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使用 time 模块展示当前日期和时间2 J5 S' J; r4 g- T
import time
* c# d) g1 T, K1 p# u: c* g+ Lfrom time import gmtime, strftime
' v0 k, C- x% h2 [ X0 i% l$ A" u- [( M+ J* T$ b
t = time.localtime() t/ ?$ |+ }5 Q& o& {# Z
print (time.asctime(t)) # Sun May 7 09:30:37 2017
7 s# z8 H/ s% z G" U9 J" ?print(strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime())) # Sun, 07 May 2017 04:00:37 +0000
/ q' ~) j) G+ C; mprint(strftime("%A", gmtime())) # Sunday. P( F, V/ u0 O F
print(strftime("%D", gmtime())) # 05/07/17) o% z+ n ^6 P- v4 R) j
print(strftime("%B", gmtime())) # May2 j# |6 m# p6 Y7 r% n
print(strftime("%y", gmtime())) # 17$ K: @) O4 h8 ^2 J! o- Z. W
, s. J8 s1 Z9 }3 u& r; o. \9 a* i7 L
# Convert seconds into GMT date
+ F" i" c' W, x+ jprint(strftime("%a, %d %b %Y %H:%M:%S +0000", gmtime(1234567890))) # Fri, 13 Feb 2009 23:31:30 +0000
% X% n3 R3 J; j4 q5 U* R
0 ?# T' M- E" P6 _* \二、将天、小时、分钟转换为秒
) b" ]) E7 q& N0 ?SECONDS_PER_MINUTE = 60
( U5 k" y" `! V. A2 A+ C4 j2 m2 xSECONDS_PER_HOUR = 3600
! }$ x5 D* ] h: X! k7 HSECONDS_PER_DAY = 86400. {; c T6 ^- z5 i- n0 d
: `6 `1 u( K" k C4 g% Y
# 输入天、小时、分钟、秒的数量! Y+ `- {, S9 M5 E# y w: s
days = int(input("Enter number of Days: ")); s( i. g) V5 D5 t
hours = int(input("Enter number of Hours: ")) T% I L. Y( I/ a$ D1 H2 b, r
minutes = int(input("Enter number of Minutes: "))6 x+ t1 r& S) [5 l
seconds = int(input("Enter number of Seconds: ")) W; ^' s0 w( L" T6 g' D9 l
# X0 ]6 I4 k: m$ c
# 计算
2 Q" p9 @8 b% j6 w* Y* ~total_seconds = days * SECONDS_PER_DAY2 u8 l* }! H0 I7 a1 r& z0 U2 k, `
total_seconds = total_seconds + ( hours * SECONDS_PER_HOUR)
5 ^/ ^/ t: R7 k& W0 d Stotal_seconds = total_seconds + ( minutes * SECONDS_PER_MINUTE)
, @! @3 B& U g7 V8 y! ~4 t) k1 Htotal_seconds = total_seconds + seconds
2 z& U, j& d3 k8 Z# w
; v6 C/ \' a; k) a0 B Z# 结果
+ _& p7 l2 ?6 w9 H% h4 b! `8 h5 z, j6 ~print("Total number of seconds: ","%d"%(total_seconds)), }. m( T5 q1 M/ U& o
'''
# D* v9 ^. `. }: n6 t+ N) sEnter number of Days: 5
" b: H7 s r( V9 _* _7 b( h7 oEnter number of Hours: 361 G/ \2 w3 N, x5 ]) ]
Enter number of Minutes: 24
7 z6 O1 F- F J# sEnter number of Seconds: 15$ `! A: o% S/ m5 i' O
Total number of seconds: 563055
* Q+ s- W. m: z" w; m3 C'''8 X9 M$ \0 x! W4 L g& {# |: l0 e
