这是F#Builder的bug还是我的误解？

当我尝试控制台编程时，我收到了意想不到的结果

open System

let printSomeMessage =        
    printfn "Is this the F# BUG?"    

[<EntryPoint>]
let main args =    
    if args.Length = 2 then
        printSomeMessage
    else        
        printfn "Args.Length is not two."
    0

---

我是否缺少一些语法或F#特征？还是F#builder的BUG？

不，这是代码中的BUG。您需要在“printSomeMessage”之后添加括号，否则printSomeMessage是一个简单的值，而不是一个函数

open System

let printSomeMessage() =        
    printfn "Is this the F# BUG?"    

[<EntryPoint>]
let main args =    
    if args.Length = 2 then
        printSomeMessage()
    else        
        printfn "Args.Length is not two."
    0

---

很明显，我能理解！非常感谢。没问题，很高兴我的回答有帮助。

Is this the F# BUG?
Args.Length is not two.

open System

let printSomeMessage() =        
    printfn "Is this the F# BUG?"    

[<EntryPoint>]
let main args =    
    if args.Length = 2 then
        printSomeMessage()
    else        
        printfn "Args.Length is not two."
    0

let x = 1
let y = "my string"