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如何从 vbscript 中的数组中删除重复项?

代码:

     dim XObj(100),xObjXml
      for s=0 to xObjXml.length-1      
      XObj(s)=xObjXml(s).getAttribute("xsx")
      next

请为此提出一个更好的答案。

4

2 回答 2

3

使用Dictionary收集数组的唯一项:

>> a = Array(1, 2, 3, 1, 2, 3)
>> WScript.Echo Join(a)
>> Set d = CreateObject("Scripting.Dictionary")
>> For i = 0 To UBound(a)
>>     d(a(i)) = d(a(i)) + 1
>> Next
>> WScript.Echo Join(d.Keys())
>>
1 2 3 1 2 3
1 2 3
>>

(顺便说一句:VBScript 数组没有 .length 属性)

添加:

字典的 .Keys() 方法返回一个(唯一)键的数组:

>> b = d.Keys()
>> WScript.Echo Join(b), "or:", b(2), b(1), b(0)
>>
1 2 3 or: 3 2 1

补充二:(航空代码!)

尝试获取 XML 集合中对象的唯一属性:

Dim xObjXml  : Set xObjXml  = ... get some collection of XML objects ...
Dim dicAttrs : Set dicAttrs = CreateObject("Scripting.Dictionary")
Dim i
For i = 0 To xObjXml.length - 1                 
    Dim a : a = xObjXml(i).getAttribute("xsx")  
    dicAttrs(a) = dicAttrs(a) + 1
Next
Dim aAttrs : aAttrs = dicAttrs.Keys()

添加了 III(对不起!):

.Keys() 是一种方法,因此应该这样调用它:

Dim aAttrs : aAttrs = dicAttrs.Keys()

补充四:

有关工作示例,请参见此处

于 2012-11-22T12:42:17.073 回答
0

如果您不想要 Dictionary 您可以使用以下内容将数组中的每个元素与其自身进行比较。

Info = Array("Arup","John","Mike","John","Lisa","Arup")

x = 0
z = ubound(Info)
Do
x = x + 1
Do
z = z - 1
If x = z Then
Info(x) = Info(z)
ElseIf Info(x) = Info(z) Then
Info(x) = ""
End If
Loop Until z=0
z = ubound(Info)
Loop Until x = ubound(Info)
For each x in Info 
If x <> "" Then
Unique = Unique & Chr(13) & x
End If
Next

MsgBox Unique
于 2021-04-22T01:32:35.007 回答