Python 官方文档:入门教程 => 点击学习
import time import datetime start = datetime.datetime.now() time.sleep(30) end = datetime.datetime.now() print (end-s
import time
import datetime
start = datetime.datetime.now()
time.sleep(30)
end = datetime.datetime.now()
print (end-start).days # 0 天数
print (end-start).total_seconds() # 30.029522 精确秒数
print (end-start).seconds # 30 秒数
print (end-start).microseconds # 29522 毫秒数
import datetime
now = datetime.datetime.now()
three_days_aGo = now + datetime.timedelta(days=-3)
three_weeks_ago = now + datetime.timedelta(weeks=-3)
print now # datetime.datetime(2016, 12, 22, 11, 24, 49, 987171)
print three_days_ago # datetime.datetime(2016, 12, 19, 11, 24, 49, 987171)
print three_weeks_ago # datetime.datetime(2016, 12, 1, 11, 24, 49, 987171)
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本文标题: python 时间差的计算
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