我在用插件上传图片并写入数据库时，图片可以传到指定的位置，
但不能写入数据库了，提示如下：

Form was submitted with no ENCTYPE="multipart/form-data"
Please correct and try again

请问这是为什么呢？

且我的
该上传插件里开始有几句，我不太明白，好像出的就是这里的错。如下：

'Get the boundary
PosBeg = 1
PosEnd = InstrB(PosBeg,RequestBin,getByteString(chr(13)))
if PosEnd = 0 then
Response.Write "Form was submitted with no ENCTYPE=""multipart/form-data""
"
Response.Write "Please correct the form attributes and try again."
Response.End
end if