Python剪刀石头布游戏计分异常：需修改代码何处？

核心问题 #

1. 类型不匹配导致胜负判断失效：computer_hand通过random.randint(0,2)生成的是整数，但判断胜负时直接和字符串（如"S"）比较，导致所有用户获胜的条件永远不成立，player1_score无法递增。
2. else分支逻辑错误：当前else分支会在用户没赢的所有情况（包括平局）都给电脑加分，导致即使平局，computer_score也会错误增长。

修改步骤 #

1. 修正电脑出拳的变量类型

将生成电脑出拳的代码从：

computer_hand = random.randint(0,2)

改为：

computer_hand = hand[random.randint(0,2)]

这样computer_hand直接存储对应的字符串（"R"/"P"/"S"），和用户输入的your_hand类型一致，胜负判断条件才能正常触发。

2. 补充平局判断，修正加分逻辑

在原有的三个用户获胜条件之后，增加平局的判断，只有当电脑明确获胜时才给computer_score加分：

elif your_hand == computer_hand:
    print("平局！")
    print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))

修改后的完整代码 #

import random

hand = ["R","P","S"]


def game():
    
    player1_score = 0
    computer_score = 0

    i=0
    while (i<5):
        print("Enter R for ROCK \nEnter P for PAPER\nEnter S for SCISOR")
        your_hand = input(player1 + " picks: ").upper()
        if your_hand not in hand:
            continue
        computer_hand = hand[random.randint(0,2)]
        print("Computer picks: ", computer_hand)
        if your_hand == "R" and computer_hand == "S":
            player1_score += 1 
            print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))
        elif your_hand == "P" and computer_hand == "R":
            player1_score += 1
            print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))
        elif your_hand == "S" and computer_hand == "P":
            player1_score += 1
            print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))
        elif your_hand == computer_hand:
            print("平局！")
            print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))
        else:
            computer_score += 1
            print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))
        i += 1
    print("Your score: ",str(player1_score) + "\n My score: ", str(computer_score))   


print("\t\t\tWELCOME TO ROCK PAPER SCISORS!")

print("\t\t\tRemember this: \n\t\t\t\t SCISORS KILLS PAPER \n\t\t\t\t PAPER KILLS STONE \n\t\t\t\t STONE KILLS SCISORS")
player1 = input("Player 1 Enter your name: ")
print("Player 2: Hello! " + player1 +". I am your COMPUTER!")

print("SO SHALL WE : \n\t1. PLAY \n\t2. EXIT")
start = int(input("Enter the choice: "))
if start == 1:
   game()
else:
    exit()

内容的提问来源于stack exchange，提问作者Sinjini