在一行中以零声明多个变量 [英] Declare multiple variables with zero in one line

问题描述

在旧的宏中，我像

Dim Jan_Bnm, Feb_Bnm, Mar_Bnm, Apr_Bnm, Mai_Bnm, Jun_Bnm, Jul_Bnm, Aug_Bnm, Sep_Bnm, Okt_Bnm, Nov_Bnm, Dez_Bnm

有了这个变量，我进行了一些计算

With this variables I make some calculations like

Jan_Bnm = Jan_Bnm + 1 
'e.g. empty = empty + 1 -> 1

现在我有一个问题，如果宏运行两次，仍然存储了旧值

Now I have the problem if the macro runs twice the old value is still stored

Jan_Bnm = Jan_Bnm + 1 
'1 = 1 + 1 -> 2

所以我所有的值都翻了一番.

So all my values are doubled.

是否可以通过声明将所有变量设置为零，这样我就不必手动设置每个变量(几百个)?

Is it possible to set all variables by declaration to zero so that I don't have to set every (some hundreds) variable manualy?

推荐答案

您的当前情况如下:

Dim a As Long, b As Long, c As Long
Sub proc1()

End Sub
Sub proc2()

End Sub

第二次运行proc1()时，避免a，b和c仍然有值的第一种方法是在proc1()上重新初始化它们:

The first way to avoid a, b and c still have a value when running proc1() the second time is to re-initialize them on proc1():

Sub proc1()
     a = 0
     b = 0 
     c = 0
     'rest of the code
End Sub

另一种方法，您可以将变量作为参数传递，并仅在proc1()上声明它们:

Another way, you could pass the variables as parameters and declare them only on proc1():

 Sub proc1()
      Dim a As Long, b As Long, c As Long
      'rest of the code
      proc2 a,b,c
 End Sub
 Sub proc2(ByVal a As Long, ByVal b As Long, ByVal c As Long)

 End Sub

或者，最后，您可能会考虑使用一个集合而不是使用N个变量.示例:

Or, finally, you might think about working with a collection rather than with N variables. Example:

Dim myVars As New Collection
myVars.Add a
myVars.Add b
myVars.Add c

因此，您现在可以按照以下方式重新初始化变量:

So now you will be able to reinitialize the variables as follows:

For j = 1 To myVars.Count
    myVars(j) = 0
Next j

我对N个变量(公共声明或私有声明+重新初始化)所说的内容也适用于集合，但仅一次而不是N次(这就是为什么我会简化)的原因.

And what I said for the N variables (public declaration or private declaration + re-initialization) is applicable to the collection as well, but only once instead of N times (that's why I think it would simplify).

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