QQ登录

只需要一步,快速开始

 注册地址  找回密码
查看: 2259|回复: 0
打印 上一主题 下一主题

Python处理日期方法大全、三十种方法

[复制链接]
字体大小: 正常 放大

1183

主题

4

听众

2908

积分

该用户从未签到

跳转到指定楼层
1#
发表于 2024-3-22 11:30 |只看该作者 |倒序浏览
|招呼Ta 关注Ta
使用 time 模块展示当前日期和时间
, i9 o  |! d& N% b& Aimport time' _, o6 K1 L1 X& j3 H/ k; h8 G
from time import gmtime, strftime0 g& n' T4 F3 ]8 C  I' Z
1 b2 g) S3 k. _/ [) z
t = time.localtime()  . C3 w8 Y8 n7 B1 R1 B1 f/ v3 x6 s
print (time.asctime(t))  # Sun May 7 09:30:37 2017
! Q0 w0 X  X8 D8 Yprint(strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime()))  # Sun, 07 May 2017 04:00:37 +0000
8 n" L3 f& N& lprint(strftime("%A", gmtime()))  # Sunday/ W  X# r) e7 x* u9 p: e6 b
print(strftime("%D", gmtime()))  # 05/07/17& o. t0 u/ z' ?
print(strftime("%B", gmtime()))  # May
3 Z. Y/ o$ m1 B+ v4 u; q3 i/ wprint(strftime("%y", gmtime()))  # 17
6 ]6 \  j. i( b6 O# y! ^! q) i  ?# x4 a; Z% J! S1 D
# Convert seconds into GMT date
/ f) t+ {$ ]! aprint(strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime(1234567890)))  # Fri, 13 Feb 2009 23:31:30 +0000
0 p8 J1 F% K3 O- A
( n8 Q2 P3 M( j+ [1 D0 k7 V二、将天、小时、分钟转换为秒" Q- _7 I" A/ S( M# d$ E
SECONDS_PER_MINUTE = 60) }% r. A- k$ R; j/ y
SECONDS_PER_HOUR = 3600
; k& J: Z& I; ^& d) c- G* tSECONDS_PER_DAY = 86400& B6 d( K$ o' Z% B! B) L# S
; x0 I" o: l& c, k( U: D
# 输入天、小时、分钟、秒的数量
. n, l1 Q' o3 N1 y- cdays = int(input("Enter number of Days: "))
$ X/ u9 J1 p* J* fhours = int(input("Enter number of Hours: "))+ b5 h: S  @& t8 ]) C$ O
minutes = int(input("Enter number of Minutes: "))! \) u) {, Y* I5 ^1 n* J% j3 s3 H$ I9 g
seconds = int(input("Enter number of Seconds: "))
& Q6 T& g6 Y4 l/ P4 S( P/ G. p1 b/ m- B0 b7 L8 m3 [, I4 a; U
# 计算. G4 j2 |8 |: `
total_seconds = days * SECONDS_PER_DAY3 d& s7 e" l& B* `7 x* {
total_seconds = total_seconds + ( hours * SECONDS_PER_HOUR)6 p2 V  L  ^' W6 L5 g
total_seconds = total_seconds + ( minutes * SECONDS_PER_MINUTE)
3 E% o- i2 Y: x, O  r& ototal_seconds = total_seconds + seconds
. s7 l* ]: u8 ^/ e- M# }6 [' u/ ]4 v2 d1 X1 Y" Q# S
# 结果
. [3 `- a* U+ p) v  O2 U% zprint("Total number of seconds: ","%d"%(total_seconds))5 t3 a' a! u% h- \
''', a5 j% H( B; n
Enter number of Days: 5# _8 Y9 n& U; `2 O" N( s8 P; Z
Enter number of Hours: 368 d6 F" x$ i! _* e) R% Y: n
Enter number of Minutes: 24
1 ^$ ^) q0 U5 s9 PEnter number of Seconds: 15, F/ e, O0 w! Y+ B4 X& Y
Total number of seconds: 563055/ @+ ~6 @8 n3 n: ~9 O' c& R/ j! a
'''4 N: V) L6 L' o( \3 f6 m

