Excel常用技能分享与探讨(5-宏与VBA简介 VBA-实用自定义过程)
liuian 2025-06-13 14:49 6 浏览
系统的学习了VBA之后,可以把一些重复的功能即成为一个函数过程,使用时直接调用即可。以下整理了一些实用的技巧,这些函数和子过程涵盖了文件操作、数据验证、地理计算、自动化任务等场景,可根据实际需求调整参数(如分隔符、保存路径等)。对于敏感操作,建议先在小范围测试后再全面使用。
一、实用函数(Function) - 可在工作表中直接调用
' 1. 十进制转二进制(指定位数)
Function DecToBin(ByVal Number As Long, Optional Bits As Integer = 8) As String
If Number >= 2 ^ Bits Then DecToBin = "溢出": Exit Function
Dim i As Integer, result As String
For i = Bits - 1 To 0 Step -1
result = result & IIf(Number And 2 ^ i, "1", "0")
Next
DecToBin = result
End Function
' 2. 提取分隔文本的指定部分
Function SplitText(ByVal Text As String, ByVal Delimiter As String, ByVal Index As Integer) As String
Dim arr() As String
arr = Split(Text, Delimiter)
If Index > UBound(arr) + 1 Or Index < 1 Then SplitText = "" Else SplitText = arr(Index - 1)
End Function
' 3. 合并区域内容(自定义分隔符)
Function MergeRange(rng As Range, Optional Delimiter As String = ",") As String
Dim cell As Range, result As String
For Each cell In rng
If cell.Value <> "" Then result = result & cell.Value & Delimiter
Next
If Len(result) > 0 Then result = Left(result, Len(result) - Len(Delimiter))
MergeRange = result
End Function
' 4. 计算两个日期之间的工作日(排除周末)
Function WorkDays(StartDate As Date, EndDate As Date) As Integer
Dim totalDays As Integer, i As Integer
totalDays = 0
For i = StartDate To EndDate
If Weekday(i, vbMonday) < 6 Then totalDays = totalDays + 1
Next
WorkDays = totalDays
End Function
' 5. 中文数字转阿拉伯数字(简易版)
Function ChineseToNumber(ByVal str As String) As Long
Dim dict As Object, i As Long, result As Long
Set dict = CreateObject("Scripting.Dictionary")
dict("一") = 1: dict("二") = 2: dict("三") = 3: dict("四") = 4: dict("五") = 5
dict("六") = 6: dict("七") = 7: dict("八") = 8: dict("九") = 9: dict("十") = 10
For i = 1 To Len(str)
If dict.exists(Mid(str, i, 1)) Then result = result + dict(Mid(str, i, 1))
Next
ChineseToNumber = result
End Function
' 6. 提取文件路径中的文件名(无扩展名)
Function ExtractFileName(fullPath As String) As String
Dim fileName As String
fileName = Mid(fullPath, InStrRev(fullPath, "\") + 1)
ExtractFileName = Left(fileName, InStrRev(fileName, ".") - 1)
End Function
' 7. 验证电子邮件格式
Function IsValidEmail(email As String) As Boolean
Dim regex As Object
Set regex = CreateObject("VBScript.RegExp")
regex.Pattern = "^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}#34;
IsValidEmail = regex.Test(email)
End Function
' 8. 生成指定范围的随机密码
Function GeneratePassword(Optional length As Integer = 8) As String
Const chars As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*"
Dim i As Integer, result As String
Randomize
For i = 1 To length
result = result & Mid(chars, Int(Rnd * Len(chars)) + 1, 1)
Next
GeneratePassword = result
End Function
' 9. 将秒数转换为时分秒格式
Function SecondsToHMS(totalSeconds As Long) As String
Dim hours As Long, minutes As Long, seconds As Long
hours = totalSeconds \ 3600
minutes = (totalSeconds Mod 3600) \ 60
seconds = totalSeconds Mod 60
SecondsToHMS = Format(hours, "00") & ":" & Format(minutes, "00") & ":" & Format(seconds, "00")
End Function
二、实用子过程(Sub) - 通过宏运行
' 1. 隔行填充数据(核心需求)
Sub FillAlternateRows()
Dim rng As Range, cell As Range, startRow As Integer, fillValue As String
Set rng = Application.InputBox("选择填充区域", "隔行填充", Type:=8)
If rng Is Nothing Then Exit Sub
fillValue = InputBox("输入填充内容", "填充内容", "数据")
startRow = IIf(InputBox("起始行:1-奇数行, 2-偶数行", "起始行", 1) = 1, 1, 2)
For Each cell In rng
If (cell.Row - rng.Row + startRow) Mod 2 = 1 Then cell.Value = fillValue
Next
MsgBox "隔行填充完成!"
