asp 获取图片大小
如题，求助。

[解决办法]
楼主 直接度娘搜下吧，这方面的代码很多的
参考下

VBScript code

<%Class ImgWHInfo '获取图片宽度和高度的类，支持JPG，GIF，PNG，BMP     Dim ASO     Private Sub Class_Initialize         Set ASO=Server.CreateObject("ADODB.Stream")         ASO.Mode=3         ASO.Type=1         ASO.Open     End Sub     Private Sub Class_Terminate         Err.Clear         Set ASO=Nothing     End Sub      Private Function Bin2Str(Bin)         Dim I, Str         For I=1 To LenB(Bin)             clow=MidB(Bin,I,1)             If ASCB(clow)<128 Then                 Str = Str & Chr(ASCB(clow))             Else                 I=I+1                 If I <= LenB(Bin) Then Str = Str & Chr(ASCW(MidB(Bin,I,1)&clow))             End If         Next         Bin2Str = Str     End Function           Private Function Num2Str(Num,Base,Lens)         Dim Ret         Ret = ""         While(Num>=Base)             Ret = (Num Mod Base) & Ret             Num = (Num - Num Mod Base)/Base         Wend         Num2Str = Right(String(Lens,"0") & Num & Ret,Lens)     End Function           Private Function Str2Num(Str,Base)          Dim Ret,I         Ret = 0          For I=1 To Len(Str)              Ret = Ret *base + Cint(Mid(Str,I,1))          Next          Str2Num=Ret      End Function            Private Function BinVal(Bin)          Dim Ret,I         Ret = 0          For I = LenB(Bin) To 1 Step -1              Ret = Ret *256 + AscB(MidB(Bin,I,1))          Next          BinVal=Ret      End Function            Private Function BinVal2(Bin)          Dim Ret,I         Ret = 0          For I = 1 To LenB(Bin)              Ret = Ret *256 + AscB(MidB(Bin,I,1))          Next          BinVal2=Ret      End Function            Private Function GetImageSize(filespec)         Dim bFlag         Dim Ret(3)          ASO.LoadFromFile(filespec)          bFlag=ASO.Read(3)          Select Case Hex(binVal(bFlag))          Case "4E5089":              ASO.Read(15)              ret(0)="PNG"              ret(1)=BinVal2(ASO.Read(2))              ASO.Read(2)              ret(2)=BinVal2(ASO.Read(2))          Case "464947":              ASO.read(3)              ret(0)="gif"              ret(1)=BinVal(ASO.Read(2))              ret(2)=BinVal(ASO.Read(2))          Case "535746":              ASO.read(5)              binData=ASO.Read(1)              sConv=Num2Str(ascb(binData),2 ,8)              nBits=Str2Num(left(sConv,5),2)              sConv=mid(sConv,6)              While(len(sConv)<nBits*4)                  binData=ASO.Read(1)                  sConv=sConv&Num2Str(AscB(binData),2 ,8)              Wend              ret(0)="SWF"              ret(1)=Int(Abs(Str2Num(Mid(sConv,1*nBits+1,nBits),2)-Str2Num(Mid(sConv,0*nBits+1,nBits),2))/20)              ret(2)=Int(Abs(Str2Num(Mid(sConv,3*nBits+1,nBits),2)-Str2Num(Mid(sConv,2*nBits+1,nBits),2))/20)          Case "FFD8FF":              Do               Do: p1=binVal(ASO.Read(1)): Loop While p1=255 And Not ASO.EOS              If p1>191 And p1<196 Then Exit Do Else ASO.read(binval2(ASO.Read(2))-2)              Do:p1=binVal(ASO.Read(1)):Loop While p1<255 And Not ASO.EOS              Loop While True              ASO.Read(3)              ret(0)="JPG"              ret(2)=binval2(ASO.Read(2))              ret(1)=binval2(ASO.Read(2))          Case Else:              If left(Bin2Str(bFlag),2)="BM" Then                  ASO.Read(15)                  ret(0)="BMP"                  ret(1)=binval(ASO.Read(4))                  ret(2)=binval(ASO.Read(4))              Else                      ret(0)=""              End If          End Select          ret(3)="width=""" & ret(1) &""" height=""" & ret(2) &""""          getimagesize=ret      End Function            Public Function imgW(IMGPath)         Dim FSO,IMGFile,FileExt,Arr         Set FSO = Server.CreateObject("Scripting.FileSystemObject")          If (FSO.FileExists(IMGPath)) Then              Set IMGFile = FSO.GetFile(IMGPath)              FileExt=FSO.GetExtensionName(IMGPath)              Select Case FileExt                  Case "gif","bmp","jpg","png":                  Arr=GetImageSize(IMGFile.Path)                  imgW = Arr(1)              End Select              Set IMGFile=Nothing          Else             imgW = 0         End If              Set FSO=Nothing      End Function           Public Function imgH(IMGPath)         Dim FSO,IMGFile,FileExt,Arr         Set FSO = server.CreateObject("Scripting.FileSystemObject")          If (FSO.FileExists(IMGPath)) Then              Set IMGFile = FSO.GetFile(IMGPath)              FileExt=FSO.GetExtensionName(IMGPath)              Select Case FileExt                  Case "gif","bmp","jpg","png":                  Arr=getImageSize(IMGFile.Path)                  imgH = Arr(2)              End Select              Set IMGFile=Nothing          Else             imgH = 0          End If              Set FSO=Nothing      End Function End Class%><%    IMGPath="1.gif"    Set PP=New ImgWHInfo    pic_width = PP.imgW(Server.Mappath(IMGPath))    pic_height = PP.imgH(Server.Mappath(IMGPath))    Set PP=Nothing%>宽：<%=pic_width%>高：<%=pic_height%>