^(19|20)\d\d[-/.]((0[1-9])|([1-9])|(1[0-2]))[-/.](([0-2][1-9])|([1-2]0)|(3[0-1])|([1-9])) (([0-1]\d)|([1-9])|(2[0-3]|(0))):(([0-5]\d)|([1-9])):(([0-5]\d)|([1-9]))$
^(19|20)\d\d[-/.]((0[1-9])|([1-9])|(1[0-2]))[-/.](([0-2][1-9])|([1-2]0)|(3[0-1])|([1-9])) (([0-1]\d)|([1-9])|(2[0-3]|(0))):(([0-5]\d)|([1-9])):(([0-5]\d)|([1-9]))$
转载于:https://www.cnblogs.com/CB/archive/2008/03/07/1095567.html