有没有简单的方法来打印数组的每个元素？(Is there a simple way to print each element of an array?)

有没有简单的方法来打印数组的每个元素？(Is there a simple way to print each element of an array?) let x=[|15..20|] let y=Array.map f x printf "%O" y

那么，我有一个类型信息。

有没有办法用“，”的分隔符打印“y”的每个元素，而不必使用for循环？

let x=[|15..20|] let y=Array.map f x printf "%O" y

Well, I got a type information.

Is there any way to print each element of "y" with delimiter of ",", while not having to use a for loop?

最满意答案

在System命名空间或F＃'native'中使用String.Join ：

let x = [| 15 .. 20 |] printfn "%s" (System.String.Join(",", x)) x |> Seq.map string |> String.concat "," |> printfn "%s"

Either use String.Join in the System namespace or F# 'native':

let x = [| 15 .. 20 |] printfn "%s" (System.String.Join(",", x)) x |> Seq.map string |> String.concat "," |> printfn "%s"