End Sub
' 2. 自定义插入行
Sub InsertCustomRows()
Dim rowCount As Integer, targetRow As Long
rowCount = Application.InputBox("输入插入行数", "插入行", 1, Type:=1)
If rowCount < 1 Then Exit Sub
targetRow = Selection.Row
Rows(targetRow & ":" & targetRow + rowCount - 1).Insert Shift:=xlDown
End Sub
' 3. 自定义插入列
Sub InsertCustomColumns()
Dim colCount As Integer, targetCol As Long
colCount = Application.InputBox("输入插入列数", "插入列", 1, Type:=1)
If colCount < 1 Then Exit Sub
targetCol = Selection.Column
Columns(targetCol & ":" & targetCol + colCount - 1).Insert Shift:=xlRight
End Sub
' 4. 快速删除空行
Sub DeleteEmptyRows()
On Error Resume Next
Columns(1).SpecialCells(xlCellTypeBlanks).EntireRow.Delete
MsgBox "空行已删除!"
End Sub
' 5. 批量重命名工作表
Sub BatchRenameSheets()
Dim prefix As String, i As Integer
prefix = InputBox("输入工作表名前缀", "批量重命名", "Sheet_")
For i = 1 To Worksheets.Count
Worksheets(i).Name = prefix & i
Next
MsgBox "已重命名 " & i - 1 & " 个工作表!"
End Sub
' 6. 智能调整列宽(基于内容)
Sub AutoFitColumns()
Dim ws As Worksheet
Set ws = ActiveSheet
ws.Cells.EntireColumn.AutoFit
MsgBox "列宽已自动调整!"
End Sub
' 7. 跨表数据收集
Sub CollectDataFromSheets()
Dim masterSheet As Worksheet, dataSheet As Worksheet
Dim lastRow As Long, destRow As Long
Set masterSheet = ThisWorkbook.Sheets.Add(After:=Sheets(Sheets.Count))
masterSheet.Name = "汇总数据"
destRow = 1
For Each dataSheet In ThisWorkbook.Sheets
If dataSheet.Name <> masterSheet.Name Then
lastRow = dataSheet.Cells(Rows.Count, 1).End(xlUp).Row
dataSheet.Range("A1:Z" & lastRow).Copy masterSheet.Cells(destRow, 1)
destRow = destRow + lastRow
End If
Next
MsgBox "数据收集完成!共汇总 " & destRow - 1 & " 行数据"
End Sub
' 8. 批量重命名文件
Sub BatchRenameFiles()
Dim folderPath As String, newName As String, prefix As String
Dim i As Integer, fileName As String, fileExt As String
Dim fso As Object, folder As Object, file As Object
folderPath = InputBox("输入文件夹路径", "批量重命名", "C:\YourFolder\")
If folderPath = "" Then Exit Sub
prefix = InputBox("输入新文件名前缀", "文件名前缀", "File_")
Set fso = CreateObject("Scripting.FileSystemObject")
Set folder = fso.GetFolder(folderPath)
i = 1
For Each file In folder.Files
fileExt = fso.GetExtensionName(file.Name)
newName = prefix & Format(i, "000") & "." & fileExt
file.Name = newName
i = i + 1
Next
MsgBox "已重命名 " & i - 1 & " 个文件!"
End Sub
' 9. 数据透视表自动创建
Sub CreatePivotTable()
Dim ws As Worksheet, ptCache As PivotCache, pt As PivotTable
Dim dataRange As Range, destRange As Range
' 设置数据源和目标位置
Set ws = ActiveSheet
Set dataRange = ws.UsedRange
Set destRange = ws.Cells(dataRange.Rows.Count + 3, 1)
' 创建透视表
Set ptCache = ThisWorkbook.PivotCaches.Create( _
SourceType:=xlDatabase, _
SourceData:=dataRange)
Set pt = ptCache.CreatePivotTable( _
TableDestination:=destRange, _
TableName:="SummaryPivot")
' 配置透视表字段
With pt
.PivotFields("类别").Orientation = xlRowField
.PivotFields("地区").Orientation = xlColumnField
.PivotFields("销售额").Orientation = xlDataField
.DataPivotField.Function = xlSum
End With
MsgBox "数据透视表创建完成!"
End Sub
' 10. 批量导出图表为图片
Sub ExportChartsAsImages()
Dim ws As Worksheet, chartObj As ChartObject
Dim folderPath As String, i As Integer
folderPath = InputBox("输入保存路径", "导出图表", "C:\ChartExports\")
If Right(folderPath, 1) <> "\" Then folderPath = folderPath & "\"
On Error Resume Next
MkDir folderPath
On Error GoTo 0
i = 0
For Each ws In ThisWorkbook.Worksheets
For Each chartObj In ws.ChartObjects
chartObj.Chart.Export folderPath & ws.Name & "_Chart" & i & ".png", "PNG"
i = i + 1
Next
Next
MsgBox "成功导出 " & i & " 个图表!"
