我有 2 個日期時間對象的“范圍”，由開始日期和停止日期定義。我想創建一個新的“范圍”（開始和停止日期）來匹配前兩個范圍中的日期。這是我嘗試過的，但我的列表有問題：它似乎沒有正確獲取最后一個元素？import datetime#First date range is next week from monday to sunday:next_week_day = datetime.datetime.now().date() + datetime.timedelta(days=7)monday = next_week_day - datetime.timedelta(days=next_week_day.weekday())sunday = monday + datetime.timedelta(days=7)daterange = [monday + datetime.timedelta(days=x) for x in range(0, (sunday-monday).days)] #Second daterange can be anything:start = datetime.date(2020, 8, 2)end = datetime.date(2020, 9, 25)daterange_2 = [start + datetime.timedelta(days=x) for x in range(0, (end-start).days)] #then I create a list to add matching days to create the new rangedate_list = []for date in daterange: for date_2 in daterange_2: if date_2 == date: date_list.append(date)#and retrieve first and last day in listfirst_date = date_list[0]second_date = date_list[-1]print(first_date, second_date)print(type(first_date), type(second_date))打印'2020, 9, 24'secondary_date 而不是'2020, 9, 25'. 我缺少什么？
1 回答
慕容3067478
TA貢獻1773條經驗 獲得超3個贊
您需要更新兩者的范圍daterange并daterange_2包含所有必要的日期：
import datetime
# First date range is next week from monday to sunday:
next_week_day = datetime.datetime.now().date() + datetime.timedelta(days=7)
monday = next_week_day - datetime.timedelta(days=next_week_day.weekday())
sunday = monday + datetime.timedelta(days=7)
daterange = [monday + datetime.timedelta(days=x) for x in range(0, (sunday - monday).days + 1)]
# Second daterange can be anything:
start = datetime.date(2020, 8, 2)
end = datetime.date(2020, 9, 25)
daterange_2 = [start + datetime.timedelta(days=x) for x in range(0, (end - start).days + 1)]
# then I create a list to add matching days to create the new range
date_list = []
for date in daterange:
for date_2 in daterange_2:
if date_2 == date:
date_list.append(date)
# and retrieve first and last day in list
first_date = date_list[0]
second_date = date_list[-1]
print(first_date, second_date)
print(type(first_date), type(second_date))
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