输出中没有

Question

抱歉，我希望用户输入一封信，但我不明白为什么显示屏会显示无。

import random
hangmanList = {"fruit":["apple","banana","orange"]}
topicList = ["fruit"]
randomTopic = random.choice(topicList)
wordList = hangmanList[randomTopic]
questionList = random.choice(wordList)

def main():
    print("Welcome to the Hangman Game")
    print("---------------------------")
    print("Please choose 1 letter at a time")
    print("Topic is: ",randomTopic)
    guesses = input(print("Guesses: "))

main()

输出显示：

欢迎来到Hangman游戏

---

请一次选择1个字母

主题是：水果

猜测： 无

Answer 1

只需使用：

guesses = input("Guesses: ")

print返回None。 input将其参数打印为提示符。

Answer 2

应该是

guesses = input('Guesses: ')

目前它是None，因为print()函数没有返回值，因此它的结果是None。所以

guesses = input(print('Guesses: ')) 
# is
guesses = input(None)