VBA数组用法案例详解

这篇文章主要介绍了VBA数组用法案例详解,本篇文章通过简要的案例,讲解了该项技术的了解与使用,以下就是详细内容,需要的朋友可以参考下

前言

VBA数组在Excel开发应用中，作用还是很明显的，用好数组可以提高工作效率，下面就开始揭开VBA数组的神秘面纱。

具体操作

1、VBA数组的定义方法

下面是几种数组常用的定义方法，一维数组的定义、二维数组的定义

直接赋值定义、调用Array函数定义、调用Excel工作表内存数组

 ''''''''''''直接定义给数组赋值 '一维常量数组的定义 Sub arrDemo1() Dim arr(2) As Variant   '数组 arr(0) = "vba" arr(1) = 100 arr(2) = 3.14 MsgBox arr(0) End Sub '二维常量数组的定义 Sub arrDemo2() Dim arr(1, 1) As Variant  'Dim arr(0 To 1, 0 To 1) As Variant arr(0, 0) = "apple" arr(0, 1) = "banana" arr(1, 0) = "pear" arr(1, 1) = "grape" For i = 0 To 1 For j = 0 To 1 MsgBox arr(i, j) Next Next End Sub ''''''''''''用array函数创建常量数组 '一维数组 Sub arrayDemo3() Dim arr As Variant   '数组 arr = Array("vba", 100, 3.14) MsgBox arr(0) End Sub '二维数组 Sub arrayDemo4() Dim arr As Variant   '数组 arr = Array(Array("张三", 100), Array("李四", 76), Array("王五", 80)) MsgBox arr(1)(1) End Sub '调用Excel工作表内存数组 ' 一维数组[{"A",1,"C"}] '二维数组[{"a",10;"b",20;"c",30}] Sub mylook() Dim arr arr = [{"a",10;"b",20;"c",30}] Range("a1:b3") = arr MsgBox Application.WorksheetFunction.VLookup("b", arr, 2, 0)  '调用vlookup时可以作为第二个参数 End Sub '动态数组的定义方法 Sub arrDemo5() Dim arr1() '声明一个动态数组（动态指不固定大小） Dim arr2  '声明一个Variant类型的变量 arr1 = Range("a1:b2")   '把单元格区域A1：B2的值装入数组arr1 arr2 = Range("a1:b2")   '把单元格区域A1：B2的值装入数组arr2 MsgBox arr1(1, 1)  '读取arr数组中第1行第1列的数值 MsgBox arr2(2, 2) '读取arr1数组的第2行第2列的数值 End Sub

2、数组的赋值和计算

 '读取单元格数据到数组，进行计算，再赋值给单元格 Sub arr_calculate() Dim arr     '声明一个变量用来盛放单元格数据 Dim i% arr = Range("a2:d5")     '把单元格数据搬入到arr里，它有4列4行 For i = 1 To 4     '通过循环在arr数组中循环 arr(i, 4) = arr(i, 3) * arr(i, 2)      '数组的第4列(金额)=第3列*第2例 Next i Range("a2:d5") = arr     '把数组放回到单元格中 End Sub

3、数组的合并（join）与拆分（split）

 '数组合并(join)与拆分(Split) Sub join_demo() Dim a As Variant Dim b As Variant ' Join using spaces a = Array("Red", "Blue", "Yellow") b = Join(a, "") MsgBox ("The value of b is :" & b) 'Red Bule Yellow ' Join using $ b = Join(a, "$")                   'Red$Bule$Yellow MsgBox ("The Join result after using delimiter is : " & b) End Sub Sub split_demo() Dim a As Variant Dim b As Variant a = Split("Red$Blue$Yellow", "$")     'a = Array("red"，"blue"，"yellow") b = UBound(a) For i = 0 To b MsgBox a(i) Next End Sub

4、数组的筛选（Filter）

 'vba数组的筛选 Sub arr_filter() arr = Array("ABC", "F", "D", "CA", "ER") arr1 = VBA.Filter(arr, "A", True) '筛选所有含A的数值组成一个新数组 arr2 = VBA.Filter(arr, "A", False) '筛选所有不含A的数值组成一个新数组 MsgBox Join(arr1, ",") '查看筛选的结果 End Sub

5、数组维度的转换（Transpose）

 '数组维数的转换 '一维转二维 Sub arr_tranpose1() arr = Array(10, "vba", 2, "b", 3) arr1 = Application.Transpose(arr) MsgBox arr1(2, 1) '转换后的数组是1列多行的二维数组 End Sub '二维数组转一维 '注意:在转置时只有1列N行的数组才能直接转置成一维数组 Sub arr_tranpose2() arr2 = Range("A1:B5") arr3 = Application.Transpose(Application.Index(arr2, , 2)) '取得arr2第2列数据并转置成1维数组 MsgBox arr3(4) End Sub '把单元格中的内容用“-”连接起来 Sub join_transpose_demo() arr = Range("A1:C1") arr1 = Range("A1:A5") MsgBox Join(Application.Transpose(Application.Transpose(arr)), "-") MsgBox Join(Application.Transpose(arr1), "-") End Sub

6、利用数组获取所有工作表名称的自定义函数

 '利用数组获取所有工作表名称的自定义函数 Function getSheetsname(id) Dim i%, arr() k = Sheets.Count ReDim arr(1 To k) For i = 1 To k arr(i) = Sheets(i).Name Next getSheetsname = Application.Index(arr, id) End Function

7、数组赋值，提高计算效率

 '数组赋值，提高计算效率 '2.03秒 Sub dataInput() Dim start As Double start = Timer Dim i& For i = 1 To 30000 Cells(i, 1) = i Next MsgBox "程序运行时间为" & Format(Timer - start, "0.00") & "秒" End Sub '0.12秒 Sub dataInputArr() Dim start As Double start = Timer Dim i&, arr(1 To 30000) As String For i = 1 To 30000 arr(i) = i Next Range("a1:a30000").Value = Application.Transpose(arr) MsgBox "程序运行时间为" & Format(Timer - start, "0.00") & "秒" End Sub '0.09秒 Sub dataInputArr2() Dim start As Double start = Timer Dim i&, arr(1 To 30000, 1 To 1) As String For i = 1 To 30000 arr(i, 1) = i Next Range("a1:a30000").Value = arr MsgBox "程序运行时间为" & Format(Timer - start, "0.00") & "秒" End Sub