% o2 Z7 j$ x) M/ r* r5 [, Q# M三、使用 Pandas 获取当前日期和时间
; R. k7 E0 B4 b6 Mimport pandas as pd6 l7 I5 n' W4 i0 s% n2 E/ {4 u  E
print(pd.datetime.now())  # 2018-01-19 16:08:28.393553
2 d1 ~" {# X' sprint(pd.datetime.now().date())  # 2018-01-19& U6 L) v5 j% I) l! K
print(pd.datetime.now().year)  # 20189 t& g5 E/ u3 Q8 N' A8 n/ g
print(pd.datetime.now().month)  # 1
% T2 ^1 a5 X/ t6 b/ ~1 c/ K3 ?print(pd.datetime.now().day)  # 19
  g$ ?- |* _+ H8 v' R& V! zprint(pd.datetime.now().hour)  # 160 S7 E& G  Q; o9 h5 e" u* N' i
print(pd.datetime.now().minute)  # 8
! q+ u9 [- I& G% W) E: ^: l# q% Yprint(pd.datetime.now().second)  # 28
  t5 `1 r4 G6 Q4 ?" n2 @, |9 U% Uprint(pd.datetime.now().microsecond)  # 394553( w, I" Z4 S' m9 R+ |% b
4 w7 ]; o8 q9 U9 Y  x6 ]4 E
四、将字符串转换为日期时间对象1 k! [/ L7 S! r8 p4 d' v& c
from datetime import datetime' F3 U0 N! c& u+ r
from dateutil import parser
0 ?7 T" O4 I8 m6 d" w9 S4 g1 A* @, ~" f% W) D* T- Z
d1 = "Jan 7 2015  1:15PM"+ q2 R3 [" J  E( E
d2 = "2015 Jan 7  1:33PM"/ {# _+ h* B! s2 d+ o+ H/ O0 d7 o
$ V- B3 P/ t2 J7 S" L$ |
# If you know date format
; m! t' u+ B7 a6 ]$ H3 adate1 = datetime.strptime(d1, '%b %d %Y %I:%M%p')
* z  q, ~& ~8 k+ P3 dprint(type(date1))  # class 'datetime.datetime'% U% l6 s1 `- K' U
print(date1)  # 2015-01-07 13:15:004 ^% u% q* O& A5 L

# A0 H- a' E+ C# ?& O. w# If you don't know date format
- T- J4 C3 Q: Hdate2 = parser.parse(d2)+ m# C: W1 d6 J2 }5 X' X# y. @, W1 p
print(type(date2))  # class 'datetime.datetime'
( o, m! T+ z  H6 q7 P) f: Mprint(date2)  # 2015-01-07 13:33:003 |. v  U- ?$ G

* I7 W. ^* U  I五、以毫秒为单位获取当前时间* Y* V) `3 h' H  p: v4 ]
import time7 L- \7 M! A' y2 J( Y

  b! c' j) n. n8 x5 H& v. Wmilliseconds = int(round(time.time() * 1000))( @3 |: `/ f4 |3 J9 Q! z
print(milliseconds)  # 15163642706501 X8 Z6 l' X5 c0 q) l) p! A% _1 R
0 Y% P$ [8 K. r6 s: ?8 J& Z" d: [
六、以 MST、EST、UTC、GMT 和 HST 获取当前日期时间6 [% c7 M/ n% O3 J) Z. r
from datetime import datetime
) b" z/ C& U# [4 Jfrom pytz import timezone4 f! z! b) |. n' u3 j3 N0 {0 w

