导入datetime,然后导入神奇的timedelta内容:
In [63]: datetime.datetime.now()Out[63]: datetime.datetime(2010, 12, 27, 14, 39, 19, 700401)In [64]: datetime.datetime.now() - datetime.timedelta(minutes=15)Out[64]: datetime.datetime(2010, 12, 27, 14, 24, 21, 684435)

导入datetime,然后导入神奇的timedelta内容:
In [63]: datetime.datetime.now()Out[63]: datetime.datetime(2010, 12, 27, 14, 39, 19, 700401)In [64]: datetime.datetime.now() - datetime.timedelta(minutes=15)Out[64]: datetime.datetime(2010, 12, 27, 14, 24, 21, 684435)