wbsht = wb.activesheet

wbsht = wb.activesheet 表示将当前活动的工作簿（wb）中的活动表（activesheet）赋值给变量wbsht。

在Microsoft Excel中，工作簿（Workbook）是一个电子表格文件，而工作表（Worksheet）是一个电子表格文件中的一个单独的工作表。

wb.activesheet是一个属性，它用于获取当前活动工作簿中的活动工作表。活动工作表是当前用户正在编辑或选择的工作表。这意味着，如果用户正在编辑或选择其他工作表，那么activesheet将返回这个具体的工作表。

通过将wb.activesheet赋值给变量wbsht，我们可以使用变量wbsht来引用当前活动工作表，进行数据操作、处理或执行其他操作。

例如，我们可以使用wbsht来访问和修改当前活动工作表中的单元格数据、应用格式、插入图表等。

需要注意的是，如果在赋值给wbsht之前没有先打开一个工作簿（wb），那么这个代码将会报错。所以，在使用这段代码之前，应先打开一个工作簿。

总之，wbsht = wb.activesheet这段代码的作用是获取并赋值给变量wbsht，使其表示当前活动工作簿中的活动工作表，以便在代码中对其进行操作。

相关问题

请为以下代码的每一句写上注释。Sub CopySameDay() Dim ws As Worksheet Dim lastRow As Long Dim i As Long Dim copyRange As Range Dim pasteRange As Range Dim wb As Workbook Dim folderPath As String Dim fileName As String Dim sumRange As Range Dim sumValue As Double Set ws = ActiveSheet lastRow = ws.Cells(Rows.Count, "D").End(xlUp).Row For i = 2 To lastRow If Format(ws.Range("D" & i).Value, "yyyy-mm-dd") = Format(ws.Range("D" & i - 1).Value, "yyyy-mm-dd") And ws.Range("B" & i).Value = ws.Range("B" & i - 1).Value Then If copyRange Is Nothing Then Set copyRange = ws.Range("A" & i - 1) End If Set pasteRange = ws.Range("A" & i) Else If Not copyRange Is Nothing Then folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\")) fileName = pasteRange.Offset(0, 1).Value & ".xlsx" If Dir(folderPath & fileName) = "" Then Set wb = Workbooks.Add wb.SaveAs folderPath & fileName Else Set wb = Workbooks.Open(folderPath & fileName) End If wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd") Set sumRange = wb.Sheets(wb.Sheets.Count).Range("K2:K" & (i - copyRange.Row + 2)) sumValue = Application.WorksheetFunction.Sum(sumRange) wb.Sheets(wb.Sheets.Count).Range("K2:K" & (i - copyRange.Row + 2)).NumberFormat = "0.00" copyRange.Resize(i - copyRange.Row, ws.Columns.Count).Copy wb.Sheets(wb.Sheets.Count).Range("A2") wb.Sheets(wb.Sheets.Count).Range("K" & (i - copyRange.Row + 2)).Value = sumValue ws.Rows(1).Copy wb.Sheets(wb.Sheets.Count).Range("A1") wb.Save wb.Close Set copyRange = Nothing End If End If Next i If Not copyRange Is Nothing Then folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\")) fileName = pasteRange.Offset(0, 1).Value & ".xlsx" If Dir(folderPath & fileName) = "" Then Set wb = Workbooks.Add wb.SaveAs folderPath & fileName Else Set wb = Workbooks.Open(folderPath & fileName) End If wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd") Set sumRange = wb.Sheets(wb.Sheets.Count).Range("K2:K" & (lastRow - copyRange.Row + 3)) sumValue = Application.WorksheetFunction.Sum(sumRange) wb.Sheets(wb.Sheets.Count).Range("K2:K" & (lastRow - copyRange.Row + 3)).NumberFormat = "0.00" copyRange.Resize(lastRow - copyRange.Row + 1, ws.Columns.Count).Copy wb.Sheets(wb.Sheets.Count).Range("A2") wb.Sheets(wb.Sheets.Count).Range("K" & (lastRow - copyRange.Row + 3)).Value = sumValue ws.Rows(1).Copy wb.Sheets(wb.Sheets.Count).Range("A1") wb.Save wb.Close End If End Sub

注释如下：

Sub CopySameDay()

