為什么while循環會創建無限循環？ 猜測1和100

Question

我創建了一個while循環，因此我將繼續詢問用戶問題，直到他們知道正確的數字為止。 但是，例如，當a做一個隨機數時，它要么無限地打印“選擇一個較高的數字”，要么“打印一個較低的數字”。 有人可以在這里幫我嗎。

from random import randint

answer = randint(1, 100)

print("Guess a number between 1 and 3.")
guess = int(input())

count = 0

while guess != answer:
    if guess < answer:
        print("Pick a higher number.")
        count += 1
    elif guess > answer:
        print("Pick a lower number.")
        count += 1
    elif guess == answer:
        print("You got it!")
print("It took you " + str(count) + " tries.")

Answer 1

嘗試這個。

while True:
    guess = int(input("Guess a number between 1 and 3."))
    if guess < answer:
        print("Pick a higher number.")
        count += 1
    elif guess > answer:
        print("Pick a lower number.")
        count += 1
    elif guess == answer:
        print("You got it!")
        break

Answer 2

讓我這樣說：您何時從用戶那里獲得輸入？ 第二次循環運行會怎樣？ guess隨時更新嗎？

這些（建議性）問題的答案將帶您走正確的道路：

您必須在每次循環運行中向用戶請求輸入。

這將帶您了解如何開始循環。

from random import randint

answer = randint(1, 100)

count = 0
keep_loop = True

prompt = "Guess a number between 1 and 3."
while keep_loop:
    print(prompt)
    guess = int(input())
    if guess < answer:
        prompt = "Pick a higher number."
        count += 1
    elif guess > answer:
        prompt = "Pick a lower number."
        count += 1
    elif guess == answer:
        print("You got it!")
        keep_loop = False
print("It took you " + str(count) + " tries.")