from datetime import datetime

 # 获取当前时间
 now = datetime.now()
 print(now)
 # 结果：2018-03-29 11:25:28.103611

 # 获取指定日期和时间
 t = datetime(2017, 3, 7, 13, 32, 33)
 print(t)
 # 结果：2017-03-07 13:32:33

 # 将时间转化为时间戳
 now = datetime.now()
 print(now.timestamp())
 # 结果：1522294205.278572

 # 将时间戳转化为可读时间
 t = 1522294205.278572
 print(datetime.fromtimestamp(t))
 # 结果：2018-03-29 11:30:05.278572