校准系统时间的VBS代码

'VBS校准系统时间 BY BatMan
Dim objXML, Url, Message
Message = "恭喜你，本机时间非常准确无需校对！"
Set objXML = CreateObject("MSXML2.XmlHttp")
Url = "http://open.baidu.com/special/time/"
objXML.open "GET", Url, False
objXML.send()
Do Until objXML.readyState = 4 : WScript.Sleep 200 : Loop
Dim objStr, LocalDate
objStr = objXML.responseText
LocalDate = Now()
Set objXML = Nothing
Dim objREG, regNum
Set objREG = New RegExp
objREG.Global = True
objREG.IgnoreCase = True
objREG.Pattern = "window.baidu_time\((\d{13,})\)"
regNum = Int(objREG.Execute(objStr)(0).Submatches(0)) /1000
Dim OldDate, BJDate, Num, Num1
OldDate = "1970-01-01 08:00:00"
BJDate = DateAdd("s", regNum, OldDate)
Num = DateDiff("s", LocalDate, BJDate)
If Abs(Num) >=1 Then
Dim DM, DT, TM, objSHELL
DM = DateAdd("S", Num, Now())
DT = DateValue(DM)
TM = TimeValue(DM)
If InStr(Now, "午") Then
Dim Arr, Arr1, h24
Arr = Split(TM, " ")
Arr1 = Split(Arr(1), ":")
h24 = Arr1(0)
If Arr(0) = "下午" Then
h24 = h24 + 12
Else
If h24 = 12 Then h24 = 0
End If
TM = h24 ":" Arr1(1) ":" Arr1(2)
End If
Set objSHELL = CreateObject("Wscript.Shell")
objSHELL.Run "cmd /cdate " DT, False, True
objSHELL.Run "cmd /ctime " TM, False, True
Num1 = Abs(DateDiff("s", Now(), BJDate))
Message = "【校准前】" vbCrLf _
"标准北京时间为：" vbTab BJDate vbCrLf _
"本机系统时间为：" vbTab LocalDate vbCrLf _
"与标准时间相差：" vbTab Abs(Num) "秒" vbCrLf vbCrLf _
"【校准后】" vbCrLf _
"本机系统时间为：" vbTab Now() vbCrLf _
"与标准时间相差：" vbTab Num1 "秒"
Set objSHELL = Nothing
End If
WScript.Echo Message