一周内的
sqlTotal="select Count(*) from Count where DATEDIFF('d',time,Now())<=7"

昨天
sqlTotal="select Count(*) from Count where DATEDIFF('d',time,Now())=1"

今天
sqlTotal="select Count(*) from Count where DATEDIFF('d',time,Now())=0

（发布时间：2012-11-17 22:55）