Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.
Note: The solution set must not contain duplicate tr
获取当天：
select * from t_User_Video where datediff(DAY,AddDate,getdate())=0
获取本周：
select * from t_User_Video where datediff(week,AddDate,getdate())=0
AddDate 为时间类型的
