Python DateTime weekday() 方法与示例

在本文中，我们将讨论 DateTime 模块中的 weekday()函数。 weekday()函数用于根据给定的 DateTime 获取周数。它将返回 0-6 范围内的数字

Representation	Meaning
0	Monday
1	Tuesday
2	Wednesday
3	Thursday
4	Friday
5	Saturday
6	Sunday

它将以“(YYYY, MM, DD, HH, MM, SS)”的格式将输入作为DateTime，其中，

• YYYY 代表年份
• MM 代表月
• DD 代表日期
• HH 代表小时
• MM代表分钟
• SS 代表秒

我们首先需要导入 DateTime 模块并创建一个 DateTime，现在使用 weekday()函数我们将获得特定 DateTime 的工作日。

句法：

datetime(YYYY,MM,DD, HH,MM,SS).weekday()

我们还可以使用以下语法从 DateTime 中提取日期：

句法：

datetime(YYYY,MM,DD, HH,MM,SS).date()

示例：创建日期时间并显示日期时间和日期的Python程序

Python3

# importing datetime class
from datetime import datetime
  
# create datetime
x = datetime(2021, 8, 8, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the date
print("Date is :", x.date())

输出：

Datetime is : 2021-08-08 12:05:06

Date is : 2021-08-08

示例：获取给定日期时间的工作日的Python程序

蟒蛇3

# importing datetime class
from datetime import datetime
  
# create datetime
x = datetime(2021, 8, 8, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the weekday
print("weekday is :", x.weekday())
  
  
# create datetime
x = datetime(2021, 9, 10, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the weekday
print("weekday is :", x.weekday())
  
# create datetime
x = datetime(2020, 1, 8, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the weekday
print("weekday is :", x.weekday())

输出：

Datetime is : 2021-08-08 12:05:06

weekday is : 6

Datetime is : 2021-09-10 12:05:06

weekday is : 4

Datetime is : 2020-01-08 12:05:06

weekday is : 2

示例3：获取工作日名称的Python程序

蟒蛇3

# create a list of weekdays
from datetime import datetime
  
days = ["Monday", "Tuesday", "Wednesday",
        "Thursday", "Friday", "Saturday", "Sunday"]
  
# importing datetime class
  
# create datetime
x = datetime(2021, 8, 8, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the weekday name using index
print("weekday is :", days[x.weekday()])
  
  
# create datetime
x = datetime(2021, 9, 10, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the weekday name  using index
print("weekday is :", days[x.weekday()])
  
# create datetime using index
x = datetime(2020, 1, 8, 12, 5, 6)
  
# display
print("Datetime is :", x)
  
  
# get the weekday name using index
print("weekday is :", days[x.weekday()])

输出：

Datetime is : 2021-08-08 12:05:06

weekday is : Sunday

Datetime is : 2021-09-10 12:05:06

weekday is : Friday

Datetime is : 2020-01-08 12:05:06

weekday is : Wednesday