根据日、周和年查找月份Python

 def get_month_by_day(year, month, day):

     date_str = f"{year}-{month}-{day}"

     date_obj = datetime.strptime(date_str, "%Y-%m-%d")

     return date_obj.month

 # 示例用法

 year = 2022

 month = 1

 day = 15

 month_number = get_month_by_day(year, month, day)

 print(f"The month number for {year}-{month}-{day} is {month_number}.")

 ```

 def get_month_by_week(year, week):

     start_date = datetime.strptime(f"{year}-W{week-1}-1", "%Y-W%W-%w")

     end_date = start_date + timedelta(days=6)

     return start_date.month, end_date.month

 # 示例用法

 year = 2022

 week = 3

 start_month, end_month = get_month_by_week(year, week)

 print(f"The month range for week {week} in {year} is {start_month}-{end_month}.")

 ```

 def get_all_months(year):

     months = []

     for month in range(1, 13):

         date_str = f"{year}-{month}-1"

         date_obj = datetime.strptime(date_str, "%Y-%m-%d")

         months.append(date_obj.strftime("%B"))

     return months

 # 示例用法

 year = 2022

 all_months = get_all_months(year)

 print(f"The months in {year} are: {', '.join(all_months)}.")

 ```