- 在线时间
- 475 小时
- 最后登录
- 2025-12-5
- 注册时间
- 2023-7-11
- 听众数
- 4
- 收听数
- 0
- 能力
- 0 分
- 体力
- 7747 点
- 威望
- 0 点
- 阅读权限
- 255
- 积分
- 2908
- 相册
- 0
- 日志
- 0
- 记录
- 0
- 帖子
- 1168
- 主题
- 1183
- 精华
- 0
- 分享
- 0
- 好友
- 1
该用户从未签到
 |
使用 time 模块展示当前日期和时间 k+ g" j& H. {1 F6 O
import time6 Y3 }3 D# T, y4 w$ K( @0 b
from time import gmtime, strftime
0 t- B1 _6 v" m7 Z
' o% V, F1 c2 H& A. Nt = time.localtime()
" N6 O4 C3 v6 f6 I- A, c- Iprint (time.asctime(t)) # Sun May 7 09:30:37 20177 y/ P8 ^+ K* `. u
print(strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime())) # Sun, 07 May 2017 04:00:37 +0000' a- f8 V) R. C
print(strftime("%A", gmtime())) # Sunday
9 ~8 u( H0 p, T% fprint(strftime("%D", gmtime())) # 05/07/17
8 y4 G- l3 q- W* xprint(strftime("%B", gmtime())) # May) R5 ^+ _6 v2 Y. y# h$ c- O, M
print(strftime("%y", gmtime())) # 17, C: e/ @! w' y9 C
' h' [* {! G) I' R
# Convert seconds into GMT date
" R, Y9 K. Z. a8 Q+ W. s" Mprint(strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime(1234567890))) # Fri, 13 Feb 2009 23:31:30 +0000
+ j3 o. q( q: L' ^+ @# s9 R. C; z' |" {# k" d" j% y) ] ~$ L% S$ {
二、将天、小时、分钟转换为秒! d1 o7 v- x- W
SECONDS_PER_MINUTE = 60& {5 r9 A: c- y0 r
SECONDS_PER_HOUR = 3600 Y( Z9 n( V$ d+ o) m7 \( A
SECONDS_PER_DAY = 864005 F: ?% Y7 o2 Y: H2 O
2 y8 a; P4 {: }% `' S$ U# 输入天、小时、分钟、秒的数量
, ^+ ?9 E( h/ z D# ^( h5 }- kdays = int(input("Enter number of Days: "))
3 m) x* @* W& `# X1 l! ?hours = int(input("Enter number of Hours: "))1 }- K5 ]1 O# L
minutes = int(input("Enter number of Minutes: "))
) g+ a: L9 C4 m2 d$ N$ p* Iseconds = int(input("Enter number of Seconds: ")). Q$ |% b U% y/ ~. }% T
8 Y" a; R% H5 s ^" W$ q
# 计算
/ ~$ u8 T$ E3 p. ytotal_seconds = days * SECONDS_PER_DAY" m! v4 O2 ?% u8 r" }+ k; h
total_seconds = total_seconds + ( hours * SECONDS_PER_HOUR)
5 F# @5 L9 c- u4 Btotal_seconds = total_seconds + ( minutes * SECONDS_PER_MINUTE)
, v4 s) y" [9 ^+ e1 }total_seconds = total_seconds + seconds8 u& f- z5 ~0 ?' i" V
- ?/ }2 t% c5 \5 @
# 结果
' X3 Y& E# T. N( u% Nprint("Total number of seconds: ","%d"%(total_seconds))* x3 r: [; ^3 x [% j5 a/ z M
'''
8 f: {, k" F5 [) a7 W7 [Enter number of Days: 5
8 B4 {( @7 {5 `4 {- YEnter number of Hours: 364 ]; W, k/ t2 K4 ^& H1 _, M- x
Enter number of Minutes: 24. {! L7 v1 D- d; V& q3 c
Enter number of Seconds: 15
- D9 f" T: N0 T- o q+ e" ^7 yTotal number of seconds: 563055
6 K0 ]" z" J5 x2 \# V9 @9 F& W+ v* }'''9 D) y+ u# Q! T/ A/ V
7 t( G8 y7 v- V6 t* v9 x
三、使用 Pandas 获取当前日期和时间
! H* V- ~7 a! C4 y3 fimport pandas as pd
) u7 m5 W" E* Kprint(pd.datetime.now()) # 2018-01-19 16:08:28.393553! {+ L8 A" r* ?# q# d* r j
print(pd.datetime.now().date()) # 2018-01-19% E3 s2 Q5 o5 P9 R5 j
print(pd.datetime.now().year) # 2018
+ D. v( T3 l! n3 i. c' Eprint(pd.datetime.now().month) # 1
2 m" w; {6 g+ ?print(pd.datetime.now().day) # 19
2 Y& {, h' Z4 O/ Sprint(pd.datetime.now().hour) # 16; z8 I8 `& D* d' L1 y( k2 B
print(pd.datetime.now().minute) # 80 s, P+ g5 u5 M: V o$ I! T* L
print(pd.datetime.now().second) # 28! m$ L# g8 r$ V2 p6 t' W0 u3 y
print(pd.datetime.now().microsecond) # 394553# [9 ]. L- r5 d# a# ~! t; M n. B
- d6 K: _1 C7 }, ?