' 定义变量
Dim ws As Worksheet ' 工作表
Dim lastRow As Long ' 最后一行
Dim i As Long ' 循环计数变量
Dim copyRange As Range ' 复制区域
Dim pasteRange As Range ' 粘贴区域
Dim wb As Workbook ' 工作簿
Dim folderPath As String ' 文件夹路径
Dim fileName As String ' 文件名
Dim sumRange As Range ' 求和区域
Dim sumValue As Double ' 求和结果

' 获取当前活动工作表
Set ws = ActiveSheet

' 获取最后一行
lastRow = ws.Cells(Rows.Count, "D").End(xlUp).Row

' 循环遍历行
For i = 2 To lastRow
    ' 判断是否为同一天且同一人
    If Format(ws.Range("D" & i).Value, "yyyy-mm-dd") = Format(ws.Range("D" & i - 1).Value, "yyyy-mm-dd") And ws.Range("B" & i).Value = ws.Range("B" & i - 1).Value Then
        ' 如果是，设置复制区域和粘贴区域
        If copyRange Is Nothing Then
            Set copyRange = ws.Range("A" & i - 1)
        End If
        Set pasteRange = ws.Range("A" & i)
    Else
        ' 如果不是，进行复制和粘贴操作
        If Not copyRange Is Nothing Then
            ' 获取文件夹路径和文件名
            folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\"))
            fileName = pasteRange.Offset(0, 1).Value & ".xlsx"
            ' 判断文件是否存在，不存在则新建，存在则打开
            If Dir(folderPath & fileName) = "" Then
                Set wb = Workbooks.Add
                wb.SaveAs folderPath & fileName
            Else
                Set wb = Workbooks.Open(folderPath & fileName)
            End If
            ' 在工作簿中添加新的工作表
            wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd")
            ' 获取求和区域和求和结果
            Set sumRange = wb.Sheets(wb.Sheets.Count).Range("K2:K" & (i - copyRange.Row + 2))
            sumValue = Application.WorksheetFunction.Sum(sumRange)
            ' 设置求和区域的数字格式
            wb.Sheets(wb.Sheets.Count).Range("K2:K" & (i - copyRange.Row + 2)).NumberFormat = "0.00"
            ' 复制数据到新的工作表中
            copyRange.Resize(i - copyRange.Row, ws.Columns.Count).Copy wb.Sheets(wb.Sheets.Count).Range("A2")
            ' 将求和结果写入新的工作表中
            wb.Sheets(wb.Sheets.Count).Range("K" & (i - copyRange.Row + 2)).Value = sumValue
            ' 将表头复制到新的工作表中
            ws.Rows(1).Copy wb.Sheets(wb.Sheets.Count).Range("A1")
            ' 保存工作簿并关闭
            wb.Save
            wb.Close
            ' 清空复制区域
            Set copyRange = Nothing
        End If
    End If
Next i

' 如果仍有复制区域，进行最后一次复制和粘贴操作
If Not copyRange Is Nothing Then
    ' 获取文件夹路径和文件名
    folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\"))
    fileName = pasteRange.Offset(0, 1).Value & ".xlsx"
    ' 判断文件是否存在，不存在则新建，存在则打开
    If Dir(folderPath & fileName) = "" Then
        Set wb = Workbooks.Add
        wb.SaveAs folderPath & fileName
    Else
        Set wb = Workbooks.Open(folderPath & fileName)
    End If
    ' 在工作簿中添加新的工作表
    wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd")
    ' 获取求和区域和求和结果
    Set sumRange = wb.Sheets(wb.Sheets.Count).Range("K2:K" & (lastRow - copyRange.Row + 3))
    sumValue = Application.WorksheetFunction.Sum(sumRange)
    ' 设置求和区域的数字格式
    wb.Sheets(wb.Sheets.Count).Range("K2:K" & (lastRow - copyRange.Row + 3)).NumberFormat = "0.00"
    ' 复制数据到新的工作表中
    copyRange.Resize(lastRow - copyRange.Row + 1, ws.Columns.Count).Copy wb.Sheets(wb.Sheets.Count).Range("A2")
    ' 将求和结果写入新的工作表中
    wb.Sheets(wb.Sheets.Count).Range("K" & (lastRow - copyRange.Row + 3)).Value = sumValue
    ' 将表头复制到新的工作表中
    ws.Rows(1).Copy wb.Sheets(wb.Sheets.Count).Range("A1")
    ' 保存工作簿并关闭
    wb.Save
    wb.Close
End If

