初学者需要在石头，布，剪刀游戏中使用函数的帮助

import random

def rock_paper_scissors(player_choice, computer_choice):
    if player_choice == computer_choice:
        return "It's a tie!"
    elif (player_choice == "rock" and computer_choice == "scissors") or \
         (player_choice == "paper" and computer_choice == "rock") or \
         (player_choice == "scissors" and computer_choice == "paper"):
        return "Player wins!"
    else:
        return "Computer wins!"

choices = ["rock", "paper", "scissors"]
player_choice = random.choice(choices)
computer_choice = random.choice(choices)

result = rock_paper_scissors(player_choice, computer_choice)
print(result)