* w% c) d1 Z' A, z9 ?, q三、使用 Pandas 获取当前日期和时间
3 i( B2 R' _$ X' T$ d: mimport pandas as pd
6 D4 |# g r+ S2 v/ i; o( Uprint(pd.datetime.now()) # 2018-01-19 16:08:28.393553
/ B) {3 y) i3 Eprint(pd.datetime.now().date()) # 2018-01-19( j, y0 [( O+ v. x
print(pd.datetime.now().year) # 2018% t- }) ?' r+ P. B% k4 m Y- P
print(pd.datetime.now().month) # 1& _7 h7 D' h n+ a
print(pd.datetime.now().day) # 19% D: W- `0 z5 k' ^9 ~2 n" T
print(pd.datetime.now().hour) # 16$ D. y) d+ D, z0 B, E( g4 k. |# s A. f
print(pd.datetime.now().minute) # 82 C0 u3 r9 b# V! w- N) C
print(pd.datetime.now().second) # 28
5 Z# t* T! |9 ~8 H6 J: ~' zprint(pd.datetime.now().microsecond) # 3945533 W. u5 s2 Q! D
& @9 g( u7 r9 |% L四、将字符串转换为日期时间对象* L! O( m& _( V2 H
from datetime import datetime( `8 j# R( c' R% X
from dateutil import parser- h m2 F% X; r+ B. K
, ]6 f1 ]0 Z6 k I2 Sd1 = "Jan 7 2015 1:15PM"8 ^# _: L+ p3 S9 w; Q
d2 = "2015 Jan 7 1:33PM"
: S- x, r) g6 c! s, N `. D& x1 B& K h, p
# If you know date format
% A6 z" D7 S# |1 Jdate1 = datetime.strptime(d1, '%b %d %Y %I:%M%p')$ |, T G, H, Q, e- Q% f/ `, n
print(type(date1)) # class 'datetime.datetime'
$ l4 G3 [- F% D/ E2 |* U1 rprint(date1) # 2015-01-07 13:15:00
/ U5 B9 z3 [8 m. K L- @# F" Y+ U& K- F+ W
# If you don't know date format6 U+ L: j3 S! H b1 A- h
date2 = parser.parse(d2)
' w/ S, O% N& h- w P+ w D$ kprint(type(date2)) # class 'datetime.datetime': I$ v. J! j4 i6 ~0 d5 |& k
print(date2) # 2015-01-07 13:33:00+ v8 o7 k1 m4 Y% U: \1 S6 R1 u9 ?
0 T' v+ j6 }3 ?3 I) b) ~. M$ w- Q
五、以毫秒为单位获取当前时间
j% Q" B# J9 f) B& Cimport time
) t( S! o5 B/ Z5 W% \( v! Q6 O
milliseconds = int(round(time.time() * 1000))4 p: v4 w1 X; _ v1 ^' @
print(milliseconds) # 15163642706504 N' P O0 W5 U8 w1 _- h: C
5 o2 p, `. ]7 ?6 Q9 f& Y
六、以 MST、EST、UTC、GMT 和 HST 获取当前日期时间
# a6 E) A: J# F* L lfrom datetime import datetime6 j$ Y; { q) w+ X% v7 A+ n
from pytz import timezone7 A4 l W* ^* J# X
' |$ @/ ~! d; ]# `0 ^' I. D- w( y$ Lmst = timezone('MST')) L8 b" ^2 ~4 r) C
print("Time in MST:", datetime.now(mst)) # Time in MST: 2017-01-19 06:06:14.495605-07:00' U' }0 q& P3 t8 S4 w: X" R
est = timezone('EST')6 v# O( }% F' d9 D5 Q$ M6 ~% \
print("Time in EST:", datetime.now(est)) # Time in EST: 2017-01-19 08:06:14.496606-05:00
