那个网上的MD5.BAS我研究了下,有严重问题.只好另找了个自已改了下.
在窗体中调用时如下:
set c1=new class 'class 为你存的类模快名
text1.text=md5_string_calc(sourcestring)

类模块源码如下:

Option Explicit

' Visual Basic MD5 Implementation
' Robert Hubley and David Midkiff (mdj2023@hotmail.com)
' modify by simonyan, Support chinese
' Standard MD5 implementation optimised for the Visual Basic environment.
' Conforms to all standards and can be used in digital signature or password
' protection related schemes.

Private Const OFFSET_4 = 4294967296#
Private Const MAXINT_4 = 2147483647
Private State(4) As Long
Private ByteCounter As Long
Private ByteBuffer(63) As Byte
Private Const S11 = 7
Private Const S12 = 12
Private Const S13 = 17
Private Const S14 = 22
Private Const S21 = 5
Private Const S22 = 9
Private Const S23 = 14
Private Const S24 = 20
Private Const S31 = 4
Private Const S32 = 11
Private Const S33 = 16
Private Const S34 = 23
Private Const S41 = 6
Private Const S42 = 10
Private Const S43 = 15
Private Const S44 = 21
Property Get RegisterA() As String
    RegisterA = State(1)
End Property
Property Get RegisterB() As String
    RegisterB = State(2)
End Property

Property Get RegisterC() As String
    RegisterC = State(3)
End Property

Property Get RegisterD() As String
    RegisterD = State(4)
End Property
Public Function Md5_String_Calc(SourceString As String) As String
    MD5Init
    MD5Update LenB(StrConv(SourceString, vbFromUnicode)), StringToArray(SourceString)
    MD5Final
    Md5_String_Calc = GetValues
End Function
Public Function Md5_File_Calc(InFile As String) As String
On Error GoTo errorhandler
GoSub begin

errorhandler
&nb

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