四、将字符串转换为日期时间对象
$ [( s; Y- k# k/ bfrom datetime import datetime
0 P% Q" n5 U4 T- lfrom dateutil import parser
3 q: {+ Z1 F |+ k P$ K* C) L" E/ z
d1 = "Jan 7 2015 1:15PM"
l, \8 N4 x4 fd2 = "2015 Jan 7 1:33PM"
8 O1 I W" S. y* {5 r7 i9 }5 W2 L. q0 ^) `6 ^% |- j c; k
# If you know date format
$ U' p" Q ]' U' ]4 i/ sdate1 = datetime.strptime(d1, '%b %d %Y %I:%M%p')/ G6 J6 p9 D$ c+ B+ F- Z
print(type(date1)) # class 'datetime.datetime'
9 D8 i) o7 ~% j ^9 n0 X: O7 w9 }print(date1) # 2015-01-07 13:15:00
- |, @2 w! v% ]. }0 Z" L9 b8 t( \1 D/ T5 _0 Y) ^5 R0 N* `! X
# If you don't know date format/ v0 h2 m. P8 e5 N( N4 i$ E
date2 = parser.parse(d2)
: K' b" w- h0 l3 {& `6 [1 Iprint(type(date2)) # class 'datetime.datetime'( L! A0 F8 j7 H1 w
print(date2) # 2015-01-07 13:33:00
2 v. F9 t" A7 Y8 ?
( k0 y! k1 X! A' y' i2 ^& N五、以毫秒为单位获取当前时间: x0 W) s$ i. }% `: F
import time$ G: E& H" U3 E1 O* a/ W" J1 m
; j% v( [4 E7 ~: }
milliseconds = int(round(time.time() * 1000))! g+ m7 ^; @9 w2 Q
print(milliseconds) # 1516364270650
q! E& {2 b( C9 v/ I: z% t' @& N0 T- | @( y x3 M
六、以 MST、EST、UTC、GMT 和 HST 获取当前日期时间1 [( y3 i3 J" O# `: r
from datetime import datetime V! `. }# x3 D) z3 T& ]
from pytz import timezone
9 K( R. P, R Q) Z+ V$ R: @
: V# z7 r( v- ~mst = timezone('MST')
5 {# }1 m& R& S% _8 x) D5 s- Pprint("Time in MST:", datetime.now(mst)) # Time in MST: 2017-01-19 06:06:14.495605-07:00
" n4 q% \$ c6 E/ |7 [+ b; fest = timezone('EST') R+ ]8 }# y" @( }* o
print("Time in EST:", datetime.now(est)) # Time in EST: 2017-01-19 08:06:14.496606-05:00
9 }9 k( p* I8 T8 ?9 }utc = timezone('UTC')* D2 x+ p+ l: J7 O% C) }8 H2 i
print("Time in UTC:", datetime.now(utc)) # Time in UTC: 2017-01-19 13:06:14.496606+00:00$ U. Z3 J& r+ B1 f9 P
gmt = timezone('GMT'). V+ ]: N! m4 k3 l
print("Time in GMT:", datetime.now(gmt)) # Time in GMT: 2017-01-19 13:06:14.496606+00:002 d( K' `6 d& Y' v/ P
hst = timezone('HST')
& P' h; Q% r# b- r& gprint("Time in HST:", datetime.now(hst)) # Time in HST: 2017-01-19 03:06:14.497606-10:00
# b$ o7 {& m+ y" r' r/ t& d
" p5 T5 V6 H5 k2 d+ s七、从给定的日期当中获取星期几
6 i1 X! n& [6 m: l/ O" v9 q D6 [import datetime
, _, I s* i, p) m( S4 n# |$ s _' @0 x8 F7 S- z: w& Z# f
dayofweek = datetime.date(2010, 6, 16).strftime("%A")8 j/ C. Z2 G% g
print(dayofweek) # Wednesday6 U3 `- a1 k0 }+ V& [0 E% T
