.[0,0] <- box("cc")
myArray2D.[0,1] <- box(2.0)
...

它的类型为obj [，]

this has type obj[,]

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