錯誤FS0193：內部錯誤：無法從程序集'FSI-ASSEMBLY，Version = 0.0.0.0，Culture = neutral，PublicKeyToken = null'加載'anyType'類型

Question

當使用任何類型的可調整數組時，我無法循環該數組，f＃似乎不理解我的預定義類型。 這裏是一個示例代碼：

type someData = { 
    Entry:string ; id:int } 
let datas = new ResizeArray<someData>() 
let record1 = {someData.Entry = "hiLo" ;someData.id =1234 } 
datas.Add(record1) 
let record2 = {someData.Entry = "Lolo" ;someData.id =1224 } 
datas.Add(record2) 
let record3 = {someData.Entry = "Hihi" ;someData.id =1231 } 
datas.Add(record3) 
let nameOnly = new ResizeArray<string>() 
for entries in datas do 
    nameOnly.Add(entries.Entry) 

Answer 1

如果您在

type someData = 
    { Entry:string ; id:int } 

let datas = new ResizeArray<someData>() 
let record1 = {someData.Entry = "hiLo" ;someData.id =1234 } 
datas.Add(record1) 
let record2 = {someData.Entry = "Lolo" ;someData.id =1224 } 
datas.Add(record2) 
let record3 = {someData.Entry = "Hihi" ;someData.id =1231 } 
datas.Add(record3) 
let nameOnly = new ResizeArray<string>() 

let createEntries() = 
    for entries in datas do 
     nameOnly.Add(entries.Entry) 
createEntries() 

運行示例代碼是沒有問題的。如果您首先將代碼的一部分輸入到for循環，然後輸入for循環，代碼也會運行。我認爲這與將該類型放入交互式的臨時模塊有關。