$ {6 ?: `0 T; I9 K! v i# weekday()方法: 0代表周一,6代表周日
' I) V! _! Z2 Q# V8 E# o3 N! S0 tprint("weekday():", datetime.date(2010, 6, 16).weekday()) # weekday(): 22 B# P, \0 Z: g! r& a8 X5 `: w
: H' T1 L! U/ X" r7 P- s
# isoweekday() 方法: 1代表周一,7代表周日
# o& i7 ^, }0 H' B2 |/ u5 Iprint("isoweekday()", datetime.date(2010, 6, 16).isoweekday()) # isoweekday() 3' `) a$ F9 ^+ h
g3 P! b0 [/ D- K3 [6 ~
dayofweek = datetime.datetime.today().strftime("%A")
1 N3 \7 O$ d! k+ s/ dprint(dayofweek) # Friday
/ n6 n9 E5 w: s: d9 @print("weekday():", datetime.datetime.today().weekday()) # weekday(): 4
6 l6 o& f" t0 y6 tprint("isoweekday()", datetime.datetime.today().isoweekday()) # isoweekday(): 53 o$ S- n$ F$ e! n; K2 u+ u
- O* w$ P4 p) Z" q
八、计算两个日期时间对象之间的时差
9 N- g3 w+ V# p5 x' _/ Mimport datetime( N, W# L) a! ^# D$ r3 ^) h
from datetime import timedelta
2 o3 ^ l1 y- z' K: J+ I) J
0 O5 E/ a7 i& l& n$ r2 idatetimeFormat = '%Y-%m-%d %H:%M:%S.%f'
" h8 @* }8 I- G/ y* |. Y/ ^, Wdate1 = '2016-04-16 10:01:28.585'& _; q# {7 Q# A+ y+ a1 a/ [% P
date2 = '2016-03-10 09:56:28.067'
( d5 ~8 z, M4 V) g ]6 ]diff = datetime.datetime.strptime(date1, datetimeFormat)\6 B$ f6 |3 V4 m
- datetime.datetime.strptime(date2, datetimeFormat)- E/ R3 |/ a% z. u$ e+ h) d' Y
$ X9 l8 K' k/ {# `, oprint("Difference:", diff) # Difference: 37 days, 0:05:00.518000- W" h2 T' A B/ l8 c
print("Days:", diff.days) # Days: 37
8 \1 Q! j( b6 f5 R5 j$ |print("Microseconds:", diff.microseconds) # Microseconds: 518000/ V6 F1 {% F0 D" Z
print("Seconds:", diff.seconds) # Seconds: 300; ~- T' y' i/ V
, P/ L/ z- I1 J九、将 5 分钟添加到 Unix 时间戳; T$ E7 N: Q) H. C/ ]5 h" {
import datetime f7 B* \' w8 f l
import calendar
3 \5 {! c$ f; Z( M" P
& ?, Z/ Y* ~! }: ^$ \2 ^future = datetime.datetime.utcnow() + datetime.timedelta(minutes=5)
( J' l% U- _4 }/ w9 Lprint(calendar.timegm(future.timetuple())) # 1621069619
5 d$ Z. L" c6 [+ x* _; g* ~1 P5 H9 c `0 w" @+ N
十、遍历一系列日期' K6 S0 y$ M7 x
import datetime
2 m7 F: y9 n0 c- J8 o- [9 v* [; y3 @* }. k/ f
start = datetime.datetime.strptime("21-06-2020", "%d-%m-%Y"): Y0 l' W5 p# N
end = datetime.datetime.strptime("05-07-2020", "%d-%m-%Y")9 t; s9 T4 A4 l! f4 B0 n1 ~" a
date_generated = [start + datetime.timedelta(days=x) for x in range(0, (end - start).days)]- l5 i {8 f& h
- u; T9 j6 R3 n$ B" B& @+ b6 m( ffor date in date_generated:
# H$ I) Q w( ?- C. R print(date.strftime("%d-%m-%Y"))
- H: L4 g# K# a7 [# Q
$ d. t( }2 s/ q3 ]' Z- h+ [( }十一、巴黎时间更改为纽约时间
3 s+ g5 V' Y1 F8 p/ {1 z7 I" zimport pendulum
1 x# J9 `5 v& Q% R% D) H0 A8 V1 `4 {
$ n( y& X4 W' @% Zin_paris = pendulum.datetime(2016, 8, 7, 22, 24, 30, tz='Europe/Paris')
) ]' q, j# Y. F. ^- @print(in_paris) # 2016-08-07T22:24:30+02:00
4 l1 c* C. H0 @- x; X4 K6 {- ?" C8 ~
6 H+ z7 ~ Q3 O7 N* kin_us = in_paris.in_timezone('America/New_York')* G! G2 j/ i+ q+ D
print(in_us) # 2016-08-07T16:24:30-04:00
; } l( r- @+ u: N3 E+ f# l
. S: `. B5 R- s! W十二、使用 Python 获得最后7个工作日0 M8 g8 k; L, }! Q9 l% {5 |
from datetime import date
' y3 b* c W7 c; ^( m' }3 gfrom datetime import timedelta
' H' B! p/ w- m% f6 \* G
. c W% {, Q0 C5 b5 Stoday = date.today()2 d8 ~2 G5 l* J/ m' O' ?
5 G* a3 Q" o9 K& @% C; `for i in range(7):
$ N5 @) Z5 ~( N" E c8 A, r- \ y& | d = today - timedelta(days=i)
2 o# @0 @ Z/ c& b+ s' i if d.weekday() < 5:- S9 d& U( Z H4 \6 T% ^- \% w/ v
print(d)
" I5 n: P/ h4 A; W- _' c5 | t3 w4 J7 {) ~! r! D, k
十三、从今天的日期和一个人的生日推算年龄
, C( l9 n: } Q* V2 Tfrom datetime import date- e; V8 x. F2 C
% Q7 ~0 F0 d v7 M" w
# [ C; t+ |. B" I4 ndef calculate_age(born):4 Y% f | I9 I; U5 R' u, q7 h- n
today = date.today()
1 G- I q7 B% X# z' d: C5 j0 w, J try:, y: u" M. E3 J L, v
birthday = born.replace(year=today.year)
/ B7 A* ]0 V- E/ \# }) [ except ValueError:
* m7 D8 u& W( ?$ X* {" T birthday = born.replace(year=today.year, month=born.month + 1, day=1)4 X% E( x( k! X+ o9 }; v" {
if birthday > today:! y( }! ]# f- T4 z6 ?1 J5 q' q: q3 d4 i
return today.year - born.year - 1' D' i" I& |0 E4 S! ~2 G9 ^; C
else:6 t: W4 Z5 l& t+ @$ V
return today.year - born.year
% X$ A( T8 t" W: E$ M. X/ j7 S7 a; _/ j4 t
0 D, E9 g" P" Hprint(calculate_age(date(2001, 3, 1)))
1 E& j1 q {" w+ Q3 @/ v# D+ e0 ]. c/ I i) C
十四、获得本月的第一个星期二6 ^9 h+ M2 A4 w8 T
import calendar
% {8 H9 y/ w( k3 @: x3 t) Ifrom datetime import datetime' E# e# @3 g! {- P& u( _* W
' G! T! w$ P6 P8 e' @+ Uc = calendar.Calendar(firstweekday=calendar.SUNDAY)
/ f0 o" R. h/ Ymonthcal = c.monthdatescalendar(datetime.today().year, datetime.today().month)
2 P' r y) ^' ]5 L! m% a#Python小白学习交流群:153708845
) c' P9 _$ t1 ^8 o' Dtry:2 v6 I0 ~% M* ~; H
tues = [day for week in monthcal for day in week if }) M% O' M1 b( w: M1 t! l( {+ ?
