如何将如下代码转成vb 中的类模块?

acheng 2005-07-11 11:09:41
如何将如下代码转成vb 中的类模块?

**************************************************************

<!--稻香老农制作http://www.5xSoft.com/-->
<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT>

dim upfile_5xSoft_Stream

Class upload_5xSoft

dim Form,File,Version

Private Sub Class_Initialize
dim iStart,iFileNameStart,iFileNameEnd,iEnd,vbEnter,iFormStart,iFormEnd,theFile
dim strDiv,mFormName,mFormValue,mFileName,mFileSize,mFilePath,iDivLen,mStr
Version=""
if Request.TotalBytes<1 then Exit Sub
set Form=CreateObject("Scripting.Dictionary")
set File=CreateObject("Scripting.Dictionary")
set upfile_5xSoft_Stream=CreateObject("Adodb.Stream")
upfile_5xSoft_Stream.mode=3
upfile_5xSoft_Stream.type=1
upfile_5xSoft_Stream.open
upfile_5xSoft_Stream.write Request.BinaryRead(Request.TotalBytes)

vbEnter=Chr(13)&Chr(10)
iDivLen=inString(1,vbEnter)+1
strDiv=subString(1,iDivLen)
iFormStart=iDivLen
iFormEnd=inString(iformStart,strDiv)-1
while iFormStart < iFormEnd
iStart=inString(iFormStart,"name=""")
iEnd=inString(iStart+6,"""")
mFormName=subString(iStart+6,iEnd-iStart-6)
iFileNameStart=inString(iEnd+1,"filename=""")
if iFileNameStart>0 and iFileNameStart<iFormEnd then
iFileNameEnd=inString(iFileNameStart+10,"""")
mFileName=subString(iFileNameStart+10,iFileNameEnd-iFileNameStart-10)
iStart=inString(iFileNameEnd+1,vbEnter&vbEnter)
iEnd=inString(iStart+4,vbEnter&strDiv)
if iEnd>iStart then
mFileSize=iEnd-iStart-4
else
mFileSize=0
end if
set theFile=new FileInfo
theFile.FileName=getFileName(mFileName)
theFile.FilePath=getFilePath(mFileName)
theFile.FileSize=mFileSize
theFile.FileStart=iStart+4
theFile.FormName=FormName
file.add mFormName,theFile
else
iStart=inString(iEnd+1,vbEnter&vbEnter)
iEnd=inString(iStart+4,vbEnter&strDiv)

if iEnd>iStart then
mFormValue=subString(iStart+4,iEnd-iStart-4)
else
mFormValue=""
end if
form.Add mFormName,mFormValue
end if

iFormStart=iformEnd+iDivLen
iFormEnd=inString(iformStart,strDiv)-1
wend
End Sub

Private Function subString(theStart,theLen)
dim i,c,stemp
upfile_5xSoft_Stream.Position=theStart-1
stemp=""
for i=1 to theLen
if upfile_5xSoft_Stream.EOS then Exit for
c=ascB(upfile_5xSoft_Stream.Read(1))
If c > 127 Then
if upfile_5xSoft_Stream.EOS then Exit for
stemp=stemp&Chr(AscW(ChrB(AscB(upfile_5xSoft_Stream.Read(1)))&ChrB(c)))
i=i+1
else
stemp=stemp&Chr(c)
End If
Next
subString=stemp
End function

Private Function inString(theStart,varStr)
dim i,j,bt,theLen,str
InString=0
Str=toByte(varStr)
theLen=LenB(Str)
for i=theStart to upfile_5xSoft_Stream.Size-theLen
if i>upfile_5xSoft_Stream.size then exit Function
upfile_5xSoft_Stream.Position=i-1
if AscB(upfile_5xSoft_Stream.Read(1))=AscB(midB(Str,1)) then
InString=i
for j=2 to theLen
if upfile_5xSoft_Stream.EOS then
inString=0
Exit for
end if
if AscB(upfile_5xSoft_Stream.Read(1))<>AscB(MidB(Str,j,1)) then
InString=0
Exit For
end if
next
if InString<>0 then Exit Function
end if
next
End Function

