按字母顺序对多个字符串进行排序

Question

我尝试编写的代码必须包含来自用户的提示和三个单独的字符串。当我要求用户在同一个提示中输入 3 个单词时，我能够使排序功能起作用，但是当我将输入分开时，排序功能不起作用。我对编码很陌生（第一周），所以如果不清楚，我深表歉意。

我应该编写一系列 Python 语句来提示用户输入三个字符串。然后，使用 'if' 语句，按字母顺序打印它们。

这是我目前的代码：可能有人有什么建议吗？

谢谢！

word1 = input(str("Please enter a word of your choice:"))
word2 = input(str("please enter another word, but make sure the word does not start with the same letter:"))
word3 = input(str("Awesome! Ok, finally, enter one last word, again making sure not to use the same letter:"))
    
if (word1 == word2):
    print("The words are the same")
else:
    print("Nicely done, you read directions well!")
       
print("The words in alphabetical order are..")

接下来是什么？我在任何地方都找不到此信息。

Answer 1

您需要比较字符串并根据比较结果执行操作。使用来自 this resource to compare strings and the algorithm from this post 的字符串比较，您可以对三个字符串进行排序。

word1 = input(str("Please enter a word of your choice:"))
word2 = input(str("please enter another word, but make sure the word does not start with the same letter:"))
word3 = input(str("Awesome! Ok, finally, enter one last word, again making sure not to use the same letter:"))

if (word1 == word2):
    print("The words are the same")
else:
    print("Nicely done, you read directions well!")

print("The words in alphabetical order are..")

if(word1>word3):
  tmp = word1
  word1 = word3
  word3 = tmp

if(word1>word2):
  tmp = word1
  word1 = word2
  word2 = tmp

if(word2>word3):
  tmp = word2
  word2 = word3
  word3 = tmp

print(word1)
print(word2)
print(word3)

Answer 2

如其他回复中所述，使用“if”语句肯定可以解决此问题。但是，如果您不局限于“if”语句，并且为了了解更多关于 Python 的信息，使用列表将以简洁明了的方式解决您的问题。请看下面的代码：

word1 = input(str("Please enter a word of your choice:"))
word2 = input(str("please enter another word, but make sure the word does not start with the same letter:"))
word3 = input(str("Awesome! Ok, finally, enter one last word, again making sure not to use the same letter:"))
    
if (word1 == word2 or word1 == word3 or word2 == word3):
    print("The words are the same")
else:
    print("Nicely done, you read directions well!")
       
word_list = [word1, word2, word3]
word_list.sort()

print("The words in alphabetical order are..")
for word in word_list:
    print(word)

按字母顺序对多个字符串进行排序

alphabetically sorting multiple strings

string

if-statement

input

alphabetical

python-3.x