day.weekday() == calendar.TUESDAY and day.month == datetime.today().month][0]
+ a& d# k* `# b4 V* ^6 p7 z print(tues)) z4 ^' \9 j% N) q" B; }
except IndexError:/ |3 e. S$ x) r/ n% A
print('No date found')
9 d+ h* l9 E' N3 [3 Y/ @% O1 ~% Y9 I4 Z3 E4 k+ ]7 R
十五、将整数转换为日期对象% i- o, f, m+ K$ S5 u$ t
from datetime import datetime
" Y% b8 n- e$ \& l, V, {9 @
! D# q6 _! L$ `i = 1545730073( T' Z6 e5 I9 a) ^0 f
timestamp = datetime.fromtimestamp(i)! c! l! v4 @+ P- ^7 Z
. \1 v2 J% @* L6 l; ?print(timestamp) # 2018-12-25 14:57:53
( n: G& f o7 f. l4 G! i a7 ~print(type(timestamp))
( N+ |* F' N5 g& S0 C$ g7 I, R3 [+ h g4 O4 `) u0 A
十六、当前日期减去 N 天的天数6 C) }- {2 d" G5 N. d
from datetime import datetime, timedelta& g" ?* F2 ], F7 m9 g- Y
. i9 J7 p; R# B2 V% ^; h, `; i$ K
d = datetime.today() - timedelta(days=5)6 Q2 f0 j% L# y" T8 Q" l1 \
print(d)2 r$ C! d% s4 i8 m
1 M5 `( w" H' F/ C
十七、比较两个日期: ?4 ?" i5 C |( J4 c& T# [" _0 c
import datetime/ K' K u8 N. D: d3 _- F
; }" Z! T% r1 M/ l1 Aa = datetime.datetime(2020, 12, 31, 23, 59, 59)
/ A; b7 ] L! O* Ub = datetime.datetime(2020, 11, 30, 23, 59, 59)
; L* r% Q+ Q7 } h) J* W" s- w2 e: ]+ ^4 D+ f6 d \7 A1 C
print(a < b)
6 f0 u9 H% j0 H5 {print(a > b)
0 V3 c' `1 d2 k- Y( ?6 ^! Z2 S/ R, [2 T2 B2 ]/ _
十八、从 datetime 对象中提取年份$ a" a+ s$ N# C! d5 H( d7 E
import datetime
# _8 |' E6 n7 K% y# c2 G4 q7 t% }4 D8 N
year = datetime.date.today().year
4 x6 s7 ]- `* @: X% fprint(year)" s- u/ P8 I4 u( k) v
0 M- A3 b+ N4 z- S( J. L& C$ ]
十九、根据日期找到星期几
7 C c+ A$ N6 z5 z1 R" r% yimport pendulum0 C6 N+ F. x1 ?1 e
0 ^9 p" Q9 h+ v3 G& `dt = pendulum.parse('2021-05-18')( u {; o; \* B, p+ Y" S2 x
print(dt.day_of_week) # 2, ~. Y( W2 C; w+ R1 d3 u
$ s% U; b$ d" `* i' Tdt = pendulum.parse('2021-05-01')
3 @4 ?9 w6 @, h* qprint(dt.day_of_week) # 6
7 J* a% Q& Q& {& i$ \* w) _- B9 N; ]. `* I
dt = pendulum.parse('2021-05-21')
: Z6 K0 e. n- U6 x X; bprint(dt.day_of_week) # 5
s9 O9 m* B5 y# t2 i8 S3 y7 E: s8 o' w- X9 b2 L* R
二十、从当前日期获取 7 天前的日期* i6 e4 g# t" w; D2 q8 w
from datetime import datetime, timedelta, c3 c# m+ ~ m! d e' T1 \' o
0 t1 d+ S2 l5 i! @& Gnow = datetime.now()" f2 I. K) q: i9 c
- j; f! \2 X8 }$ q4 w. vfor x in range(7):
2 x* B* D( O6 p' b; F/ f( p) c4 X d = now - timedelta(days=x)4 x7 `; }: _. y0 E- C6 I8 S# ~
print(d.strftime("%Y-%m-%d"))
, \' K% d. G. j$ l/ K8 ^; T
$ {( q# H+ j! J二十一、将两个日期时间对象之间的差值转换为秒
/ Q3 K* {# {1 @4 n4 v% l1 Rimport datetime2 l$ D7 S. C9 f- ?
