一个很小、很有趣，很有新意的关于javascript的问题

<tr><td><input type=text name=path1></td></tr>
<tr><td><input type=button  name=browser1 value="浏览" onclick="fileupload.click();path1.value=fileupload.value;"></td></tr>
<tr><td><input type=button name=upload1  value="上传"></td></tr>
<div style="display:none"><input type=file name=fileupload></div>
这个问题好解决
<form action="save.asp" method="post" enctype="multipart/form-data" name="form1">
<input type="file" name="file">
<input type="submit" name="Submit" value="提交">
</form>
然后在save.asp里用上传组件或自己写的上传代码进行上传保存。
以下是免组件上传代码（供参考）：
<script RUNAT="SERVER" LANGUAGE="VBSCRIPT">
dim upfile_Sd_Stream
Class upload_Sd
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_Sd_Stream=CreateObject("Adodb.Stream")
upfile_Sd_Stream.mode=3
upfile_Sd_Stream.type=1
upfile_Sd_Stream.open
upfile_Sd_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 SubPrivate Function subString(theStart,theLen)
dim i,c,stemp
upfile_Sd_Stream.Position=theStart-1
stemp=""
for i=1 to theLen
   if upfile_Sd_Stream.EOS then Exit for
   c=ascB(upfile_Sd_Stream.Read(1))
   If c > 127 Then
    if upfile_Sd_Stream.EOS then Exit for
    stemp=stemp&Chr(AscW(ChrB(AscB(upfile_Sd_Stream.Read(1)))&ChrB(c)))
    i=i+1
   else
    stemp=stemp&Chr(c)
   End If
Next
subString=stemp
End functionPrivate Function inString(theStart,varStr)
dim i,j,bt,theLen,str
InString=0
Str=toByte(varStr)
theLen=LenB(Str)
for i=theStart to upfile_Sd_Stream.Size-theLen
   if i>upfile_Sd_Stream.size then exit Function
   upfile_Sd_Stream.Position=i-1
   if AscB(upfile_Sd_Stream.Read(1))=AscB(midB(Str,1)) then
    InString=i
    for j=2 to theLen
      if upfile_Sd_Stream.EOS then
        inString=0
        Exit for
      end if
      if AscB(upfile_Sd_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 FunctionPrivate Sub Class_Terminate
  form.RemoveAll
  file.RemoveAll
  set form=nothing
  set file=nothing
  upfile_Sd_Stream.close
  set upfile_Sd_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_Sd_Stream.position=FileStart-1
    upfile_Sd_Stream.copyto dr,FileSize
    dr.SaveToFile FullPath,2
    dr.Close
    set dr=nothing
    SaveAs=0
  end function
End Class
</script>
<%
dim upload,file,formName,formPath,iCount,filename,fileExt,fileLen
sername=Request.ServerVariables("SERVER_NAME")
scrname=Request.ServerVariables("SCRIPT_NAME")
set upload=new upload_Sd
file_type=upload.form("type")
topic=upload.form("topic")
content=upload.form("content")
formPath=upload.form("filepath")
if formPath<>"" then
if right(formPath,1)<>"/" then formPath=formPath&"/"
iCount=0
for each formName in upload.file
set file=upload.file(formName)
for filelen=len(file.filename) to 1 step -1
fileExt=lcase(mid(file.fileName,filelen,1))+fileExt
if left(fileExt,1)="." then exit for
next
filename=year(now)&month(now)&day(now)&hour(now)&minute(now)&second(now)&fileExt
newfilename=formPath&filename
  if file.FileSize>0 then
  file.SaveAs Server.mappath(newfilename)
  iCount=iCount+1
end if
set file=nothing
next
end if
set upload=nothing
%>

调试易

一个很小、很有趣，很有新意的关于javascript的问题

解决方案 »