数据源表中有合并单元格，大小需一致

如果数据源表中存在合并单元格，那么在查找匹配数据时需要将合并单元格拆分为单个单元格，这样才能够对每个单元格进行匹配。以下是修改过的示例代码，可以处理数据源表中存在合并单元格的情况：

Sub FindData()
    Dim compareBook As Workbook
    Dim dataSourceBook As Workbook
    Dim compareSheet As Worksheet
    Dim dataSourceSheet As Worksheet
    Dim compareData As Range
    Dim dataSourceData As Range
    Dim compareCell As Range
    Dim dataSourceCell As Range
    Dim compareValue As String
    Dim dataSourceValue As String
    Dim dataSourceRange As Range
    Dim dataSourceSplit As Variant
    Dim dataSourceRow As Long
    Dim dataSourceCol As Long
    
    '打开对比文件和数据源文件
    Set compareBook = Workbooks.Open("compare.xlsx")
    Set dataSourceBook = Workbooks.Open("dataSource.xlsx")
    
    '获取需要操作的工作表对象
    Set compareSheet = compareBook.Sheets("Sheet1")
    Set dataSourceSheet = dataSourceBook.Sheets("Sheet1")
    
    '循环读取对比文件中的数据
    Set compareData = compareSheet.Range("A1:A10") '假设需要查找的数据在 A 列中
    For Each compareCell In compareData
        compareValue = compareCell.Value
        
        '在数据源文件中查找匹配的数据
        Set dataSourceData = dataSourceSheet.UsedRange '假设需要查找的数据在数据源文件中的所有单元格中
        For Each dataSourceCell In dataSourceData
            '首先需要将合并单元格拆分为单个单元格
            Set dataSourceRange = dataSourceCell.MergeArea
            dataSourceSplit = Split(dataSourceRange.Address, "$")
            dataSourceRow = CLng(dataSourceSplit(2))
            dataSourceCol = CLng(dataSourceSplit(1))
            
            '获取单元格的值
            dataSourceValue = dataSourceSheet.Cells(dataSourceRow, dataSourceCol).Value
            
            '如果找到匹配的数据，则在对比文件中的相应单元格中填写匹配的结果
            If compareValue = dataSourceValue Then
                compareCell.Offset(0, 1).Value = dataSourceValue '假设将匹配结果写入相邻的 B 列中
                Exit For '找到匹配的数据后退出循环
            End If
        Next dataSourceCell
    Next compareCell
    
    '关闭文件并释放对象
    compareBook.Close SaveChanges:=True
    dataSourceBook.Close SaveChanges:=False
    Set compareSheet = Nothing
    Set dataSourceSheet = Nothing
    Set compareBook = Nothing
    Set dataSourceBook = Nothing
End Sub

请注意，如果数据源表中存在多个相邻的合并单元格，这段代码可能会出现一些问题，需要根据具体情况进行调整。