: @! X8 N# }1 @% z2 d; W
time1 = datetime.datetime.strptime('19 01 2021', '%d %m %Y')! Q( s) R, p" i" R0 z: M
time2 = datetime.datetime.strptime('25 01 2021', '%d %m %Y')
5 j& m7 H7 ^2 z2 ^
3 X8 X0 T) t/ E7 Idifference = time2 - time1
# l, j9 a1 t* rprint(difference) # 6 days, 0:00:001 I+ C6 E5 f. U; j! a
6 S: A9 H( a" u5 d* y$ s: j& Pseconds = difference.total_seconds()
. D' T6 W ]) u" S- Z' V8 }3 Cprint(seconds) # 518400.0( b4 K0 V0 |! D9 Z' A* T* Y9 v
) K# Y7 ]- w! x* t" ^6 t" ^$ ]二十二、获得任何一个月的第N个星期五
, n' i0 J+ X( k$ ?2 F% F8 @, Oimport calendar
5 ~; Z: z% F! E1 O& Z: V- D' t0 c$ L6 Y! g
# 取2021年5月的第三个星期五5 L! F( s' k3 f; D* y: q1 E
c = calendar.Calendar(firstweekday=calendar.SUNDAY)
. \( `/ d; w( w7 i: ayear = 2021& L8 y% m* U7 ?" Y2 e: L9 T
month = 5
# S# F3 u: b5 }2 On = 2 # 取第三个
- w" @% B4 m- b; }- k0 V" lmonthcal = c.monthdatescalendar(year, month)4 o, ^+ B, B. q( E2 f
. u; r& u1 E" Y Z3 j& X
try:
; L' w& w+ ?1 Z2 E third_friday = [
* p" I5 N6 e0 ? x day for week in monthcal ) t5 k9 r! O q+ f0 ~' A
for day in week if! l5 [- {, C2 V8 r4 M6 R' l& ?
day.weekday() == calendar.FRIDAY and day.month == month0 Y7 d6 g. ~, U% e& y! g
][n]
9 K* @) b2 c9 D! q4 J8 ] print(third_friday) # 2021-05-21
" I( W* r" X4 q! gexcept IndexError:% k+ }2 H8 j4 x8 T" K( u8 O" T/ [
print('No date found')
8 q H7 g5 Z0 c$ t1 F: I. T: _& c5 Z+ S2 u* E! S7 q' ~9 y8 G
二十三、根据周数获取日期
/ T* A4 q/ e% v1 G1 J( ?/ k. cimport datetime
* B$ ?+ U8 p6 K3 c9 _from dateutil.relativedelta import relativedelta
+ @$ j! d$ f f Z7 m6 m p: W+ Q% R Z& ^4 A
week = 25
6 t' Z6 V$ I( yyear = 2021
9 q+ [' K8 X/ {6 k. f; Idate = datetime.date(year, 1, 1) + relativedelta(weeks=+week)- ]; u+ F2 y5 g
print(date) # 2021-06-25( I y1 p+ ~ H" ]
3 z& M! S# O; c二十四、获取特定日期的工作日
& @: E! `6 F& V* P) Cimport datetime v m* P3 \) V* z% h; t3 \8 O$ A
6 m4 o2 o6 C5 lprint(datetime.date(2020, 5, 15).isocalendar()[2]) # 5
- Q4 N/ I9 o! `( c) `
4 {% [, ~( |. ]- P/ a二十五、创建一个 15 分钟前的 DateTime5 M2 t( M# }/ c1 |( i
import datetime5 ?+ F$ C0 a8 }( d& ]
#Python小白学习交流群:153708845 1 g5 w% a1 o; f- y
dt = datetime.datetime.now() - datetime.timedelta(minutes=15)