+ @; N: h8 C# S% L6 V  @4 u; Nmst = timezone('MST')% W, _4 a! ?) i( d# V
print("Time in MST:", datetime.now(mst))  # Time in MST: 2017-01-19 06:06:14.495605-07:00" w6 p  C% z" H9 m0 X- m
est = timezone('EST')3 f4 J: D: t6 j
print("Time in EST:", datetime.now(est))  # Time in EST: 2017-01-19 08:06:14.496606-05:004 G; ~' H/ @" i! I9 `
utc = timezone('UTC')7 w& U/ `" F8 W  O: |
print("Time in UTC:", datetime.now(utc))  # Time in UTC: 2017-01-19 13:06:14.496606+00:00& m9 E! a; g  @/ ]' A: e: F1 x4 h; i
gmt = timezone('GMT')( T  f, A) r3 |2 x3 u
print("Time in GMT:", datetime.now(gmt))  # Time in GMT: 2017-01-19 13:06:14.496606+00:00
- r2 t2 }3 C$ a: p2 f$ \& Ehst = timezone('HST')7 m. W2 l8 n7 Z1 w
print("Time in HST:", datetime.now(hst))  # Time in HST: 2017-01-19 03:06:14.497606-10:00
, Q9 m$ F" j' j7 Q' e! _, W, g( \- U, Z) S
七、从给定的日期当中获取星期几
: s7 G* s0 D& `* j; Fimport datetime
( w) {) Q* z- N; N. |0 F! b
9 N% w4 \, R/ U" b( A: f; |dayofweek = datetime.date(2010, 6, 16).strftime("%A")
8 L3 q# I" U  @% }0 A) E  uprint(dayofweek)  # Wednesday3 A6 n5 @8 f/ \* F4 z' k6 B

) L) \+ P/ r5 R# weekday()方法: 0代表周一,6代表周日
. X; o* l0 t+ P! e! B3 f7 ?print("weekday():", datetime.date(2010, 6, 16).weekday())  # weekday(): 22 T* s" \7 p& e0 A' z

2 P9 @4 @5 k, Q2 {  f/ ^# isoweekday() 方法: 1代表周一,7代表周日" `* d8 l3 s: A0 A
print("isoweekday()", datetime.date(2010, 6, 16).isoweekday())  # isoweekday() 3
7 r/ O; w$ i9 P8 x7 c6 }
: |; ]0 [# x9 ^dayofweek = datetime.datetime.today().strftime("%A")( K& _9 @' d) x2 Z
print(dayofweek)  # Friday
7 q$ G- g$ \( R1 M" v" lprint("weekday():", datetime.datetime.today().weekday())  # weekday(): 4
) B% [/ i0 V* |print("isoweekday()", datetime.datetime.today().isoweekday())  # isoweekday(): 5
; v' V6 D, ~$ w; h4 |2 T' g, O' b; V+ ^+ e
八、计算两个日期时间对象之间的时差! K, W$ S% E5 p* ?; G3 k
import datetime
# u; p6 b& l7 N$ O7 y) dfrom datetime import timedelta
; g4 Q7 t1 y# s4 d: b$ [6 g$ J0 d0 U  s& W' o( h
datetimeFormat = '%Y-%m-%d %H:%M:%S.%f'/ a6 R6 C8 a& T" R9 Q0 U0 n+ ?
date1 = '2016-04-16 10:01:28.585'
9 c0 E" D; f* k5 Idate2 = '2016-03-10 09:56:28.067'! ?0 W2 A. g5 X- ~5 S
diff = datetime.datetime.strptime(date1, datetimeFormat)\: c1 `# V) m3 b, W" U0 Q2 `
    - datetime.datetime.strptime(date2, datetimeFormat)/ r. }* A7 Y" ^1 N
) t# C6 w- `  D' X2 Z
print("Difference:", diff)  # Difference: 37 days, 0:05:00.518000
1 `1 a" I8 `: Iprint("Days:", diff.days)  # Days: 373 f$ |8 o5 g1 D1 p# K$ F3 r; d
print("Microseconds:", diff.microseconds)  # Microseconds: 518000
0 d& Y; y) N/ sprint("Seconds:", diff.seconds)  # Seconds: 3001 r& ~8 \1 b; L+ m

