如何在python中重復while循環語句？

Question

我正在學習 python 並且我正在制作一個 2 人擲骰子游戲，但我似乎無法讓玩家擲骰子或再玩一輪。 這是我寫的代碼。 如果有人可以幫助我更正代碼，我將不勝感激。 謝謝！

import random
import time

player_a = input("Player1, please type your name:")
time.sleep(1)
player_b = input("Player2, please type your name:")
time.sleep(1)
print("Welcome to Dice Roller", player_a, "and", player_b)

score_a = 0
score_b = 0
roll_a = False
roll_b = False

while not (roll_a and roll_b):
    ans_a = input("Type roll to roll the dice:")
    if ans_a == "roll":
        roll_a = (random.randint(1, 6))
        time.sleep(1)
        print(player_a, "has rolled", roll_a)
    else:
        print("Please check you spelling")
        time.sleep(2)
    ans_b = input("Your turn to roll, type roll to roll the dice:")
    if ans_b == "roll":
       roll_b = (random.randint(1, 6))
        time.sleep(1)
        print(player_b, "has rolled", roll_b)
    if roll_a == roll_b:
        time.sleep(2)
        print("Tie")
    break 
    roll_a = False
    roll_b = False
    if roll_a > roll_b:
        score_a = roll_a - roll_b
        print(player_a, "has scored", score_a, "points")
    break 
    roll_a = False
    roll_b = False
    if roll_b > roll_a:
        score_b = roll_b - roll_a
        print(player_b, "has scored", score_b, "points")
    break 
    roll_a = False
    roll_b = False






    

Answer 1

您可能希望將您的游戲重構為一個函數，該函數請求用戶輸入“roll”並返回 roll 結果，如下所示。

主while True循環永遠不會結束（盡管您可以將其設置for round in range(5):播放 5 輪），並且request_roll()循環將隨着return中斷。

import random
import time


def request_roll(name):
    while True:
        ans = input(f"{name}, type roll to roll the dice:").lower()
        if ans == "roll":
            roll = random.randint(1, 6)
            time.sleep(1)
            print(name, "has rolled", roll)
            return roll
        print("Please check your spelling")
        time.sleep(2)


player_a = input("Player1, please type your name:")
player_b = input("Player2, please type your name:")
print("Welcome to Dice Roller", player_a, "and", player_b)

while True:
    roll_a = request_roll(player_a)
    roll_b = request_roll(player_b)
    if roll_a > roll_b:
        score_a = roll_a - roll_b
        print(player_a, "has scored", score_a, "points")
    elif roll_b > roll_a:
        score_b = roll_b - roll_a
        print(player_b, "has scored", score_b, "points")
    else:
        print("It's a draw")

Answer 2

break語句立即退出 while 循環，因此第一個break之后的代碼永遠不會運行。 有關更多信息，請參閱此處的文檔： https : //www.tutorialspoint.com/python/python_break_statement.htm

您的代碼還有其他幾個尚未顯示的問題（因為該部分代碼永遠不會運行）：

在下一節中， roll_a和roll_b被False覆蓋。 這意味着 if 語句中的比較將不起作用。 您還覆蓋了score_a ，我假設您想在其中添加（使用+=運算符而不是= ）。

    roll_a = False
    roll_b = False
    if roll_a > roll_b:
        score_a = roll_a - roll_b
        print(player_a, "has scored", score_a, "points")

我會建議如下（注意我沒有測試過！）：

play_another_round = True
while play_another_round:
    ans_a = input("Type roll to roll the dice:")
    if ans_a == "roll":
        roll_a = (random.randint(1, 6))
        time.sleep(1)
        print(player_a, "has rolled", roll_a)
    else:
        print("Please check you spelling")
        time.sleep(2)
    ans_b = input("Your turn to roll, type roll to roll the dice:")
    if ans_b == "roll":
       roll_b = (random.randint(1, 6))
        time.sleep(1)
        print(player_b, "has rolled", roll_b)

    if roll_a == roll_b:
        print("Tie") 
    elif roll_a > roll_b:
        score_a += roll_a - roll_b
        print(player_a, "has scored", score_a, "points")
    elif roll_b > roll_a:
        score_b += roll_b - roll_a
        print(player_b, "has scored", score_b, "points")

    continue_game_check = input("Do you want to play another round (Yes/No)?")
    play_another_round = continue_game_check == "Yes"

print("The game has ended")
print(player_a, "has scored", score_a, "points")
print(player_b, "has scored", score_b, "points")