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嗨,我需要将我的F#代码更改为Haskell代码,但我在Haskell中是如此新,我不能这样我的代码只是从键盘读取数据,如果数据不是整数返回错误消息然后计算n斐波纳契数然后写入list之后将列表写入txt文件这是我的代码

open System
let rec fib n = 
    match n with
    |0->0
    |1->1
    |2->1
    |n->fib(n-1)+fib(n-2);;

let printFibonacci list = 
    for i=0 to (List.length list)-1 do
        printf "%d " (list.Item(i));;

let writeToFile list = 
    let file = System.IO.File.Create("C:\out2.txt")
    let mutable s =""
    let writer = new System.IO.StreamWriter(file)
    try
        for i=0 to (List.length list)-1 do
        s <- list.Item(i).ToString()
        writer.Write(s+" ")

    finally
        writer.Close()
        file.Dispose()
        printfn "Writed To File"


let mutable control = true
let mutable num = 0
while control do 
    try
    printfn …