VBScript:如何利用从函数返回的字典对象? [英] VBScript: How to utiliize a dictionary object returned from a function?

问题描述

我正在尝试从函数返回字典.我相信该函数工作正常，但我不确定如何使用返回的字典.

I'm trying to return a dictionary from a function. I believe the function is working correctly, but I'm not sure how to utilize the returned dictionary.

这是我的函数的相关部分:

Here is the relevant part of my function:

Function GetSomeStuff()
  '
  ' Get a recordset...
  '

  Dim stuff
  Set stuff = CreateObject("Scripting.Dictionary")
  rs.MoveFirst
  Do Until rs.EOF
    stuff.Add rs.Fields("FieldA").Value, rs.Fields("FieldB").Value
    rs.MoveNext
  Loop

  GetSomeStuff = stuff
End Function

如何调用这个函数并使用返回的字典?

How do I call this function and use the returned dictionary?

我试过这个:

Dim someStuff
someStuff = GetSomeStuff

和

Dim someStuff
Set someStuff = GetSomeStuff

当我尝试访问 someStuff 时，出现错误:

When I try to access someStuff, I get an error:

Microsoft VBScript runtime error: Object required: 'GetSomeStuff'

编辑 2:在函数中尝试这个:

EDIT 2: Trying this in the function:

Set GetSomeStuff = stuff

导致此错误:

Microsoft VBScript runtime error: Wrong number of arguments or invalid property assignment.

推荐答案

我不太确定你的问题是什么，所以我做了一些实验.

I wasn't too sure of what was your problem, so I experimented a bit.

看来您刚刚错过了为对象分配引用，您必须使用 set，即使是返回值:

It appears that you just missed that to assign a reference to an object, you have to use set, even for a return value:

Function GetSomeStuff
  Dim stuff
  Set stuff = CreateObject("Scripting.Dictionary")
    stuff.Add "A", "Anaconda"
    stuff.Add "B", "Boa"
    stuff.Add "C", "Cobra"

  Set GetSomeStuff = stuff
End Function

Set d = GetSomeStuff
Wscript.Echo d.Item("A")
Wscript.Echo d.Exists("B")
items = d.Items
For i = 0 To UBound(items)
  Wscript.Echo items(i)
Next

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