) l. f2 r& M, F( B/ ?9 t$ y九、将 5 分钟添加到 Unix 时间戳
$ n" {- ]+ h: P* Simport datetime9 b1 ?, q; S2 G. k- |0 q# _
import calendar' w- ~+ j9 s1 J2 k4 S# N
3 O4 S% Y6 @% _# E3 m" X
future = datetime.datetime.utcnow() + datetime.timedelta(minutes=5)/ I9 P3 U# X! d( }! u7 J
print(calendar.timegm(future.timetuple()))  # 1621069619
3 K# k' e" {& X8 J
+ a- O' f+ I; M% R  t十、遍历一系列日期
( n7 e/ z2 M& dimport datetime
, I4 l  i* c) j* U3 @5 `6 [! o/ @
. @% \% \$ O0 L" c, sstart = datetime.datetime.strptime("21-06-2020", "%d-%m-%Y")% |: ?- _( `- E8 a1 ?
end = datetime.datetime.strptime("05-07-2020", "%d-%m-%Y")4 t2 e) G; _/ v9 w* s+ _: Z
date_generated = [start + datetime.timedelta(days=x) for x in range(0, (end - start).days)]. `% n' x2 d' d; \
  ~/ n. Q# Y! j+ ]
for date in date_generated:
2 C, }* `; q+ |4 T" n    print(date.strftime("%d-%m-%Y"))
% Q, `+ x# G' Q2 s# z; }3 g- p  ^1 r5 U) T: v8 o0 l
十一、巴黎时间更改为纽约时间
  }& F! X# F& Kimport pendulum
) ?# y9 d; A2 ?
# G9 _* y: \- d) D+ oin_paris = pendulum.datetime(2016, 8, 7, 22, 24, 30, tz='Europe/Paris')
  r, Y, c  q& D* C" Uprint(in_paris)  # 2016-08-07T22:24:30+02:00
+ `& v! [: |4 A- ?# r
0 Y: c- o3 I& Uin_us = in_paris.in_timezone('America/New_York')4 o! ^0 [: |" D  e2 a+ Y: k
print(in_us)  # 2016-08-07T16:24:30-04:00
- |' D" F- _. E
$ \" \1 r8 W. K" A2 i十二、使用 Python 获得最后7个工作日2 u  W4 @6 v! r
from datetime import date, E/ {) B# N  T: i
from datetime import timedelta
8 _8 r/ Y  w" S! |" T9 ~1 W, D. L0 ?1 }8 f
today = date.today()! R0 _9 d2 P) _

* _. {6 k- Y9 Y9 \& G+ Ofor i in range(7):
9 F  z  P$ n& K4 k5 X7 i! O    d = today - timedelta(days=i)% ~$ C( `/ _4 w$ Y
    if d.weekday() < 5:  l$ `' [( l7 ^: w# n
        print(d): ~# e( N1 x# _* o2 B/ T

. |5 O1 ~/ x* n6 E& P/ ~1 F4 ~十三、从今天的日期和一个人的生日推算年龄
+ X3 _3 U0 u/ a7 i5 sfrom datetime import date/ h- c3 u. f4 j
/ _* I3 ?4 w% M0 T$ P
2 I+ j/ Z/ k, Y' l4 w& {
def calculate_age(born):" |& C9 p& K6 B3 |- u" l! S
    today = date.today(): d9 v: V( W& ^: S( R7 g2 m( ^1 A
    try:) l  K3 o! d. j, e+ ^, F
        birthday = born.replace(year=today.year)$ f5 D$ O  M3 U
    except ValueError:
/ F" B; B; o: @- V* C1 R3 N        birthday = born.replace(year=today.year, month=born.month + 1, day=1)
4 ]1 V/ h+ ]! @( r: W- ^    if birthday > today:
- a% {% e+ t0 l5 I        return today.year - born.year - 1, v3 e' k" }( k' S/ Q2 j. W
    else:( Q( _7 W" u$ Z, r& |2 A8 }
        return today.year - born.year+ O6 C0 W7 F$ p& Y  ~( \8 u4 F; W

5 w9 w# h$ K" _% r9 ^. t; n& k
1 h# Q. m$ c1 vprint(calculate_age(date(2001, 3, 1)))( s+ N8 v" u: s

& c! L) J6 I* V  R十四、获得本月的第一个星期二
: R* j0 \/ B' ~# Gimport calendar1 o% H% W2 E- Y
from datetime import datetime
7 C$ |3 o& c" a- C
3 c7 L# D! r! Q7 }! {- Uc = calendar.Calendar(firstweekday=calendar.SUNDAY)
& F4 C5 z! J, s( X5 zmonthcal = c.monthdatescalendar(datetime.today().year, datetime.today().month)+ W# K; l# {# O- h
#Python小白学习交流群:153708845  
) Q6 {! u3 L3 T3 ktry:
0 B; R! r- N$ e. y4 U    tues = [day for week in monthcal for day in week if7 n) r9 r5 t' y6 f6 [
            day.weekday() == calendar.TUESDAY and day.month == datetime.today().month][0]
. X0 _% Z/ s: z4 _    print(tues)# X, J3 B: o) K3 ]7 W1 [+ S) {- c
except IndexError:
( k/ `# g8 o+ g3 K! C) _    print('No date found')
+ m; O- N; X2 h/ u+ W" }
9 G& E( [0 G& L8 x! @" N十五、将整数转换为日期对象+ i- K! O; n  \5 N+ J
from datetime import datetime
9 z4 b$ u  x8 |& {7 h" y5 z( }
; H+ h0 g4 ]2 _i = 1545730073
1 z4 R" @% x; z. V) A1 c5 @timestamp = datetime.fromtimestamp(i)% \/ b* ~  Z+ l; I+ b5 y