Private Sub Class_Terminate
form.RemoveAll
file.RemoveAll
set form=nothing
set file=nothing
upfile_5xSoft_Stream.close
set upfile_5xSoft_Stream=nothing
End Sub


Private function GetFilePath(FullPath)
If FullPath <> "" Then
GetFilePath = left(FullPath,InStrRev(FullPath, "\"))
Else
GetFilePath = ""
End If
End function

Private function GetFileName(FullPath)
If FullPath <> "" Then
GetFileName = mid(FullPath,InStrRev(FullPath, "\")+1)
Else
GetFileName = ""
End If
End function

Private function toByte(Str)
dim i,iCode,c,iLow,iHigh
toByte=""
For i=1 To Len(Str)
c=mid(Str,i,1)
iCode =Asc(c)
If iCode<0 Then iCode = iCode + 65535
If iCode>255 Then
iLow = Left(Hex(Asc(c)),2)
iHigh =Right(Hex(Asc(c)),2)
toByte = toByte & chrB("&H"&iLow) & chrB("&H"&iHigh)
Else
toByte = toByte & chrB(AscB(c))
End If
Next
End function
End Class


Class FileInfo
dim FormName,FileName,FilePath,FileSize,FileStart
Private Sub Class_Initialize
FileName = ""
FilePath = ""
FileSize = 0
FileStart= 0
FormName = ""
End Sub

Public function SaveAs(FullPath)
dim dr,ErrorChar,i
SaveAs=1
if trim(fullpath)="" or FileSize=0 or FileStart=0 or FileName="" then exit function
if FileStart=0 or right(fullpath,1)="/" then exit function
set dr=CreateObject("Adodb.Stream")
dr.Mode=3
dr.Type=1
dr.Open
upfile_5xSoft_Stream.position=FileStart-1
upfile_5xSoft_Stream.copyto dr,FileSize
dr.SaveToFile FullPath,2
dr.Close
set dr=nothing
SaveAs=0
end function
End Class
</SCRIPT>
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acheng 2005-07-14
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51365133(渊海) :

谢谢你的帮助·我需要转的是以下代码:

<SCRIPT RUNAT=SERVER LANGUAGE=VBSCRIPT>
Dim UploadSizeLimit

'********************************** GetUpload **********************************
'.Name name of the form field (<Input Name="..." Type="File,...">)
'.ContentDisposition = Content-Disposition of the form field
'.FileName = Source file name for <input type=file>
'.ContentType = Content-Type for <input type=file>
'.Value = Binary value of the source field.
'.Length = Len of the binary data field
Function GetUpload()
Dim Result
Set Result = Nothing
If Request.ServerVariables("REQUEST_METHOD") = "POST" Then 'Request method must be "POST"
Dim CT, PosB, Boundary, Length, PosE
CT = Request.ServerVariables("HTTP_Content_Type") 'reads Content-Type header
'response.write CT
'application/x-www-form-urlencoded
If LCase(Left(CT, 19)) = "multipart/form-data" Then 'Content-Type header must be "multipart/form-data"
'This is upload request.
'Get the boundary and length from Content-Type header
PosB = InStr(LCase(CT), "boundary=") 'Finds boundary
If PosB > 0 Then Boundary = Mid(CT, PosB + 9) 'Separetes boundary
Length = CLng(Request.ServerVariables("HTTP_Content_Length")) 'Get Content-Length header
if "" & UploadSizeLimit<>"" then
UploadSizeLimit = clng(UploadSizeLimit)
if Length > UploadSizeLimit then
' on error resume next 'Clears the input buffer
' response.AddHeader "Connection", "Close"
' on error goto 0
Request.BinaryRead(Length)
Err.Raise 2, "GetUpload", "Upload size " & FormatNumber(Length,0) & "B exceeds limit of " & FormatNumber(UploadSizeLimit,0) & "B"
exit function
end if
end if