End Sub
' 11. 智能数据分列(自动识别分隔符)
Sub SmartTextToColumns()
Dim rng As Range, cell As Range
Dim commonDelimiters As Variant
Dim delimiter As String, maxCount As Integer, count As Integer, i As Integer
Set rng = Selection
commonDelimiters = Array(",", ";", "|", vbTab, " ")
' 自动检测最可能的分隔符
For Each cell In rng.Cells(1).Resize(10)
For i = 0 To UBound(commonDelimiters)
count = Len(cell.Value) - Len(Replace(cell.Value, commonDelimiters(i), ""))
If count > maxCount Then
maxCount = count
delimiter = commonDelimiters(i)
End If
Next
Next
If delimiter = "" Then delimiter = InputBox("未检测到分隔符,请手动输入", "分隔符", ",")
' 执行分列操作
rng.TextToColumns Destination:=rng.Cells(1), DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, _
Tab:=False, Semicolon:=False, Comma:=False, Space:=False, _
Other:=True, OtherChar:=delimiter
MsgBox "已完成分列操作,使用分隔符: " & IIf(delimiter = vbTab, "[Tab]", delimiter)
End Sub
' 12. 数据完整性检查(查找空单元格)
Sub CheckDataIntegrity()
Dim ws As Worksheet, rng As Range, emptyCells As Range
Dim col As Integer, result As String
Set ws = ActiveSheet
result = "数据完整性检查结果:" & vbCrLf & vbCrLf
For col = 1 To ws.UsedRange.Columns.Count
On Error Resume Next
Set emptyCells = ws.Columns(col).SpecialCells(xlCellTypeBlanks)
On Error GoTo 0
If Not emptyCells Is Nothing Then
result = result & "列 " & Split(ws.Cells(1, col).Address(False, False), "#34;)(0) & _
": 发现 " & emptyCells.Count & " 个空单元格" & vbCrLf
emptyCells.Interior.Color = RGB(255, 255, 0) ' 标记为黄色
Set emptyCells = Nothing
End If
Next
MsgBox result & vbCrLf & "空单元格已标记为黄色", vbInformation, "数据检查"
End Sub
' 13. 定时保存工作簿
Sub AutoSaveWithTimestamp()
Dim savePath As String, fileName As String
savePath = ThisWorkbook.Path & "\Backups\"
fileName = Replace(ThisWorkbook.Name, ".xlsm", "") & "_" & Format(Now, "yyyymmdd_hhmmss") & ".xlsm"
On Error Resume Next
MkDir savePath
On Error GoTo 0
ThisWorkbook.SaveCopyAs savePath & fileName
MsgBox "工作簿已备份为: " & fileName, vbInformation, "自动备份"
End Sub
3、使用说明:
- 函数使用:
在工作表单元格中直接调用,如 =DecToBin(15, 8)
示例:=SplitText(A1, "-", 2) 拆分A1单元格内容
- 子过程使用:
按 Alt+F8 打开宏窗口
选择要运行的宏(如"FillAlternateRows")
点击"执行"按钮
- 隔行填充说明:
运行"FillAlternateRows"宏
选择要填充的区域
输入填充内容(如"奇数行")
选择起始行类型(1=奇数行,2=偶数行)
- 推荐操作:
将常用宏添加到快速访问工具栏
使用快捷键绑定(开发工具 → 宏 → 选项 → 设置快捷键)
提示:使用前请备份数据,部分操作(如删除空行)不可撤销。可通过修改代码中的参数(如分隔符、起始行设置等)适应具体需求。
函数使用示例:
=ExtractFileName("C:\Reports\Q3_Summary.xlsx") → 返回 "Q3_Summary"
=IsValidEmail("test@example.com") → 返回 TRUE
=DistanceBetweenPoints(40.7128, -74.0060, 34.0522, -118.2437) → 约3940000米
=GeneratePassword(12) → 随机生成12位密码
子过程使用技巧:
- 定时保存工作簿:可绑定到按钮或通过Application.OnTime定时调用
- 智能分列:自动识别最常见分隔符,减少手动配置
- 数据完整性检查:快速定位缺失数据点
推荐实践:
- 将常用宏添加到快速访问工具栏
- 为复杂操作创建用户窗体(UserForm)提供更好界面
- 使用错误处理(On Error Resume Next)避免意外中断
- 对关键操作添加确认对话框,防止误操作
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