如何判断用户是否非正常离开聊天室？  total=application("AllPeople")'聊天总人数.  aryHuman=split(total,";")  fori=lbound(aryHuman)toubound(aryHuman)-1  ifapplication("user"&i)="online"then  ifint(timer)-int(application("TimeBegin"&i))>120then  applicati...