2 x2 n" c: m9 P5 d% autc = timezone('UTC')- M; u$ D Z, {. h( C( d
print("Time in UTC:", datetime.now(utc)) # Time in UTC: 2017-01-19 13:06:14.496606+00:00
6 r; @ \& _4 N: ngmt = timezone('GMT')
0 ^& g7 C+ h, p. y. P: B8 s& @print("Time in GMT:", datetime.now(gmt)) # Time in GMT: 2017-01-19 13:06:14.496606+00:00! T" D% T9 j1 A+ k+ u$ |. \7 g" g
hst = timezone('HST')9 B( A7 A$ t0 l7 e7 D$ `) L2 w
print("Time in HST:", datetime.now(hst)) # Time in HST: 2017-01-19 03:06:14.497606-10:00# a3 X8 l! c0 {: ^* u/ _
v% h4 C' X n/ \) g七、从给定的日期当中获取星期几
! s( h1 z- y; C1 |6 @import datetime
; e! {( @3 C6 _$ Q: B# M% m+ r
( s7 } q! t) w, l [6 ^ edayofweek = datetime.date(2010, 6, 16).strftime("%A")
' n+ k' \ p4 P- ?- U" Y$ oprint(dayofweek) # Wednesday
) e8 y+ C& a3 j$ c$ j# ?- N8 |9 v, F0 e$ ], C q. h
# weekday()方法: 0代表周一,6代表周日
* S0 ?! W0 z* C: j6 Iprint("weekday():", datetime.date(2010, 6, 16).weekday()) # weekday(): 2) k3 i) \9 h; t7 C4 o$ ^ @
. ~ B% _9 o4 g# isoweekday() 方法: 1代表周一,7代表周日
8 `8 Y8 y$ R/ k& [" `. W5 Nprint("isoweekday()", datetime.date(2010, 6, 16).isoweekday()) # isoweekday() 3
6 a) E4 K. t# H- g+ [3 _6 e7 V
" y" F$ x. C2 W: U. Ddayofweek = datetime.datetime.today().strftime("%A")( i$ _( n& r; D' A, M
print(dayofweek) # Friday9 n* D b8 ?3 n$ @8 G) P
print("weekday():", datetime.datetime.today().weekday()) # weekday(): 4) D$ ?) S9 o6 S
print("isoweekday()", datetime.datetime.today().isoweekday()) # isoweekday(): 5
9 N5 I+ ]5 C' _/ O/ A) {& l& s# J" K/ z* p
八、计算两个日期时间对象之间的时差
1 m) u {1 g3 a$ M. ^/ G; N0 a0 simport datetime
3 f/ N; W/ t% M: c4 efrom datetime import timedelta+ ]9 ?: h3 f; d
& j- _* C; t6 E5 E2 E; B
datetimeFormat = '%Y-%m-%d %H:%M:%S.%f'5 Z6 ]& n8 |) g2 `8 b' X
date1 = '2016-04-16 10:01:28.585'
9 V$ n6 y- s3 ^ adate2 = '2016-03-10 09:56:28.067'
w. O; K) l6 l) z- V7 ]8 b3 w7 Rdiff = datetime.datetime.strptime(date1, datetimeFormat)\
" ?8 d+ ^6 j4 y# W4 | - datetime.datetime.strptime(date2, datetimeFormat)
4 U5 J P4 N& l4 J7 ~2 x. H2 P4 y
( m: e$ \- E/ B* i% {' n `; P0 rprint("Difference:", diff) # Difference: 37 days, 0:05:00.518000
, {4 h4 Z4 J+ D$ l8 P9 sprint("Days:", diff.days) # Days: 37
! q3 g4 T- C- n: D! t3 Rprint("Microseconds:", diff.microseconds) # Microseconds: 5180004 t8 Q9 @0 v5 P8 x' i( A" H- T
print("Seconds:", diff.seconds) # Seconds: 300
