itemid,ID,
username,会员名,
id,日期,
ip,IP,
ip_pc,电脑IP,
ip_mb,手机IP,
pv,PV,
pv_pc,电脑PV,
pv_mb,手机PV,
rb,爬虫PV,
rb_pc,电脑爬虫PV,
rb_mb,手机爬虫PV,