📅  最后修改于: 2023-12-03 14:41:02.966000             🧑  作者: Mango
在 Excel VBA 中,连接变量数组可以将多个数组合并为一个数组,为数据处理和分析提供便利。下面介绍如何通过 VBA 代码实现连接变量数组的功能。
在开始连接变量数组前,首先需要定义多个变量数组,例如:
Dim arr1() As Variant
Dim arr2() As Variant
arr1 = Array("A", "B", "C")
arr2 = Array("D", "E", "F")
连接变量数组可以使用 VBA 内置函数 ConcatenateArrays,该函数的语法如下:
Function ConcatenateArrays(ParamArray arr() As Variant) As Variant
其中,ParamArray 关键字表示允许变长参数列表,可以接受任意数量的参数。
下面是使用 ConcatenateArrays 函数连接 arr1 和 arr2 两个变量数组的示例代码:
Dim arr() As Variant
arr = ConcatenateArrays(arr1, arr2)
此时,arr 变量数组的值为 {"A", "B", "C", "D", "E", "F"}。
下面是完整的示例代码,演示如何连接两个变量数组并输出结果:
Sub TestConcatenateArrays()
Dim arr1() As Variant
Dim arr2() As Variant
Dim arr() As Variant
Dim i As Long
arr1 = Array("A", "B", "C")
arr2 = Array("D", "E", "F")
arr = ConcatenateArrays(arr1, arr2)
For i = LBound(arr) To UBound(arr)
Debug.Print arr(i)
Next i
End Sub
Function ConcatenateArrays(ParamArray arr() As Variant) As Variant
Dim combined() As Variant
Dim size As Long
Dim i As Long
Dim j As Long
Dim k As Long
size = UBound(arr(0)) - LBound(arr(0)) + 1
For i = LBound(arr) + 1 To UBound(arr)
size = size + UBound(arr(i)) - LBound(arr(i)) + 1
Next i
ReDim combined(LBound(arr(0)) To size - 1)
For i = LBound(arr) To UBound(arr)
For j = LBound(arr(i)) To UBound(arr(i))
combined(k) = arr(i)(j)
k = k + 1
Next j
Next i
ConcatenateArrays = combined
End Function
通过 VBA 内置函数 ConcatenateArrays,可以轻松实现连接变量数组的功能,方便实现数据处理和分析任务。在使用过程中,注意要定义并初始化变量数组,并确保连接时参数的数量和类型正确。