1 ]4 J! P$ e+ i, E2 b! _7 C
( d# r8 L2 L: ]# ?6 i九、将 5 分钟添加到 Unix 时间戳8 U W6 E+ ?) T/ n$ E
import datetime
# X& C2 c a8 F9 Iimport calendar: k! c2 U- l, { e8 G' g
3 D6 a+ l3 K3 _3 Z5 I
future = datetime.datetime.utcnow() + datetime.timedelta(minutes=5)! b' C% s) C* `7 _( D! E% g/ k( Z. ]
print(calendar.timegm(future.timetuple())) # 1621069619
1 c% F# P8 O5 C( q6 z8 s2 E
7 w0 p) p3 v6 T2 a. x# [- u' _ w. W十、遍历一系列日期1 i8 C( h& S/ A4 y- o
import datetime0 {" d$ H3 j2 }) T7 \* t) q7 F
' m: r- v5 k# L9 ^0 U; qstart = datetime.datetime.strptime("21-06-2020", "%d-%m-%Y")
. e) f- A8 [3 c! o3 R. \- e) uend = datetime.datetime.strptime("05-07-2020", "%d-%m-%Y")
0 U5 g; }0 o- K( T, C- ~date_generated = [start + datetime.timedelta(days=x) for x in range(0, (end - start).days)]
; i/ ^- L0 k3 n# f
; p. L3 \& r) `# C) dfor date in date_generated:( H; D+ @' Z3 d+ F
print(date.strftime("%d-%m-%Y"))
/ S2 I1 t; d5 L0 w- x+ H0 j! g, c* v. t: K2 N
十一、巴黎时间更改为纽约时间
4 x5 ?9 K+ x2 Yimport pendulum
! o. c( w+ Y- V6 W6 Z( F s1 Q& u5 w/ q+ I& P7 R1 N$ A; f6 i( R$ r
in_paris = pendulum.datetime(2016, 8, 7, 22, 24, 30, tz='Europe/Paris')
f/ S, R2 N+ i; H% Vprint(in_paris) # 2016-08-07T22:24:30+02:00
' o5 K, X8 @# |1 i: J+ E) }6 b+ W, V* f' B
in_us = in_paris.in_timezone('America/New_York')
x, i- K1 Q+ C- m" W1 X" Oprint(in_us) # 2016-08-07T16:24:30-04:00
4 l; d. c+ V' ?. T$ x* [" P) y% Q0 o" o
十二、使用 Python 获得最后7个工作日
P( {+ _' v. U1 Gfrom datetime import date
% D7 d* ^$ V: q; pfrom datetime import timedelta
, j% s) n M9 c9 V+ ^4 {# J( G
today = date.today()% ^! m1 G% m# D
1 p( Y3 x' ]$ _for i in range(7):
1 c% Y4 Z% F9 `* }) {1 _ d = today - timedelta(days=i)" m) ? s2 `; h$ B/ |# T" x O
if d.weekday() < 5:* G. r6 [( y0 G" S) }
print(d)
3 q* ^+ E+ }4 L8 A$ T8 S6 z; y% {% x# k' d9 F: E
十三、从今天的日期和一个人的生日推算年龄. t1 R6 q% k3 u4 R, r$ {4 j
from datetime import date
9 m; Z' Z/ r+ U8 W2 G; _
( b/ |/ B& ~' k. w7 y: D7 S2 u8 {, n
def calculate_age(born):
7 W/ n$ \" i; m$ f/ u. n) Z today = date.today()
. @1 z7 F! R( ^6 c try:' t, W4 q3 C0 B; w, W4 z% I; H2 J
birthday = born.replace(year=today.year)
9 |% Y* K: A6 E. s8 I1 _ except ValueError:
3 J! {5 O& G7 \; w5 x# h birthday = born.replace(year=today.year, month=born.month + 1, day=1) f" b/ [8 Q8 A; b4 \- c
if birthday > today:
