把文章内容中涉及到的图片自动保存到本地服务器

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''函数功能：把文章内容中涉及到的图片自动保存到本地服务器。（注意：请先在目录下创建tempfile目录，用来保存临时图片）
''作者：小灰
''QQ:103895
''主页:
''2004.9.13
''转载或使用请不要删除上面这些信息。谢谢！

const savepath="tempfile/"

function myreplace(str)
newstr=str
set objregEx = new RegExp
objregEx.IgnoreCase = true
objregEx.Global = true
objregEx.Pattern = "(.+?)\.(jpg|gif|png|bmp)"
set matches = objregEx.execute(str)
for each match in matches
newstr=replace(newstr,match.value,saveimg(match.value))
next
myreplace=newstr
end function

function saveimg(url)
temp=split(url,".")
randomize
ranNum=int(90000*rnd)+10000
filename=year(now)&month(now)&day(now)&hour(now)&minute(now)&second(now)&ranNum&"."&temp(ubound(temp))
set xmlhttp=server.createobject("Microsoft.XMLHTTP")
xmlhttp.open "get",url,false
xmlhttp.send
if xmlhttp.status<>200 then
saveimg=""
else
img=xmlhttp.ResponseBody
set objAdostream=server.createobject("ADODB.Stream")
objAdostream.Open()
objAdostream.type=1
objAdostream.Write(img)
objAdostream.SaveToFile(server.mappath("./"&savepath&filename))
objAdostream.SetEOS
set objAdostream=nothing
saveimg=savepath&filename
end if
set xmlhttp=nothing
end function
%>