Python中的石头、布和剪刀

Question

（我是python新手，现在请不要判断代码的质量。）

所以，我正在制作一个程序，让你们用代码玩石头、布和剪刀。这是我的代码：

import random

name = str(input("Enter your name:\n"))

choices = ["rock", "papers", "scissors"]

print(f"Hi {name}, choose between rock, papers and scissors")

while True:
    user_choice = str(input('> '))
    user_choice.lower()

    if user_choice not in choices:
        print("ERROR")

    computer_choice = random.choice(choices)
    print(f"Computer chooses: {computer_choice}")

    if user_choice == "rock":
        if computer_choice == "papers":
            print("Computer wins!")
        elif computer_choice == "scissors":
            print(f"{name} wins!")

    if user_choice == "papers":
        if computer_choice == "scissors":
            print("Computer wins!")
        if computer_choice == "rock":
            print(f"{name} wins!")

    if user_choice == "scissors":
        if computer_choice == "rock":
            print("Computer wins!")
        elif computer_choice == "papers":
            print(f"{name} wins!")

    if user_choice == computer_choice:
        print("Tie!")

但是，就像我运行代码时一样，它运行得非常好。然而，问题是如果用户没有输入正确的拼写，输出看起来真的很混乱。像这样：

Enter your name:
_____
Hi _____, choose between rock, papers and scissors
> asdf
ERROR
Computer chooses: rock

我不想要最后一行，上面写着“电脑选择：摇滚”。请有人建议我该怎么做

提前谢谢🙏

（编辑：另外，如果你能建议我如何在这篇文章中加入一个积分系统，它可以计算出电脑赢了多少次，用户赢了多少次，以及比赛平局了多少次，那么我将非常感谢你的努力。）

Answer 1

只需使用continue强制用户输入有效选项：

while True:
    user_choice = str(input('> '))
    user_choice = user_choice.lower()

    if user_choice not in choices:
        print(f"You chose {user_choice}, please choose rock, paper, or scissors")
        continue

    [...]

Answer 2

看起来您的错误问题已经解决：） 但对于平局和记分柜台，我准备了以下代码-

import random

name = str(input("Enter your name:\n"))

choices = ["rock", "papers", "scissors"]

print(f"Hi {name}, choose between rock, papers and scissors")

Cwin = 0

Userwin = 0

Tie = 0

while True:
    user_choice = str(input('> '))
    user_choice.lower()

    if user_choice not in choices:
        print("ERROR")

    computer_choice = random.choice(choices)
    print(f"Computer chooses: {computer_choice}")

    if user_choice == "rock":
        if computer_choice == "papers":
            print("Computer wins!")
            Cwin = Cwin + 1
            print(int(Cwin) , "Computer victories so far")
        elif computer_choice == "scissors":
            print(f"{name} wins!")
            Userwin = Userwin + 1
            print(int(Userwin) , "User victories so far")

    if user_choice == "papers":
        if computer_choice == "scissors":
            print("Computer wins!")
            Cwin = Cwin + 1
            print(int(Cwin) , "Computer victories so far")
        elif computer_choice == "rock":
            print(f"{name} wins!")
            Userwin = Userwin + 1
            print(int(Userwin) , "User victories so far")

    if user_choice == "scissors":
        if computer_choice == "rock":
            print("Computer wins!")
            Cwin = Cwin + 1
            print(int(Cwin) , "Computer victories so far")
        elif computer_choice == "papers":
            print(f"{name} wins!")
            Userwin = Userwin + 1
            print(int(Userwin) , "User victories so far")

    if user_choice == computer_choice:
        print("Tie!")
        Tie = Tie + 1
        print(int(Tie) , "Ties so far")

看这里的屏幕截图，它工作正常-

Answer 3

只需添加计算机，然后在其他文件中选择：

import random

name = str(input("Enter your name:\n"))

choices = ["rock", "papers", "scissors"]

print(f"Hi {name}, choose between rock, papers and scissors")

while True:
    user_choice = str(input('> '))
    user_choice.lower()

    if user_choice not in choices:
        print("ERROR")
    else:
        computer_choice = random.choice(choices)
        print(f"Computer chooses: {computer_choice}")

    if user_choice == "rock":
        if computer_choice == "papers":
            print("Computer wins!")
        elif computer_choice == "scissors":
            print(f"{name} wins!")

    if user_choice == "papers":
        if computer_choice == "scissors":
            print("Computer wins!")
        if computer_choice == "rock":
            print(f"{name} wins!")

    if user_choice == "scissors":
        if computer_choice == "rock":
            print("Computer wins!")
        elif computer_choice == "papers":
            print(f"{name} wins!")

    if user_choice == computer_choice:
        print("Tie!")