2 C" w0 p5 |. q/ [* J3 { return today.year - born.year - 1
! e; R8 m, ^3 o7 B/ a% P else:
% S+ E6 \& n( O5 K$ l return today.year - born.year: C- J1 l+ D+ t4 U5 p6 F# Y; |
' F8 H' H) S$ {1 d, k B! T
- j7 r& v0 {! G5 vprint(calculate_age(date(2001, 3, 1)))
, q a A8 d; w# _
" d# ]! \9 s* j6 j+ ^" l8 A十四、获得本月的第一个星期二
/ @' E$ {# t* j' B! bimport calendar3 h- b; J0 |7 |3 a5 ^& w- d
from datetime import datetime$ w9 @3 Z. M1 c, e
- _- ]7 A! n6 s- y& Nc = calendar.Calendar(firstweekday=calendar.SUNDAY). l: E' Z9 E2 I% R5 @/ e1 m" Q
monthcal = c.monthdatescalendar(datetime.today().year, datetime.today().month)
. P7 q2 z: G0 z( [5 o8 V6 }* Z#Python小白学习交流群:153708845 ' u* z! G6 n1 J3 e6 b
try:. O% h0 e- x/ s+ f L; ~; d+ B* s
tues = [day for week in monthcal for day in week if
! L6 H. M1 C! ? }# P2 j day.weekday() == calendar.TUESDAY and day.month == datetime.today().month][0]. P; `; }+ c/ d+ r
print(tues)1 S& a, G! H) Q. J- S! g% w
except IndexError:
, ~2 s: }) t. q( h# G print('No date found')
; D; ~' [2 v8 K' X
: \* O- k3 N3 n/ e+ B十五、将整数转换为日期对象
+ t; }2 t0 Z: b; y5 U! W1 Y& Afrom datetime import datetime
; ]3 s: W3 f' Q
$ |0 N( l7 E: {/ P" ~i = 15457300734 _* L, `, s# f9 }: l, c
timestamp = datetime.fromtimestamp(i)
. I8 R9 N$ y ?1 }
: s- N/ v3 ~' \- [print(timestamp) # 2018-12-25 14:57:53" W* R/ `$ T- U2 Y8 y# v7 X
print(type(timestamp))9 P3 T* A2 g- v0 d: p0 z9 l
: e" v7 G' J; H. p+ J+ t
十六、当前日期减去 N 天的天数' k2 J2 l: Z. }6 M0 p2 e
from datetime import datetime, timedelta
3 R+ b4 z5 E" i0 f( @- T d& M/ `8 w6 \ F; s
d = datetime.today() - timedelta(days=5)
2 b ~0 S1 L0 ]2 s1 p0 R# Lprint(d)
! C! I" _7 U4 V2 L
3 P9 g( u9 v( K; y, X3 _! V; |& z+ v十七、比较两个日期 M. {0 o4 S/ n$ y( D+ m
import datetime2 \. P" a/ q2 t* u! |- h
) s9 B% d: _2 S% L8 t
a = datetime.datetime(2020, 12, 31, 23, 59, 59)8 H3 Q$ C, L+ c) Q* P. ?
b = datetime.datetime(2020, 11, 30, 23, 59, 59)/ J& T, Y0 O0 d0 T* \9 N
2 Q- y1 s9 L: u
print(a < b)
+ G, f% m* D& j Iprint(a > b)" m/ F& U: V4 I
( [( H( ? o5 a. I/ z* O! R
十八、从 datetime 对象中提取年份
, c/ S- x7 d4 g, `0 y) }4 Jimport datetime
, k+ h" S' p! h+ g S% P) k" K- x, r- T
year = datetime.date.today().year; M2 P' s5 h% U
print(year)0 e2 u) ~7 r/ T
* {7 b2 E: A) S! u十九、根据日期找到星期几 ^$ b6 d' [+ R; d% ]
import pendulum% y' A3 @% T+ ~- @. O* ?