If Length > 0 And Boundary <> "" Then 'Are there required informations about upload ?
Boundary = "--" & Boundary
Dim Head, Binary
Binary = Request.BinaryRead(Length) 'Reads binary data from client

'Retrieves the upload fields from binary data
Set Result = SeparateFields(Binary, Boundary)
Binary = Empty 'Clear variables
Else
Err.Raise 10, "GetUpload", "Zero length request ."
End If
Else
Err.Raise 11, "GetUpload", "No file sent."
End If
Else
Err.Raise 1, "GetUpload", "Bad request method."
End If
Set GetUpload = Result
End Function

'********************************** SeparateFields **********************************
'This function retrieves the upload fields from binary data and retuns the fields as array
'Binary is safearray of all raw binary data from input.
Function SeparateFields(Binary, Boundary)
Dim PosOpenBoundary, PosCloseBoundary, PosEndOfHeader, isLastBoundary
Dim Fields
Boundary = StringToBinary(Boundary)

PosOpenBoundary = InstrB(Binary, Boundary)
PosCloseBoundary = InstrB(PosOpenBoundary + LenB(Boundary), Binary, Boundary, 0)

Set Fields = CreateObject("Scripting.Dictionary")

Do While (PosOpenBoundary > 0 And PosCloseBoundary > 0 And Not isLastBoundary)
'Header and file/source field data
Dim HeaderContent, FieldContent
'Header fields
Dim Content_Disposition, FormFieldName, SourceFileName, Content_Type
'Helping variables
Dim Field, TwoCharsAfterEndBoundary
'Get end of header
PosEndOfHeader = InstrB(PosOpenBoundary + Len(Boundary), Binary, StringToBinary(vbCrLf + vbCrLf))

'Separates field header
HeaderContent = MidB(Binary, PosOpenBoundary + LenB(Boundary) + 2, PosEndOfHeader - PosOpenBoundary - LenB(Boundary) - 2)

'Separates field content
FieldContent = MidB(Binary, (PosEndOfHeader + 4), PosCloseBoundary - (PosEndOfHeader + 4) - 2)

'Separates header fields from header
GetHeadFields BinaryToString(HeaderContent), Content_Disposition, FormFieldName, SourceFileName, Content_Type

'Create one field and assign parameters
Set Field = CreateUploadField()
Field.Name = FormFieldName
Field.ContentDisposition = Content_Disposition
Field.FilePath = SourceFileName
Field.FileName = GetFileName(SourceFileName)
Field.ContentType = Content_Type
Field.Value = FieldContent
Field.Length = LenB(FieldContent)

Fields.Add FormFieldName, Field

'Is this ending boundary
TwoCharsAfterEndBoundary = BinaryToString(MidB(Binary, PosCloseBoundary + LenB(Boundary), 2))
'Binary.Mid(PosCloseBoundary + Len(Boundary), 2).String
isLastBoundary = TwoCharsAfterEndBoundary = "--"
If Not isLastBoundary Then 'This is not ending boundary - go to next form field.
PosOpenBoundary = PosCloseBoundary
PosCloseBoundary = InStrB(PosOpenBoundary + LenB(Boundary), Binary, Boundary )
End If
Loop
Set SeparateFields = Fields
End Function

'********************************** Utilities **********************************
Function BinaryToString(str)
strto = ""
for i=1 to lenb(str)
if AscB(MidB(str, i, 1)) > 127 then
strto = strto & chr(Ascb(MidB(str, i, 1))*256+Ascb(MidB(str, i+1, 1)))
i = i + 1
else
strto = strto & Chr(AscB(MidB(str, i, 1)))
end if
next
BinaryToString=strto

End Function

Function StringToBinary(String)
Dim I, B
For I=1 to len(String)
B = B & ChrB(Asc(Mid(String,I,1)))
Next
StringToBinary = B
End Function