; `; W7 H1 l! G* J8 W! |print(timestamp)  # 2018-12-25 14:57:532 Q  w% `3 Q- x
print(type(timestamp))
- }& V0 K6 d" G+ M* p3 e  D# S/ y+ y
十六、当前日期减去 N 天的天数
% s! Z3 C5 y, r% p9 zfrom datetime import datetime, timedelta
9 V( K5 i' v9 Q( C! `$ p" W. l# k/ Y# l0 }/ m# w7 r/ H1 y$ p" S8 F
d = datetime.today() - timedelta(days=5)
! t8 e( Z2 a1 ~print(d); x+ a0 I4 `, B2 _
" s  s8 s3 G9 Q1 M
十七、比较两个日期& q" [. X# u* [8 O
import datetime' W- M3 n# A' d8 h1 X/ L, b' P
# I1 O- j; p5 N2 a( V
a = datetime.datetime(2020, 12, 31, 23, 59, 59). ~/ W% m; _! ?/ t& M0 Z: ]
b = datetime.datetime(2020, 11, 30, 23, 59, 59)
- M  V' w) B# R- x; h
+ `& }, u9 G% u" g  K1 n6 kprint(a < b)
; Y+ Y0 Q' D# e& O; {  E. Pprint(a > b)  [$ G+ b2 c- A, e! c4 l
/ P4 U: R1 Q4 t& Y- r, j
十八、从 datetime 对象中提取年份
; n1 }, K, O1 B6 y5 Limport datetime$ h9 e9 S' f7 P9 ^' M

" u$ }3 r7 P6 [# l1 i: qyear = datetime.date.today().year
* J" h/ z8 ~9 {( aprint(year)
! t  O1 r2 S9 F2 O
7 h0 H( L' s, r2 |5 d6 ?4 q十九、根据日期找到星期几6 n! l; c& ~' {, B% J
import pendulum
4 G# H  @& P3 P9 u& V5 m; e$ a7 i
& Y' ]1 U- B8 @! M# Hdt = pendulum.parse('2021-05-18')
. z9 _; i8 F% O( s7 ~" jprint(dt.day_of_week)  # 21 M8 W9 q4 d& ]) E% G- c7 k, F
: A* p) S0 }* s1 t; g( S* @% w
dt = pendulum.parse('2021-05-01')
8 ~0 ~- s! W4 e7 g* x0 ~print(dt.day_of_week) # 6
  e$ {( k) \" p7 Z: E% D3 R1 v) S* p5 W/ C+ n
dt = pendulum.parse('2021-05-21')
; z1 |$ Y$ x1 p: {( `6 sprint(dt.day_of_week) # 55 _" y8 ~/ \$ Q/ C
: c- Z" Y3 l) q# w, z6 H- ?2 ]
二十、从当前日期获取 7 天前的日期; l. |" B4 \, j* G, B4 t5 }% Q6 T
from datetime import datetime, timedelta
; @1 Q$ y$ t3 ?. V9 S$ A- [: r4 R
now = datetime.now()) `& S4 t. O  k, k  _0 R: V

9 [: B9 z5 X% B, P( p8 P# Lfor x in range(7):7 R: {9 N0 C6 l' g  a
    d = now - timedelta(days=x)
/ g+ d% u# o: j" F, I8 Q0 z    print(d.strftime("%Y-%m-%d"))8 ]7 \% _) i! r$ @0 q) z& K
' M! U3 S3 S+ |
二十一、将两个日期时间对象之间的差值转换为秒
) y) r. t1 v  r% }0 }7 V2 uimport datetime# |/ x3 F4 O; f3 J8 F