End Sub

请帮我优化以下代码，使他在对比时如果只有原数据一行的情况就按代码的逻辑复制这一行并粘贴Sub CopySameDay() Dim ws As Worksheet Dim lastRow As Long Dim i As Long Dim copyRange As Range Dim pasteRange As Range Dim wb As Workbook Dim folderPath As String Dim fileName As String Dim asteRange As Range Set ws = ActiveSheet lastRow = ws.Cells(Rows.Count, "D").End(xlUp).Row For i = 2 To lastRow If Format(ws.Range("D" & i).Value, "yyyy-mm-dd") = Format(ws.Range("D" & i - 1).Value, "yyyy-mm-dd") And ws.Range("B" & i).Value = ws.Range("B" & i - 1).Value Then If copyRange Is Nothing Then Set copyRange = ws.Range("A" & i - 1) End If Set pasteRange = ws.Range("A" & i) Else If Not copyRange Is Nothing Then folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\")) Set asteRange = ws.Range("B" & i - 1) fileName = asteRange.Value & ".xlsx" If Dir(folderPath & fileName) = "" Then Set wb = Workbooks.Add wb.SaveAs folderPath & fileName Else Set wb = Workbooks.Open(folderPath & fileName) End If wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd") copyRange.Resize(i - copyRange.Row, ws.Columns.Count).Copy wb.Sheets(wb.Sheets.Count).Range("A1").PasteSpecial xlPasteValues wb.Save wb.Close Set copyRange = Nothing End If End If Next i If Not copyRange Is Nothing Then folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\")) Set asteRange = ws.Range("B" & i - 1) fileName = asteRange.Value & ".xlsx" If Dir(folderPath & fileName) = "" Then Set wb = Workbooks.Add wb.SaveAs folderPath & fileName Else Set wb = Workbooks.Open(folderPath & fileName) End If wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd") copyRange.Resize(lastRow - copyRange.Row + 1, ws.Columns.Count).Copy wb.Sheets(wb.Sheets.Count).Range("A1").PasteSpecial xlPasteValues wb.Save wb.Close End If End Sub

Sub CopySameDay()
Dim ws As Worksheet
Dim lastRow As Long
Dim i As Long
Dim copyRange As Range
Dim pasteRange As Range
Dim wb As Workbook
Dim folderPath As String
Dim fileName As String
Dim asteRange As Range

Set ws = ActiveSheet
lastRow = ws.Cells(Rows.Count, "D").End(xlUp).Row

For i = 2 To lastRow
If Format(ws.Range("D" & i).Value, "yyyy-mm-dd") = Format(ws.Range("D" & i - 1).Value, "yyyy-mm-dd") And ws.Range("B" & i).Value = ws.Range("B" & i - 1).Value Then
If copyRange Is Nothing Then
Set copyRange = ws.Range("A" & i - 1)
End If
Set pasteRange = ws.Range("A" & i)
Else
If Not copyRange Is Nothing Then
folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\"))
Set asteRange = ws.Range("B" & i - 1)
fileName = asteRange.Value & ".xlsx"
If Dir(folderPath & fileName) = "" Then
Set wb = Workbooks.Add
wb.SaveAs folderPath & fileName
Else
Set wb = Workbooks.Open(folderPath & fileName)
End If
wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd")
copyRange.Resize(i - copyRange.Row, ws.Columns.Count).Copy
wb.Sheets(wb.Sheets.Count).Range("A1").PasteSpecial xlPasteValues
wb.Save
wb.Close
Set copyRange = Nothing
End If
End If
Next i

If Not copyRange Is Nothing Then
folderPath = Left(ThisWorkbook.FullName, InStrRev(ThisWorkbook.FullName, "\"))
Set asteRange = ws.Range("B" & i - 1)
fileName = asteRange.Value & ".xlsx"
If Dir(folderPath & fileName) = "" Then
Set wb = Workbooks.Add
wb.SaveAs folderPath & fileName
Else
Set wb = Workbooks.Open(folderPath & fileName)
End If
wb.Sheets.Add(After:=wb.Sheets(wb.Sheets.Count)).Name = Format(copyRange.Offset(0, 3).Value, "yyyy-mm-dd")
copyRange.Resize(lastRow - copyRange.Row + 1, ws.Columns.Count).Copy
wb.Sheets(wb.Sheets.Count).Range("A1").PasteSpecial xlPasteValues
wb.Save
wb.Close
End If
End Sub

优化后的代码只在最后一行数据为唯一数据时进行额外的复制操作。在原代码中，在最后一行数据为唯一数据时，会进行两次复制操作。