常用模块-time datetime

time 模块

print(time.strftime('%Y-%m-%d %T'))        2019-11-07 09:28:06

把时间戳转换为日期   print(time.localtime(1533458405.330393))    

time.struct_time(tm_year=2018, tm_mon=8, tm_mday=5, tm_hour=16, tm_min=40, tm_sec=5, tm_wday=6, tm_yday=217, tm_isdst=0)

print(time.ctime()）  Thu Nov  7 10:06:04 2019

print(time.asctime()）  Thu Nov  7 10:06:04 2019

print(time.ctime(1573092481.6335437))    Thu Nov  7 10:08:01 2019

print(time.asctime(time.localtime()))     Thu Nov  7 10:08:01 2019

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datetime 模块

print(datetime.datetime.now())    2019-11-07 10:17:39.463069获取是哪天

print(datetime.date.fromtimestamp(1234123489))   2009-02-09

print(datetime.datetime.fromtimestamp(1234123489))  2009-02-09 04:04:49

获取三天后的时间    print(datetime.datetime.now() + datetime.timedelta(days=3))  2019-11-10 10:33:17.620146

 获取三天前的时间    print(datetime.datetime.now() - datetime.timedelta(days=3)) 2019-11-04 10:36:41.069944

替换时间

obj=datetime.datetime.now()
print(obj.replace(year=2010,month=1))