  F$ r4 D( p  j6 w# e( Ttime1 = datetime.datetime.strptime('19 01 2021', '%d %m %Y')2 h5 ~, u. G1 h+ q+ ~
time2 = datetime.datetime.strptime('25 01 2021', '%d %m %Y')
( x% r. N! R) X" I. G, l+ y1 r0 l) ~/ b' o, P
difference = time2 - time1
: G% {% T7 O6 E, mprint(difference)  # 6 days, 0:00:00: q( ?+ p' r5 a
: x' d  o! K* _/ l# n8 d$ e2 w0 [* F
seconds = difference.total_seconds()
0 S& E1 j, w1 kprint(seconds)  # 518400.09 @! c, B" `' L- z+ V
" N- t1 q5 t- v& M* [8 q3 W1 }, p
二十二、获得任何一个月的第N个星期五' I$ `/ Q, b: `& A
import calendar
8 ]8 D% S, j2 e$ t* b/ X: K5 ?
! b0 h; c1 U: M2 {8 _  w# 取2021年5月的第三个星期五
" }) G0 Q+ _) t/ ]/ k: F6 Tc = calendar.Calendar(firstweekday=calendar.SUNDAY)' E3 _3 u! e8 M; Q4 b
year = 2021
( N6 l  j" \( z. T7 ymonth = 5
3 }! T6 p' k2 a- l" T3 q, {n = 2  # 取第三个% C6 V9 \9 y- [; T- R2 _! A
monthcal = c.monthdatescalendar(year, month)" t2 x/ g, K1 z" ]9 d, \' J
0 L7 R/ z/ J: L/ u' \! H
try:- q% Q4 }/ {# X9 `
    third_friday = [% k# ^$ E4 j! Z- ]/ R
        day for week in monthcal
5 ~6 u2 F1 x& _            for day in week if
) S6 f1 ]# V8 t+ |6 f                day.weekday() == calendar.FRIDAY and day.month == month0 I, V& E- {3 J9 g8 @
    ][n]) a5 ~% _9 B3 e9 S
    print(third_friday)  # 2021-05-216 n) Q( v0 o) m; T5 C  m1 h  ]% c5 \
except IndexError:- e, X+ s0 q8 y# P% v, t1 K
    print('No date found')
. [2 l, @% I* B' h% I& e+ r9 z# h/ j; T4 z) x/ ^/ d
二十三、根据周数获取日期: q& t8 S2 ~7 K9 \& m
import datetime
) D* N1 o( G; Z* ofrom dateutil.relativedelta import relativedelta4 E3 P& n; [0 T$ p6 U9 X6 c
& S! V- Z0 J& K; [$ d0 p; ^6 Z" E
week = 25
- w0 V0 R/ q9 D' b- K/ ]! p& V1 iyear = 2021
% d  y6 `/ Q3 V' _! g8 Pdate = datetime.date(year, 1, 1) + relativedelta(weeks=+week)
2 F9 L. g4 `5 Gprint(date)  # 2021-06-25
! s! ], d6 P/ m
9 l& b* `8 j3 u二十四、获取特定日期的工作日
: x. v" m1 B2 |6 u# rimport datetime+ |4 v! a; ^2 Q! p4 c

' O- w4 a9 k9 z0 j' Rprint(datetime.date(2020, 5, 15).isocalendar()[2])  # 5: U( h' z6 z0 p; w$ v$ A* ]4 C

