# 1、datetime 一些常用的 import datetime now = datetime.datetime.now() # 当前时间 2018-10-22 17:34:10.665324 print(now) today = datetime.date.today() # 今天的年月日 2018-10-22 print(today) # formatTime = now.strftime("%Y-%m-%d") # 按格式输出 年月日 formatTime = now.strftime("%Y-%m-%d %H:%M:%S") # 年月日 时分秒 print(formatTime) # 时间戳 chuo = datetime.timedelta(seconds=20) chuo1 = datetime.timedelta(seconds=20)-datetime.timedelta(seconds=10) chuo2 = now - datetime.timedelta(seconds=20) print(chuo) # 0:00:20 print(chuo1) # 0:00:10 print(chuo2) # now=2018-10-22 18:32:26.951076 2018-10-22 18:32:06.951076 # 2、在orm中,时间可以用lt和gt比较大小 # last_consult_date__lt = chuo # last_consult_date__gt = chuo