下面是一个图片上传的小程序,但如何限制图片的大小和格式呢
<%response.buffer=true
dim id,img
formsize=request.totalbytes
formdata=request.binaryread(formsize)
bncrlf=chrB(13)&chrB(10)
divider=leftB(formdata,clng(instrb(formdata,bncrlf))-1)
datastart=instrb(formdata,bncrlf&bncrlf)+4
dataend=instrb(datastart+1,formdata,divider)-datastart
mydata=midb(formdata,datastart,dataend)
set rs=server.CreateObject ("adodb.recordset")
sql="select * from company where postid='"&session("postid")&"'"
rs.open sql,conn,2,3
rs("logo").appendchunk mydata
rs.update
response.write("图片上传成功!")
%>