二进制访问读取查找特定字符串

Question

Sub ReadEntireFileAndPlaceOnWorksheet()
  Dim X As Long, FileNum As Long, TotalFile As String, FileName As String, Result As Variant, Lines() As String
  FileName = "C:\Users\Mohamed samatar.DSSE-EMEA\Documents\EQVL\Test\WHVP113_140910_TTinsug_TT_299Data_PUoff_WOT-TakeOff_NotKickDown_gearD_FelLambda.dat"
  FileNum = FreeFile
  Open FileName For Binary As #FileNum
    TotalFile = Space(LOF(FileNum))
    Get #FileNum, , TotalFile
  Close #FileNum
  Lines = Split(TotalFile, vbNewLine)
  ReDim Result(1 To UBound(Lines) + 1, 1 To 1)
  For X = 1 To UBound(Result)
    Result(X, 1) = Lines(X - 1)
  Next
  Range("A1").Resize(UBound(Result)) = Result
End Sub

我有一些 .dat 格式的文件，这些文件包含一些有价值的信息，但是它们可能非常大，尝试在记事本中打开每个文件并提取我需要的信息根本没有效率，因为它需要记事本很长一段时间打开每个文件。我遇到过这个 Binary Access Read 函数，它显然可以打开大文件并允许您非常快速地阅读它们。我想知道如何查找/获取特定行的信息，您可以使用类似的功能来说明查找功能，还是有另一种获取信息的方法，这就是我目前所拥有的。它所做的只是告诉我文件类型，基本上我希望能够搜索特定的字符串值，或者如果我可以将所有文本转储到 EXCEL 中并从那里进行排序，任何指导都是有用的。

Answer 1

这里有两个例子。第一个读取文件中的每一行并打印到从单元格 A1 开始的工作表，然后向下到 A2、A3 等，每个 line:

Option Explicit
Sub testReadLine()
    Dim filename As String
    Dim FF As Integer
    Dim line As String
    Dim i as Long

    filename = "C:\yourfilename.txt" '### MODIFY AS NEEDED

    FF = FreeFile
    Open filename For Input As FF
    Do While Not EOF(FF)
        Line Input #FF, line

        Range("A1").Offset(i).Value = i
        i = i + 1
    Loop
    Close FF

End Sub

第二个例子将整个文件读入一个字符串变量，然后使用Split函数将该字符串转换为字符串数组，根据行分隔符（假设为vbCRLF).

这个应该更快，当然一旦你在 Excel 中有了数据，你就可以使用正常的 excel 功能，如 "Find" 等

Option Explicit
Option Base 0
Sub testReadAll()

    Dim filename As String
    Dim FF As Integer
    Dim text As String
    Dim buffer As Long
    Dim txtArray() As String

    filename = "C:\yourfilename.txt"  '### MODIFY AS NEEDED

    FF = FreeFile
    Open filename For Input As FF
    buffer = LOF(FF)
    text = Input(buffer, FF)
    Close FF

    'Put the text into an array, split by the LineFeed character:
    txtArray = Split(text, vbCrLf)

    'Print to the worksheet:
    Range("A1").Resize(Ubound(txtArray)).Value = Application.Transpose(txtArray)

End Sub

二进制访问读取查找特定字符串

Binary access read find specific string

vba

binaryfiles

find