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如何计算下载一个文件需要多长时间?
摘要:

<%

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>

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