9 h+ S& H" {9 l4 E+ Z0 t0 c0 Tdt = pendulum.parse('2021-05-18')
. s8 U" @! K/ f* O" Y& Q* v, @print(dt.day_of_week) # 2
1 v8 B: B1 G$ @& O% N& A0 G) y# N! z; B8 z. @! \1 c$ [
dt = pendulum.parse('2021-05-01')
0 L# f, O. S7 R' q$ K9 c% Wprint(dt.day_of_week) # 6
S/ n. |2 N- w; o9 V8 Z+ e ~3 U H5 F( G. O, w8 t! j
dt = pendulum.parse('2021-05-21')& _1 L0 ?9 F$ a& Q% }0 D) F9 p, G
print(dt.day_of_week) # 5
0 r- V4 S1 G8 T. [& O! e! t0 A; ~, K$ J W- o" U% ?* x
二十、从当前日期获取 7 天前的日期
0 z) w- l9 k' n; f# d! X5 Efrom datetime import datetime, timedelta
7 F5 e. i. Q! O1 N0 p, L* v; o
now = datetime.now()* {' k; i" V/ i" m2 }9 G
2 F3 E' H2 H) D- S& i
for x in range(7):; B% B+ Q% {( ?6 w
d = now - timedelta(days=x)4 i; C# _+ ^, r }5 J' N
print(d.strftime("%Y-%m-%d"))
2 N- l$ T/ }( s2 [) S3 |, t
5 n0 E" T. \/ Y3 t' n8 H4 L二十一、将两个日期时间对象之间的差值转换为秒6 E0 Z' H( r7 D
import datetime
* D0 N6 C4 W9 M9 `, P: ?8 P) e
% B) D1 k( _# M- f) ^9 k, Atime1 = datetime.datetime.strptime('19 01 2021', '%d %m %Y')
# g! b4 C% l# O- Ztime2 = datetime.datetime.strptime('25 01 2021', '%d %m %Y')
- Z- @) a( s+ k& k/ I" {' Q- \1 b0 C1 [ _
difference = time2 - time1: g: c0 S! ]% _
print(difference) # 6 days, 0:00:00$ e" ?: F4 v$ w* k: G
0 t) H9 O1 C6 }( n8 }seconds = difference.total_seconds()
) F. }" ], h5 L2 cprint(seconds) # 518400.0! w4 h) n$ ~) u8 E/ t ~- D9 l
. L# t- Y/ E1 O- y9 N# ^% D二十二、获得任何一个月的第N个星期五
' h: ^8 m$ X. M2 E" `import calendar
+ C- L" R! T# |. @" u8 o+ i+ h: O0 V$ P" [0 L
# 取2021年5月的第三个星期五1 k l% V+ i( V( b! ^) ^
c = calendar.Calendar(firstweekday=calendar.SUNDAY)
i1 V4 G) [( T) h" e+ Syear = 2021
0 t) f) y5 h* ` _. vmonth = 5
( Y: f$ Q: G2 [6 V, An = 2 # 取第三个
; g c' A V* Y8 ?) k0 g' d: Zmonthcal = c.monthdatescalendar(year, month)
5 { p6 ^$ l2 w+ Q, I
, C& a) u: V+ T, Y& k/ Ktry:
; e$ x& H! H e# T; N3 x third_friday = [
' Z4 g* i% y1 `) e ?/ R day for week in monthcal 5 y2 f2 ~3 e {% E
for day in week if
/ D! h i/ ~' {) [ day.weekday() == calendar.FRIDAY and day.month == month
. f5 g/ a% L% Q& x b8 h f& o ][n]% O) D5 Z9 ^( {1 a4 p# d) F
print(third_friday) # 2021-05-21. e+ _& i: M5 E6 G, ~
except IndexError:7 i9 @% _+ `! O& h6 b" u
print('No date found')
9 Q' [* h# D# h6 ~5 l! ^. N% D3 r0 ]' O5 P0 h
二十三、根据周数获取日期! l! w, n/ S4 u! ?/ p4 `4 @9 o
import datetime
& S+ T6 v3 q# e; O- ^from dateutil.relativedelta import relativedelta4 F9 i( i+ D) E1 f k* {; V
+ ~+ T/ l9 h5 q* h+ w$ m n5 G/ @week = 25
7 s8 g7 c6 B O6 ?9 {% p; Pyear = 20213 K8 v# G: Y# N4 L# G
date = datetime.date(year, 1, 1) + relativedelta(weeks=+week)2 D8 }4 H0 P) A( F) C
print(date) # 2021-06-25- E& @5 l* t- \3 L b+ C( }: V
# d2 n l: y* D; k3 H" \
二十四、获取特定日期的工作日% m) }. ]9 ]" M# W2 ^: K4 d
import datetime
# w! g$ } l0 c1 g7 w& g9 i
% _* |* j$ d7 d- J. \1 y7 g. vprint(datetime.date(2020, 5, 15).isocalendar()[2]) # 5
+ o7 C: `( J5 e3 [( L
( }% ?' l$ g& t" r) {4 H; e& q二十五、创建一个 15 分钟前的 DateTime7 C, T. ~# ?9 n6 Z/ Y) m @' D
import datetime. h7 }) X1 B v8 p1 B
#Python小白学习交流群:153708845 4 S/ g4 Z+ W, U( @5 Q+ t
dt = datetime.datetime.now() - datetime.timedelta(minutes=15)
, H- U" z# P0 g3 @# Y6 D7 Oprint(dt) # 2021-05-15 22:25:55.897365 G- p; D- I2 o& D0 Y( P0 n
+ L* B5 }" I; A- _7 [% B9 V4 ?
