ASP quickly get remote HTTP file size

Source: Internet
Author: User
Tags end file size range return

The following is a reference fragment:
Dim url,asize
URL = "Http://"
Asize = Getremotefilesize (URL)
Response.Write Url & "’---------------------------------------------------
' Function: ASP get remote file size
' Parameter: Url destination Address
' Return: Return array 0: File byte size 1: Formatted file size
Function getremotefilesize (URL)
Dim obj,a (1), R
Set obj = CreateObject ("MSXML2.") XMLHTTP ")
Obj. Open ' get ', url, False
Obj.setrequestheader "Range", "Bytes=-1"
r = Split (obj. getResponseHeader ("Content-range") & "/0", "/")
Set OBJ = Nothing
A (0) = CLng (R (1))
A (1) = a (0)/1024
If A (1) > 1024 Then
A (1) = Round (A (1)/1024,2) & "MB"
A (1) = Round (A (1), 2) & "KB"
End If
Getremotefilesize = A
End Function

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