Python time、datetime

In [1]: import time

# 今天、格式化
In [2]: print time.strftime(‘%Y.%m.%d‘, time.localtime(time.time()))
2016.12.30

In [3]: from datetime import datetime, timedelta

# 今天
In [4]: print datetime.now()
2016-12-30 14:45:34.959994

# 今天
In [5]: print datetime.today()
2016-12-30 14:45:42.095479

# 昨天
In [6]: print datetime.now() - timedelta(days=1)
2016-12-29 14:47:29.274064

# 明天
In [8]: print datetime.now() + timedelta(days=1)
2016-12-31 14:49:41.047041

# 格式化
In [9]: print (datetime.now() + timedelta(days=1)).strftime(‘%Y.%m.%d‘)
2016.12.31