. t7 f( ~' `$ q1 R. Yprint(dt) # 2021-05-15 22:25:55.897365
- @- `: [- G, A/ E' k2 K: x! i% U8 ?5 A' S- Z
二十六、从特定日期获取周的开始和结束日期" G/ ]4 q1 e P
import pendulum
- z# O( N' ~0 [0 t! c* }
0 e; s0 f; g& X z4 z. kdt = pendulum.datetime(2012, 9, 5)* t/ Q4 D! ^/ X8 E/ }
# g; U& R5 O9 w8 v0 D2 Q, j
start = dt.start_of('week')) R7 [; y7 j# _, A b* r
print(start.to_datetime_string()) # 2012-09-03 00:00:00! Q. l" ^. c- N7 J& ?" E3 U
4 y0 q+ ?) f. ]- Send = dt.end_of('week')) [6 _$ E! _7 P3 d7 Q; b
print(end.to_datetime_string()) # 2012-09-09 23:59:59
$ `% q/ k2 r- Q0 `# ^# M8 [
' [- G `( [ E. ` X+ Z# I( g二十七、两个日期之间的差异(以秒为单位)4 M A- C( y w5 H
from datetime import datetime* ~& z% u [+ p$ y/ I
#Python小白学习交流群:153708845 4 D0 O& w: z0 k) p# ?# q
fmt = '%Y-%m-%d %H:%M:%S'
: J, }$ K; `5 d5 Sd1 = datetime.strptime('2020-01-01 17:31:22', fmt): g; s( ^+ n! |( i
d2 = datetime.strptime('2020-01-03 17:31:22', fmt)5 i$ b, Z6 V9 ?; R$ [: D: P' v
* }+ o! T& g/ X/ ^1 y
days_diff = d2 - d16 z5 |' m* h# J }- x' \
print(days_diff.days * 24 * 60 * 60) # 172800
b* D9 o8 X" x8 W' _+ [" T
- ]& Z! a8 ^ }二十八、以这种格式获取昨天的日期MMDDYY- h4 O" d1 a- k, |( v9 i8 k
from datetime import date, timedelta
2 b- @" e8 a+ {& \7 Q0 Z" ?3 p& H/ s5 b8 H+ N3 ~: W
yesterday = date.today() - timedelta(days=1)2 E4 [' B+ y3 {" p
print(yesterday.strftime('%m%d%y')) # 0514213 b. w1 T; D9 [( ]& S" p! Z! z+ K2 e
$ j8 h: C% x: Q6 O: V; M* A二十九、根据今天的日期获取上周三的日期
$ O+ \' `0 E/ D5 |4 M8 x+ n( pfrom datetime import date1 ~7 a+ H0 x8 x3 W7 H+ W9 N5 j6 x
from datetime import timedelta$ y; ?+ e6 p$ r7 O+ R) d& ?7 I" V
: d, z$ t3 e5 u; |* p# |/ B% F; a, Stoday = date.today()9 K7 [0 a5 T. e% A
, O/ R! g& e% K$ g( a
offset = (today.weekday() - 2) % 7& p) }" q7 v O% _/ Q3 B
wednesday = today - timedelta(days=offset)
+ e2 L3 r* g' Z$ X/ s! }1 Zprint(wednesday) # 2021-05-12
* a; r @) ^1 q# l/ A8 B
( }2 L6 d( a$ w) d三十、所有可用时区的列表打印
" U) b. G4 A3 Q( M, L$ A1 j6 Vimport pytz) T2 Q* W1 g! l* N
- o8 b- x" z4 g& O5 M. b0 i* W8 Kfor i in pytz.all_timezones:
+ n- }1 J3 ~ ~ print(i)
6 K# Q( U' ^1 Q% x, w- U( _/ m$ h8 w! m$ n. Q& U5 R# w7 {
$ @" L6 h& d4 S; ?+ h7 t
) G7 i! f C* e6 j' F$ v |
zan
|