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Struct 如何使用F将值设置为结构的'Item'#

struct f#

Struct 如何使用F将值设置为结构的'Item'#,struct,f#,set,Struct,F#,Set,如何将值设置为结构的项？我尝试了以下两种类型，但最终都出现了值必须是可变的错误 module Test1 = [<Struct>] type Test (array: float []) = member o.Item with get i = array.[i] and set i value = array.[i] <- value let test = Test [|0.0|] test.[0] <- 4.0 mo

如何将值设置为结构的
项
？我尝试了以下两种类型，但最终都出现了
值必须是可变的
错误


module Test1 =
  [<Struct>]
  type Test (array: float []) =
    member o.Item
      with get i = array.[i]
      and set i value = array.[i] <- value

  let test = Test [|0.0|]
  test.[0] <- 4.0

module Test2 =

  [<Struct>]
  type Test =
    val mutable array: float []
    new (array: float []) = { array = array }
    member o.Item
      with get i = o.array.[i]
      and set i value = o.array.[i] <- value

  let test = Test [|0.0|]
  test.[0] <- 4.0



模块测试1=
[]
型式试验（阵列：浮点[]）=
成员o.项目
使用get i=数组。[i]
并设置i value=array。[i]请尝试替换：


 let test = Test [|0.0|]


与：


 let mutable test = Test [|0.0|]