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pythonʹÓÃdatetimeÄ£¿étimedeltaʵÏÖÈÕÆÚʱ¼äÏà¼Ó：


python¼ÆËãÃ÷ÌìµÄÈÕÆÚ：


from datetime import datetime
from datetime import timedelta


now = datetime.now()
aDay = timedelta(days=1)
now = now + aDay
print now.strftime('%Y-%m-%d')
python¼ÆËã×òÌìʱ¼ä：


from datetime import datetime
from datetime import timedelta


now = datetime.now()
aDay = timedelta(days=-1)
now = now + aDay
print now.strftime('%Y-%m-%d')
ʹÓÃtimedelta¿ÉÒԺܷ½±ãµÄÔÚÈÕÆÚÉÏ×öÌìdays，Сʱhour，·ÖÖÓ，Ãë，ºÁÃë，΢ÃîµÄʱ¼ä¼ÆËã，Èç¹ûÒª¼ÆËãÔ·ÝÔòÐèÒªÁíÍâµÄ°ì·¨


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import time
last_month = time.localtime()[1]-1 or 12
print last_month