Python|仅需6道题轻松掌握Python时间和日期处理 | Python技能树征题


仅需6道题轻松掌握Python时间和日期处理 | Python技能树征题

    • 0.前言
    • 1. 第 1 题:时间单位转换
    • 2. 第 2 题:日期与时间运算
    • 3. 第 3 题:查找指定日期的后一个周日的日期
    • 4. 第 4 题:计算指定月份的日期范围
    • 5. 第 5 题:将字符串转换为日期
    • 6. 第 6 题:与时区相关的时间问题
    • 试题代码地址

0.前言 时间和日期处理,是许多应用程序中绕不开的问题,例如日期与时间的转换、判断给定日期是周期等等问题,为了方便的处理上述问题,Python 中内建的许多标准库(例如 timedatetime 等)进行相关处理,接下来我们就通过 5 道编程题来掌握这些处理时间和日期的方法吧!
1. 第 1 题:时间单位转换 知识点描述:时间转换,比如天到秒,小时到分钟等的转换。
问题描述:请从以下选项中选出能够将 3 天 6 小时 30 分 转化为秒的程序:
A.
from datetime import timedelta days = 3 hours = 6 minutes = 30 result = timedelta(days=days, hours=hours, minutes=minutes).seconds print(result)

B.
from datetime import timedelta days = 3 hours = 6 minutes = 30 result = timedelta(days=days, hours=hours, minutes=minutes).total_seconds print(result)

C.
from datetime import timedelta days = 3 hours = 6 minutes = 30 result = timedelta(days=days, hours=hours, minutes=minutes).microseconds print(result)

D.
from datetime import timedelta days = 3 hours = 6 minutes = 30 result = timedelta(days=days, hours=hours, minutes=minutes).microseconds / 1000 print(result)

正确答案: A
2. 第 2 题:日期与时间运算 知识点描述:日期和时间处理问题。
问题描述:请从以下选项中选出能够计算日期间相隔天数的答案:
A.
from datetime import datetime day_1 = datetime(2018,1,1) day_2 = datetime(2021,10,4) result = (day_1 - day_2).days print(result)

B.
from datetime import datetime day_1 = datetime(2018,1,1) day_2 = datetime(2021,10,4) result = (day_2 - day_1).days print(result)

C.
from datetime import datetime day_1 = datetime(2018,1,1) day_2 = datetime(2021,10,4) result = day_1 - day_2 print(result)

D.
from datetime import datetime day_1 = datetime(2018,1,1) day_2 = datetime(2021,10,4) result = day_2 - day_1 print(result)

正确答案: B
3. 第 3 题:查找指定日期的后一个周日的日期 知识点描述:查找指定日期下一次星期日期出现的日期,比如 2021 年 10 月 3 日 的下一个星期日。
问题描述:计算 2021 年 10 月 3 日后一个星期日的日期,请从以下选项中选出你认为正确的答案:
A.
from datetime import datetime, timedelta date = datetime(2021, 10, 3) weekdays = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'] def get_day(dayname, date): day_num = date.weekday() day_num_target = weekdays.index(dayname) days_ago = (7 + day_num - day_num_target) % 7 target_date = date + timedelta(days_ago) return target_date result = get_day('Sunday', date) print(result)

B.
from datetime import datetime, timedelta date = datetime(2021, 10, 3) weekdays = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'] def get_day(dayname, date): day_num = date.weekday() day_num_target = weekdays.index(dayname) days_ago = (7 + day_num - day_num_target) / 7 if days_ago == 0: days_ago = 7 target_date = date + timedelta(days_ago) return target_date result = get_day('Sunday', date) print(result)

C.
from datetime import datetime, timedelta date = datetime(2021, 10, 3) weekdays = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'] def get_day(dayname, date): day_num = date.weekday() day_num_target = weekdays.index(dayname) days_ago = (7 + day_num - day_num_target) // 7 if days_ago == 0: days_ago = 7 target_date = date + timedelta(days_ago) return target_date result = get_day('Sunday', date) print(result)

D.
from datetime import datetime, timedelta date = datetime(2021, 10, 3) weekdays = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday'] def get_day(dayname, date): day_num = date.weekday() day_num_target = weekdays.index(dayname) days_ago = (7 + day_num - day_num_target) % 7 if days_ago == 0: days_ago = 7 target_date = date + timedelta(days_ago) return target_date result = get_day('Sunday', date) print(result)

