1、time.time()

importtime

t1=time.time()print(t1) #1594006474.1072185

2、获取当地时间-->结构化时间   time.localtime()

importtime

t2=time.localtime()print(t2)#time.struct_time(tm_year=2020, tm_mon=7, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=183, tm_isdst=-1)

3、根据指定格式，获取结构化时间   time.strptime()

importtime

t2= time.strptime("30 11 2000", "%d %m %Y")print(t2)#time.struct_time(tm_year=2000, tm_mon=11, tm_mday=30, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=335, tm_isdst=-1)

%Y Year with century as a decimal number.

%m Month as a decimal number [01,12].

%d Day of the month as a decimal number [01,31].

%H Hour (24-hour clock) as a decimal number [00,23].

%M Minute as a decimal number [00,59].

%S Second as a decimal number [00,61].

%z Time zone offset from UTC.

%a Locale's abbreviated weekday name.

%A Locale's full weekday name.

%b Locale's abbreviated month name.

%B Locale's full month name.

%c Locale's appropriate date and time representation.

%I Hour (12-hour clock) as a decimal number [01,12].

%p Locale's equivalent of either AM or PM.

importtime

t2= time.strptime("2020-07-01", "%Y{y}%m{y}%d".format(y="-"))print(t2)#time.struct_time(tm_year=2020, tm_mon=7, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=183, tm_isdst=-1)

4、根据结构时间，获取指定格式时间  time.strftime()

importtime

t2= time.localtime() #time.struct_time(tm_year=2020, tm_mon=7, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=183, tm_isdst=-1)

t3= time.strftime("%Y{y}%m{y}%d".format(y="-"),t2)print(t3)#2020-07-01

5、根据结构时间，获取时间戳   time.mktime()

importtime

t2= time.localtime() #time.struct_time(tm_year=2020, tm_mon=7, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=2, tm_yday=183, tm_isdst=-1)

t4=time.mktime(t2)print(t4)#1593532800.0

6、补充datetime用法。

7、date用法

from datetime importdate,timedelta

date_today=date.today()print(date_today) #2020-07-11

from datetime importdate,timedelta#date_today = date.today()

#print(date_today) # 2020-07-11

t1= timedelta(days=7)print(t1) #7 days, 0:00:00

from datetime importdate,timedelta,datetime#date_today = date.today()

#print(date_today) # 2020-07-11

#t1 = timedelta(days=7)#

#print(t1) # 7 days, 0:00:00

t2= datetime.strptime("2020-07-01", '%Y-%m-%d')print(t2) #2020-07-01 00:00:00

最后出现神奇的一幕。

from datetime importdate,timedelta,datetime#date_today = date.today()

#print(date_today) # 2020-07-11

#t1 = timedelta(days=7)#

#print(t1) # 7 days, 0:00:00

t2= datetime.strptime("2020-07-01", '%Y-%m-%d')#

#print(t2) # 2020-07-01 00:00:00

t3= timedelta(days=7)print(t3) #7 days, 0:00:00

t4= t2 -t3print(t4) #2020-06-24 00:00:00