假定当期日期为:2011-08-01 15:00:00 now - 1 :代表前一天的日期 返回值:2011-07-31 15:00:00 now - 1/3 :代表8小时前 返回值:2011-08-01 07:00:00 now - 1/12 :代表2小时前 返回值:2011-08-01 13:0 Read More
posted @ 2019-01-10 17:26 kekemuyu Views(447) Comments(0) Diggs(0) Edit