/ w, Q3 E1 p7 _+ Y* I6 m0 @二十五、创建一个 15 分钟前的 DateTime: T+ b# o& @1 O1 ~/ b& j
import datetime$ h. r! N( D' c  x# W* w
#Python小白学习交流群:153708845  4 J- A3 {7 E4 l  w% l
dt = datetime.datetime.now() - datetime.timedelta(minutes=15)( n5 R  Z$ o4 }& U9 N& t; D
print(dt)  # 2021-05-15 22:25:55.8973657 S% @, x$ P2 z: y+ z# O
$ o0 s1 O& k5 a' U& [4 S5 o
二十六、从特定日期获取周的开始和结束日期
' N0 a8 B" |9 {+ b) iimport pendulum2 M) q+ X6 i7 L. w1 Y% T
( U$ m* ^; I: D# ]& C& b8 @( c
dt = pendulum.datetime(2012, 9, 5)
( B1 X0 |: x8 `1 S0 J( Y  b, C3 r' n; B. N5 b( U& E
start = dt.start_of('week')0 Y0 `3 l" Y' N* }
print(start.to_datetime_string())  # 2012-09-03 00:00:00
3 ]: P, _9 }' m5 ?$ W6 z3 l+ R6 H! u7 q2 A: K  l
end = dt.end_of('week')
/ B# A8 B0 m9 n' y/ p! k# Cprint(end.to_datetime_string())  # 2012-09-09 23:59:59  X+ u/ M6 ?- ~

7 t2 B$ i+ p6 A# ]" V二十七、两个日期之间的差异(以秒为单位)0 c$ h+ i: a1 t4 ]' L4 F0 }5 c
from datetime import datetime
" U* t6 q2 O# N: d! F#Python小白学习交流群:153708845
( a- E% p( }, J$ u1 Z: afmt = '%Y-%m-%d %H:%M:%S'
9 p( z& {) p7 [! Od1 = datetime.strptime('2020-01-01 17:31:22', fmt)( Z; Y0 F3 |4 |8 t( g$ a. ?+ M
d2 = datetime.strptime('2020-01-03 17:31:22', fmt)3 m! N! o) `8 O. Y$ g; W
. N2 u, J5 d2 t
days_diff = d2 - d17 ]* A! k4 ~* S1 i# x
print(days_diff.days * 24 * 60 * 60)  # 1728005 U; Q& E4 o$ c" C; n3 q: c

2 D5 h+ J" |, E二十八、以这种格式获取昨天的日期MMDDYY5 O0 Q# }& I$ f5 K* d6 Z! t4 Q. }
from datetime import date, timedelta
! I3 C; Z: w$ }7 U; }
) X; n! z5 B2 p( kyesterday = date.today() - timedelta(days=1)
( u& g" u; X# P7 P1 y; t, \+ cprint(yesterday.strftime('%m%d%y'))  # 0514211 T+ N8 U' _, k0 @

( j. r6 p, \5 O- \! S二十九、根据今天的日期获取上周三的日期
) [7 D# k) W% }from datetime import date
/ @! \/ ~1 f  d7 D1 X- T- Cfrom datetime import timedelta% k0 Y  y- \9 ?1 _* I
4 `: G5 o# S1 J) t" {& a
today = date.today()6 ]! o( q$ P2 w) n2 B( j9 P

. F8 X% C: |0 S5 h* x7 Koffset = (today.weekday() - 2) % 78 k) x3 Z3 g6 ?' T; F$ o
wednesday = today - timedelta(days=offset)1 g' F0 P2 }3 Z) D5 H
print(wednesday)  # 2021-05-12
7 O: L# b5 h7 E. d. u5 I: W3 H# M# s4 d" c, [& T; j( n' S. v
三十、所有可用时区的列表打印
" L  n# R9 p% uimport pytz9 e; q' U7 M$ G4 V( m) E
' m- t+ p+ u# c" Q7 R% j2 Y- p
for i in pytz.all_timezones:
  \( L; M; G4 d8 f! h6 w  {    print(i)
8 E6 M5 U/ R2 ~8 k* I# z5 F" a$ f7 ~# a+ ^
  Y+ q: }" h6 C% n

. l- Q! t2 D3 Y9 x* [
zan
转播转播0 分享淘帖0 分享分享0 收藏收藏0 支持支持0 反对反对0 微信微信
您需要登录后才可以回帖 登录 | 注册地址

qq
收缩
  • 电话咨询

  • 04714969085
fastpost

关于我们| 联系我们| 诚征英才| 对外合作| 产品服务| QQ

手机版|Archiver| |繁體中文 手机客户端  

蒙公网安备 15010502000194号

Powered by Discuz! X2.5   © 2001-2013 数学建模网-数学中国 ( 蒙ICP备14002410号-3 蒙BBS备-0002号 )     论坛法律顾问:王兆丰

GMT+8, 2025-12-6 20:16 , Processed in 0.887639 second(s), 50 queries .

回顶部