在F#中超时运行IO任务

open System
open System.Threading.Tasks

let timeoutMilliseconds = 5000 // 设置超时时间为5秒

let runWithTimeout (task: Task<'T>) =
    async {
        let! completedTask = Async.AwaitTask task
        return completedTask
    }
    |> Async.StartAsTask

let timeoutTask (task: Task<'T>) =
    async {
        let! completedTask = Async.AwaitTask (Task.WhenAny(task, Task.Delay(timeoutMilliseconds)))
        return completedTask
    }
    |> Async.StartAsTask

let ioTask = async {
    // 在这里编写你的IO任务代码
    return "IO任务完成"
}
|> Async.StartAsTask

let resultTask = timeoutTask ioTask

try
    let result = runWithTimeout resultTask |> Async.RunSynchronously
    printfn "IO任务结果：%s" result
with
    | :? TimeoutException ->
        printfn "IO任务超时"
    | ex ->
        printfn "发生异常：%s" ex.Message