如何计算下载一个文件需要多长时间？

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我是靠谱客的博主繁荣招牌，最近开发中收集的这篇文章主要介绍如何计算下载一个文件需要多长时间？，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

<%
Function DownloadTime(intFileSize, strModemType)
Dim TimeInSeconds, ModemSpeed, strDownloadTime, AppendString
Dim intYears, intWeeks, intDays
Dim intHours, intMinutes, intSeconds
intYears = 0
intWeeks = 0
intDays = 0
intHours = 0
intMinutes = 0
intSeconds = 0
strDownloadTime = ""
Select Case strModemType
Case "Cable"
ModemSpeed = 400000
Case "56kbps"
ModemSpeed = 7000
Case "33.6kbps"
ModemSpeed = 4200
Case "28.8kbps"
ModemSpeed = 3600
End Select
TimeInSeconds = int(intFileSize / ModemSpeed)
' 准确地说,1年＝365.25天.
If (Int(TimeInSeconds / 31471200) <> 0) Then intYears = Int(TimeInSeconds / 31449600)
If ((Int(TimeInSeconds / 604800) Mod 52) <> 0) Then intWeeks = Int(TimeInSeconds / 604800) Mod 52
If ((Int(TimeInSeconds / 86400) Mod 7) <> 0) Then intDays = Int(TimeInSeconds / 86400) Mod 7
If TimeInSeconds >= 3600 Then intHours = Int(TimeInSeconds / 3600) Mod 24
If TimeInSeconds >= 60 Then intMinutes = Int(TimeInSeconds / 60) Mod 60
If TimeInSeconds >= 0 Then intSeconds = Int(TimeInSeconds) Mod 60
If intYears <> 0 Then
strDownloadTime = strDownloadTime & intYears & "年" & AppendString & ", "
End If
If intWeeks <> 0 Then
strDownloadTime = strDownloadTime & intWeeks & "周" & AppendString & ", "
End If
If intDays <> 0 Then
strDownloadTime = strDownloadTime & intDays & "日" & AppendString & ", "
End If
If intHours <> 0 Then
strDownloadTime = strDownloadTime & intHours & "小时" & AppendString & ", "
End If
If intMinutes <> 0 Then
strDownloadTime = strDownloadTime & intMinutes & "分" & AppendString
End If
If ((intYears = 0) And (intWeeks = 0) And (intDays = 0) And (intHours = 0)) Then
If intMinutes > 0 Then
strDownloadTime = strDownloadTime & ", " & intSeconds & "秒" & AppendString
Else
strDownloadTime = strDownloadTime & intSeconds & "秒" & AppendString
End If
End If
DownloadTime = strDownloadTime
End Function
%>
<html>
<body>
撼雪喷云提示:您下载这个文件一共花费了<%=DownloadTime(123456,Cable)%>.
</body></html>