F# - 在 F# 交互窗口中显示完整结果 [英] F# - Display full results in F# interactive window

问题描述

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如果我在 Visual Studio 的 F# 文件中键入以下内容

If I type the following into an F# file in Visual Studio

#light

let squares =
    seq { for x in 1 .. 10 -> x * x }

printf "%A" squares

并通过突出显示并按Alt+Enter在其上运行F#交互，交互窗口中的输出为

and run F# interactive on it by highlighting and pressing Alt+Enter, the output in the interactive window is

> 
seq [1; 4; 9; 16; ...]
val squares : seq<int>

>

但我想看到完整的序列，即

But I want to see the full sequence i.e.

> 
seq [1; 4; 9; 16; 25; 36; 49; 64; 81; 100]
val squares : seq<int>

>

这可能吗?我希望有一个我错过的设置.

Is this possible? I'm hoping that there is a setting for this that I've missed.

推荐答案

'seq' 是一个惰性求值的结构；它可能是无限的，这就是 FSI 只显示前几个值的原因.如果您想查看所有内容，一个简单的方法是转换为列表，例如

'seq' is a lazily-evaluated construct; it could be infinite, which is why FSI only shows the first few values. If you want to see it all, an easy thing to do is convert to a list, e.g.

printf "%A" (squares |> Seq.tolist)

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