'Separates header fields from upload header
Function GetHeadFields(ByVal Head, Content_Disposition, Name, FileName, Content_Type)
Content_Disposition = LTrim(SeparateField(Head, "content-disposition:", ";"))
Name = (SeparateField(Head, "name=", ";")) 'ltrim
If Left(Name, 1) = """" Then Name = Mid(Name, 2, Len(Name) - 2)
FileName = (SeparateField(Head, "filename=", ";")) 'ltrim
If Left(FileName, 1) = """" Then FileName = Mid(FileName, 2, Len(FileName) - 2)
Content_Type = LTrim(SeparateField(Head, "content-type:", ";"))
End Function

'Separets one filed between sStart and sEnd
Function SeparateField(From, ByVal sStart, ByVal sEnd)
Dim PosB, PosE, sFrom
sFrom = LCase(From)
PosB = InStr(sFrom, sStart)
If PosB > 0 Then
PosB = PosB + Len(sStart)
PosE = InStr(PosB, sFrom, sEnd)
If PosE = 0 Then PosE = InStr(PosB, sFrom, vbCrLf)
If PosE = 0 Then PosE = Len(sFrom) + 1
SeparateField = Mid(From, PosB, PosE - PosB)
Else
SeparateField = Empty
End If
End Function

'Separetes file name from the full path of file
Function GetFileName(FullPath)
Dim Pos, PosF
PosF = 0
For Pos = Len(FullPath) To 1 Step -1
Select Case Mid(FullPath, Pos, 1)
Case "/", "\": PosF = Pos + 1: Pos = 0
End Select
Next
If PosF = 0 Then PosF = 1
GetFileName = Mid(FullPath, PosF)
End Function
</SCRIPT>
<SCRIPT RUNAT=SERVER LANGUAGE=JSCRIPT>
//The function creates Field object.
function CreateUploadField(){ return new uf_Init() }
function uf_Init(){
this.Name = null
this.ContentDisposition = null
this.FileName = null
this.FilePath = null
this.ContentType = null
this.Value = null
this.Length = null
}
</SCRIPT>

acheng 2005-07-14
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还是自己丰衣足食。。。。。。

51365133 2005-07-12
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你在看下 类的东西,很简单的,改几处就可以了,好好看下,如果还是不行的话,我帮你转。
fishmans 2005-07-12
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不就是骡子跟马的区别?
这都不会?
daisy8675 2005-07-11
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哈,20分,不帮你转,自己转.

这上面的代码实在太明显了也要别人帮你写-_-####
源码链接: https://pan.quark.cn/s/8ddf8a1c92f9 **libcurl用于获取大型文件**libcurl作为一个开源的C语言库,提供了一系列的API来处理与URL相关的任务,涵盖了HTTP、FTP、SMTP等多种网络协议的应用。在执行大型文件的下载操作时,libcurl展现出卓越的性能表现和高度的灵活性,能够高效地管理大文件传输过程,有效预防内存溢出及其他潜在问题。**libcurl的基础操作**libcurl的基础应用包括以下几个环节:1. **初始化**:需要借助`curl_global_init()`函数来启动libcurl的工作环境。2. **建立会话句柄**:通过`curl_easy_init()`函数创建一个会话句柄,该句柄将用于后续所有的操作流程。3. **配置选项**:运用`curl_easy_setopt()`函数来设定多种参数,例如目标URL、超时时间、重试次数以及数据写入的回调函数等。4. **执行请求**:调用`curl_easy_perform()`函数来实施下载操作。5. **释放资源**:使用`curl_easy_cleanup()`函数来释放已经占用的资源。**获取大型文件时的重要设置**1. **数据写入回调函数**:在处理大型文件下载时,通常不希望一次性将整个文件载入内存。可以配置`CURLOPT_WRITEFUNCTION`选项,指定一个回调函数来处理接收到的数据片段,这样libcurl在接收到数据时会调用该函数,使得我们可以按需将数据写入文件或缓冲区。2. **缓冲策略**:可以设定缓冲区的大小(比如,通过`CURLOPT_BUFFERSIZE`),来控制每次接收数据的数量,从而优化内存...
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