我想要做的只是從日期值在特定月份內(nèi)的列表中提取字典。from datetime import date, datetimelistexample = []def examplefunc(): listexample.append( {'example_record':len(examplelist)+1, 'date':datetime.strptime(input('Date (yyyy/mm/dd): ' ), '%Y/%m/%d'), })examplefunc()for i in listexample: print(listexample)如果我將月份標(biāo)準(zhǔn)指定為“3”，則只有日期中的月份等于“3”的字典才會(huì)產(chǎn)生/打印。如果我在請(qǐng)求輸入時(shí)輸入“2020/02/01”，輸出解析為：[{'example_record': 4, 'date': datetime.datetime(2020, 2, 1, 0, 0)}]月份在字典條目中（如上例中的“2”），但我只想提取那些“日期”為==特定月份（或當(dāng)前月份）的字典條目。我已經(jīng)嘗試遍歷字典中指定鍵值的列表，但這似乎也不起作用。這是我一直在嘗試的示例：def show_all_in_current_month():while True: (examplelist[0]['date']).month == '{:%m}'.format(date.today()) for i in range(len(examplelist)): print(examplelist) break任何幫助將不勝感激。謝謝！編輯：這個(gè)（難以忍受的簡(jiǎn)單）解決方案適用于我的問(wèn)題。謝謝大家的貢獻(xiàn)。for d in examplelist: if str(d['date'].month) == '2': print(d)
1 回答
白衣染霜花
TA貢獻(xiàn)1796條經(jīng)驗(yàn) 獲得超10個(gè)贊
你可以嘗試這樣的事情：
from datetime import datetime
listexample=[]
def examplefunc():
listexample.append(
{'example_record':len(listexample)+1,
'date':datetime.strptime(input('Date (yyyy/mm/dd): ' ), '%Y/%m/%d'),
})
#Define how many dates are you going to add
for i in range(int(input("How many dates are you going to add?\n:"))):
examplefunc()
def show_all_in_current_month(currentmonth): #receives the a month and filter the dicts that are in that month
print([dict for dict in listexample if dict['date'].month==currentmonth])
show_all_in_current_month(int(input("Which month do you want to filter the list with?\n:")))
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