二十六、从特定日期获取周的开始和结束日期
; T$ q% q( a8 \$ P7 U' Uimport pendulum3 h" h0 r; ?0 r' p. K0 o3 O0 {
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dt = pendulum.datetime(2012, 9, 5)
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start = dt.start_of('week')
& V5 z: d( G4 M9 u8 ?print(start.to_datetime_string()) # 2012-09-03 00:00:00
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3 E. i% x6 j/ fend = dt.end_of('week')# z8 u2 T5 G0 G8 w
print(end.to_datetime_string()) # 2012-09-09 23:59:59
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4 N" Q; Z2 P# J( z7 h K; |二十七、两个日期之间的差异(以秒为单位)0 S* X' o: M9 m! t+ T( P
from datetime import datetime
: ]! ?4 n, M. z. K#Python小白学习交流群:153708845 ' O% @: Q* S2 Y) P4 W
fmt = '%Y-%m-%d %H:%M:%S'5 n0 ^7 _2 F* A& H1 W
d1 = datetime.strptime('2020-01-01 17:31:22', fmt)
8 w" C% v! `! t A5 Dd2 = datetime.strptime('2020-01-03 17:31:22', fmt)0 S+ p" E. }; s0 _- Z
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days_diff = d2 - d12 S! J+ N$ P' C
print(days_diff.days * 24 * 60 * 60) # 1728009 L( z9 ?- U- N# g
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二十八、以这种格式获取昨天的日期MMDDYY4 @( M+ G8 v0 J8 G1 ~) z
from datetime import date, timedelta$ y9 h% ]. y0 j0 X6 A( T
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yesterday = date.today() - timedelta(days=1)
5 \. }+ k0 M6 ^ qprint(yesterday.strftime('%m%d%y')) # 051421: A3 |& u8 E: ]; W3 A' k6 z7 C
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二十九、根据今天的日期获取上周三的日期
& W0 m5 {/ D2 T1 r2 e) G; Tfrom datetime import date0 Z/ `5 y( I' ~+ m/ |3 K
from datetime import timedelta
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today = date.today()( {+ u: y7 P( g6 m3 Q* d- Y! W
8 y, C( N" f% t/ h1 r! e: Woffset = (today.weekday() - 2) % 78 h8 m5 O7 A& i$ s" l
wednesday = today - timedelta(days=offset)
; c* i2 \% _3 ~( ]5 i8 _4 iprint(wednesday) # 2021-05-122 O. d6 B+ }( J1 v6 R5 T& \( }! G+ ^- o
% y7 A' F) ] A5 Z. e! K三十、所有可用时区的列表打印* y$ |. l& E1 j1 s: N' A
import pytz- ^ S' ~1 ]& ~& D" M
6 p9 V# d' Z6 }; k5 b& R# X! S2 K6 Zfor i in pytz.all_timezones:/ ~! o) k: h7 O, y
print(i)
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