//下面这句是精准地计算毫秒时间差
s = Plugin.GetSysInfo.GetTime()
xs=int(s/1000/60/60)
fz=int(s/1000/60)-xs*60
m=Clng(s/1000)-fz*60-xs*60*60
Msgbox "您的操作系统从启动到目前的时间：" & xs & "小时" & fz & "分钟" & m & "秒"

//下面这句是精准地计算毫秒时间差
Plugin s = GetSysInfo.GetTime()
xs=int(s/1000/60/60)
fz=int(s/1000/60)-xs*60
m=Clng(s/1000)-fz*60-xs*60*60
Msgbox "您的操作系统从启动到目前的时间：" & xs & "小时" & fz & "分钟" & m & "秒"