如何计算每天的平均反复访问人数

< % startdate=DateDiff("d",Now,"01/01/1990")
if strdate < 0 then startdate=startdate*-1
avgvpd=Int((usercnt)/startdate) % >
显示结果
< % response.write(avgvpd) % >
that is it.this page have been viewed since November 10,1998