datetime 模块

Posted 2020-10-13

datetime 模块主要用于获取时间，用法如下：

In [14]: from datetime import datetime

In [15]: time = datetime.now()    # datetime.now()用于获取当前的时间

In [16]: print(time)
2017-11-09 08:16:15.471223

In [17]: new_time = time.strftime(‘%Y-%m-%d %H:%M:%S‘)    # strftime()可以指定以什么样的格式打印出时间

In [18]: print(new_time)
2017-11-09 08:16:15

In [24]: from datetime import datetime,timedelta

In [25]: time1 = datetime.now()                  # 获取现在的时间

In [26]: time2 = time1 + timedelta(days=-1)      # 获取昨天的时间

In [27]: time3 = time1 + timedelta(days=+1)      # 获取明天的时间

In [28]: time4 = time1 + timedelta(days=-10)     # 获取十天前的时间

In [29]: time5 = time1 + timedelta(days=+10)     # 获取十天后的时间