正确答案: D
4. 第 4 题:计算指定月份的日期范围 知识点描述:计算指定月份的日期范围,打印指定月份中所有日期。
问题描述:请从以下选项中选出可以打印出 2021年 10 月份所有日期(日期格式示例如下:2021-10-01)的答案:
A.
from datetime import datetime, date, timedelta import calendar def print_month_range(year, month): start_date = datetime(year, month, 1) _, days_in_date = calendar.monthrange(start_date.year, start_date.month) for i in range(days_in_date): print(start_date) start_date += timedelta(days=i) print_month_range(2021, 10)

B.
from datetime import datetime, date, timedelta import calendar def print_month_range(year, month): start_date = datetime(year, month, 1) _, days_in_date = calendar.monthrange(start_date.year, start_date.month) for i in range(days_in_date): next_date = start_date + timedelta(days=i) print(next_date) print_month_range(2021, 10)

C.
from datetime import datetime, date, timedelta import calendar def print_month_range(year, month): start_date = datetime(year, month, 1) _, days_in_date = calendar.monthrange(start_date.year, start_date.month) for i in range(days_in_date): next_date = start_date + timedelta(days=i) print(next_date.date()) print_month_range(2021, 10)

D.
from datetime import datetime, date, timedelta import calendar def print_month_range(year, month): start_date = datetime(year, month, 1) _, days_in_date = calendar.monthrange(start_date.year, start_date.month) for i in range(days_in_date+1): next_date = start_date + timedelta(days=i) print(next_date.date()) print_month_range(2021, 10)

正确答案: C
5. 第 5 题:将字符串转换为日期 知识点描述:将字符串转变为 datetime 对象,以便进行日期操作。
问题描述:请从以下选项中选出能够正确将字符串 “2021-10-03” 转变为 datetime 对象的程序:
A.
from datetime import datetime def string_to_datetime(string): date_obj = datetime.strptime(string, '%Y%m%d') return date_obj string = '2021-10-03' result = string_to_datetime(string) print(result)

B.
from datetime import datetime def string_to_datetime(string): date_obj = datetime.strptime(string, '%Y %m %d') return date_obj string = '2021-10-03' result = string_to_datetime(string) print(result)

C.
from datetime import datetime def string_to_datetime(string): date_obj = datetime.strptime(string, '%Y-%M-%D') return date_obj string = '2021-10-03' result = string_to_datetime(string) print(result)

D.
from datetime import datetime def string_to_datetime(string): date_obj = datetime.strptime(string, '%Y-%m-%d') return date_obj string = '2021-10-03' result = string_to_datetime(string) print(result)

【Python|仅需6道题轻松掌握Python时间和日期处理 | Python技能树征题】正确答案: D
6. 第 6 题:与时区相关的时间问题 知识点描述:时区间的相互转换。
问题描述:2019 年 4 月 29 日上午 9 时,2019 北京世界园艺博览会开园,请问以下哪个程序可以正确计算博览会开园时芝加哥时间:
A.
from datetime import datetime from pytz import timezone beijing = datetime(2019, 4, 29, 9, 0) central = timezone('Asia/Shanghai') loc_date = central.localize(beijing) target_date = loc_date.astimezone(timezone('US/Central')) print(target_date)

B.
from datetime import datetime from pytz import timezone beijing = datetime(2019, 4, 29, 9, 0) central = timezone('Asia/Shanghai') loc_date = central.localize(beijing) target_date = timezone('US/Central') print(target_date)

C.
from datetime import datetime from pytz import timezone beijing = datetime(2019, 4, 29, 9, 0) central = timezone('Asia/Shanghai') loc_date = central.localize(beijing) target_date = central + loc_date.astimezone(timezone('US/Central')) print(target_date)

D.
from datetime import datetime from pytz import timezone beijing = datetime(2019, 4, 29, 9, 0) central = timezone('Asia/Shanghai') loc_date = central.localize(beijing) target_date = loc_date.astimezone(central) print(target_date)

正确答案:A
试题代码地址 https://codechina.csdn.net/LOVEmy134611/python_problem

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