我是一名学生开发人员，正在为即将到来的测试学习。我一直在做一个关于继承和多态性的练习题，并设法达到预期的结果，但我似乎不理解我自己的代码后，试图彻底分析它。我想创建一个超类'播放器'，并初始化超类中的对象，以创建篮球运动员并将他们组成一个团队，然后使用str显示团队成员。方法。下面是www.example.com的代码Player.py：

class Player:
    def __init__(self, player_name):
        self.player_name = player_name

    def get_player_name(self):
        return self.player_name

    def set_player_name(self, player_name):
        self.player_name = player_name

class BasketballPlayer(Player):

    positions = ['Guard', 'Forward', 'Center']

    def __init__(self, player_name):
        super().__init__(player_name)
        self.player_position = None

    def get_player_position(self):
        return self.player_position

    def set_player_position(self, player_position):
        self.player_position = player_position
        if self.player_position not in BasketballPlayer.positions:
            print("Invalid position for basketball player.")
            self.player_position = ""

    def __str__(self):
        return f"{self.get_player_name()} playing as a {self.player_position}"

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下面是我的测试程序的代码，我在其中执行我的函数：

from Player import *                                                                              
                                                                                                  
                                                                                                  
List_of_players = []                                                                              
team_name = str(input("Please enter the basketball team name: "))                                 
                                                                                                  
for i in range(5):                                                                                
    player_name = str(input("Please enter player name: "))                                        
    player_position = str(input("Please enter the basketball player's position: "))               
                                                                                                  
    BasketBallPlayer_obj = BasketballPlayer(player_name)                                          
                                                                                                  
    BasketBallPlayer_obj.set_player_position(player_position)                                     
    BasketBallPlayer_obj.set_player_name(player_name)                                             
                                                                                                  
    List_of_players.append(BasketBallPlayer_obj)                                                  
                                                                                                  
print(f"Team {team_name} consists of the following players: ")                                    
for i in range(len(List_of_players)):                                                             
    print(List_of_players[i])

型
我正在使用for循环为5个球员创建一个篮球运动员对象5次。有人能帮我解释一下为什么在BasketBallPlayer_obj = BasketballPlayer(player_name)中初始化BasketBallPlayer_obj时需要传入'player_name'参数吗？如果我删除参数传递，并且不知道为什么需要传入'player_name'参数，我会得到一个TypeError，谢谢你这么多提前回答这个问题！
我尝试在初始化对象时删除'player_name'参数，但它抛出了一个TypeError，说“Player.init（）missing 1 required positional argument：'player_name'”。