Python入门：如何按字符串长度获取N个输入并存入数组

问题描述 #

我刚接触Python，正在开发Hangman（刽子手）项目，想根据随机选中单词的字母数量N，获取N次用户输入并将它们存入数组（列表）中。目前的代码只能单次获取输入，无法保存所有输入内容：

import random

words = ["banana", "orange", "cherry", "apple", "peach", "watermelon", "blueberry"]
word = random.choice(words)
for count in range(len(word)):
    guess = input("Enter your guess: ")

解决方案 #

只需初始化一个空列表，每次获取输入后将其添加到列表中即可：

import random

words = ["banana", "orange", "cherry", "apple", "peach", "watermelon", "blueberry"]
word = random.choice(words)
# 创建空列表用于存储所有猜测
guesses = []

for _ in range(len(word)):
    guess = input("Enter your guess: ")
    # 将当前猜测添加到列表末尾
    guesses.append(guess)

# 后续可直接使用guesses列表，比如打印所有猜测
print("你所有的猜测：", guesses)

额外优化建议 #

如果需要提升输入的有效性，可以添加简单的校验：

• 确保输入是单个字母：

  for _ in range(len(word)):
      while True:
          guess = input("Enter your guess (single letter): ")
          if len(guess) == 1 and guess.isalpha():
              break
          print("请输入单个字母！")
      guesses.append(guess.lower())  # 统一转为小写，避免大小写差异
  

• 避免重复猜测：

  for _ in range(len(word)):
      while True:
          guess = input("Enter your guess: ").lower()
          if len(guess) == 1 and guess.isalpha() and guess not in guesses:
              break
          print("请输入未猜过的单个字母！")
      guesses.append(guess)
  

内容的提问来源于stack exchange，提问作者Omar Mahmoud