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[求助] Open获取文件二进制数据的问题(字符编码)

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发表于 2019-10-5 13:00 | 显示全部楼层 |阅读模式
本帖最后由 laiwatch 于 2019-10-5 13:02 编辑
  1. Option Base 0

  2. Public Type MD5_CTX
  3.     z(1) As Long
  4.     Buf(3) As Long
  5.     inc(63) As Byte
  6.     digest(15) As Byte
  7. End Type

  8. Public Declare Sub MD5Init Lib "Cryptdll.dll" (ByVal pContex As Long)
  9. Public Declare Sub MD5Final Lib "Cryptdll.dll" (ByVal pContex As Long)
  10. Public Declare Sub MD5Update Lib "Cryptdll.dll" (ByVal pContex As Long, ByVal lPtr As Long, ByVal nSize As Long)

  11. Public Function ConvBytesToBinaryString(bytesIn() As Byte) As String
  12.     Dim z As Long
  13.     Dim nSize As Long
  14.     Dim strRet As String
  15.    
  16.     nSize = UBound(bytesIn)
  17.     For z = 0 To nSize
  18.          strRet = strRet & Right$("0" & Hex(bytesIn(z)), 2)
  19.     Next
  20.     ConvBytesToBinaryString = strRet
  21. End Function

  22. Public Function GetMD5Hash(bytesIn() As Byte) As Byte()
  23.     Dim ctx As MD5_CTX
  24.     Dim nSize As Long
  25.    
  26.     nSize = UBound(bytesIn) + 1
  27.    
  28.     MD5Init VarPtr(ctx)
  29.     MD5Update ByVal VarPtr(ctx), ByVal VarPtr(bytesIn(0)), nSize
  30.     MD5Final VarPtr(ctx)
  31.    
  32.     GetMD5Hash = ctx.digest
  33. End Function

  34. Public Function GetMD5Hash_Bytes(bytesIn() As Byte) As String
  35.     GetMD5Hash_Bytes = ConvBytesToBinaryString(GetMD5Hash(bytesIn))
  36. End Function

  37. Public Function GetMD5Hash_String(ByVal strIn As String) As String
  38.     GetMD5Hash_String = GetMD5Hash_Bytes(StrConv(strIn, vbFromUnicode))
  39. End Function

  40. Public Function GetMD5Hash_File(ByVal strFile As String) As String
  41.     Dim lFile As Long
  42.     Dim bytes() As Byte
  43.     Dim lSize As Long
  44. '    Dim Buf() As Byte
  45. '   Debug.Print InStr(strFile, "?")
  46. '    Dim sk As New ADODB.Stream
  47.    
  48. '    Dim iRe As New ADODB.Recordset
  49.   ' Cells(16, 3) = StrConv(strFile, vbNarrow)
  50.     lSize = fso.GetFile(strFile).Size
  51. '    strFilea = Replace(strFile, "?", ChrW(8226))
  52.     If (lSize) Then
  53.         lFile = FreeFile
  54.         ReDim bytes(lSize - 1)
  55. '        Debug.Print fso.GetAbsolutePathName(strFile)
  56.         Open strFile For Binary Access Read As lFile
  57. ''        With sk
  58. ''        .Type = adTypeBinary
  59. ''        .Open
  60. ''        .LoadFromFile (strFile)
  61. ''        End With
  62.         Get lFile, , bytes
  63. ''       Get sk, , bytes
  64.         Close lFile
  65. 'bytes = iRe
  66. 'k = lSize - 1
  67. 'iRe.Open
  68. 'ReDim arr(0 To lSize - 1)
  69. 'For I = 0 To iRe.RecordCount
  70. 'arr(I) = iRe
  71. 'iRe.MoveNext
  72. 'Next
  73. '
  74. 'iRe.Close
  75. 'sk.Close
  76. 't = Timer
  77. '  Dim I As Long
  78. '  DoEvents
  79. '  With CreateObject("ADODB.Stream")
  80. '    .Mode = 3: .Type = 1: .Open: .LoadFromFile strFile
  81. '    .Mode = 3
  82. '    .Type = adTypeBinary
  83. '    .Open
  84. '    .LoadFromFile (strFile)
  85. '    ReDim Buf(lSize - 1)
  86. '    For I = 0 To lSize - 1: Buf(I) = AscB(.Read(1)): Next
  87. '    For I = 0 To lSize - 1
  88. '    Buf(I) = AscB(.Read(1))
  89. 'Buf(I) = AscB(.Read(1))
  90. '    Next
  91. '    .Close
  92. '  End With
  93. '  MsgBox Format(Timer - t, "0.0000")
  94. 'ReadBinary = Buf
  95.         GetMD5Hash_File = GetMD5Hash_Bytes(bytes)
  96. 'GetMD5Hash_File = GetMD5Hash_Bytes(Buf)
  97.     End If
  98.    
  99. End Function

  100. Sub kjii()
  101. 'Dim arr(1) As String
  102. 'arr(1) = Range("e10").Value
  103. Cells(15, 3) = GetMD5Hash_File(Range("e10").Value)

  104. End Sub

  105. 'Function ReadBinary(FileName)
  106. '  Dim I As Long
  107. '  With CreateObject("ADODB.Stream")
  108. '    .Mode = 3: .Type = 1: .Open: .LoadFromFile FileName
  109. '    ReDim Buf(.Size - 1)
  110. '    For I = 0 To .Size - 1: Buf(I) = AscB(.Read(1)): Next
  111. '    .Close
  112. '  End With
  113. '  ReadBinary = Buf
  114. 'End Function
复制代码
在这句"Open strFile For Binary Access Read As lFile"这里,当strFile变量包含一些其他的字符时候,将会出现错误
如strFile="C:\Users\Master\Desktop\Åúá¿éú2ú1¤×÷2¾\[大家网]Python基础教程(第2版)[www.TopSage.com].pdf"就会出现"文件名或文件号错误"的问题
字符.zip (15.89 KB, 下载次数: 1)
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