Python列表與

Question

嗨開始我有字典

Player_list = [{'FirstName': 'Rad', 'AId': 178518, 'LastName': 'Nain'}, 
       {'FirstName': 'Lad', 'AId': 178519, 'LastName': 'Rain'}, 
       {'FirstName': 'Mad', 'AId': 178520, 'LastName': 'Tain'}] 

的名單，我想通過清萊

發現例如在關鍵「的lastName」 begining的列表中的位置感謝您的幫助

Answer 1

rais = [i for i,d in enumerate(Player_list) if d['LastName'].startswith("Rai")] 

輸出：

>>> Player_list = [{'FirstName': 'Rad', 'AId': 178518, 'LastName': 'Nain'}, 
...    {'FirstName': 'Lad', 'AId': 178519, 'LastName': 'Rain'}, 
...    {'FirstName': 'Mad', 'AId': 178520, 'LastName': 'Tain'}] 
>>> rais = [i for i,d in enumerate(Player_list) if d['LastName'].startswith("Rai")] 
>>> rais 
[1] 

Answer 2

或者：

[item["LastName"][:3] for item in player_list].index("Rai")