如何以相同的句子顺序反转字符串中的每个单词？ [英] How do I reverse each word in a string, but in the same sentence order?

问题描述

我尝试这样做

while 1:
    line = input('Line: ')
    print(line[::-1])

，但所做的只是颠倒了整个句子，我想知道是否有人可以通过一个将 hello world转换为 olleh dlrow而不是 dlrow olleh的程序来帮助我，我如何制作一个循环，当输入什么都不是或者只是一个空格时就停止了？

but all that did was reverse the whole sentence, I was wondering if someone could help me with a program that converts 'hello world' to 'olleh dlrow' instead of 'dlrow olleh', and how do I make a loop that stops when the input is nothing, or just a space? Thank you in advanced!

推荐答案

您需要拆分句子，反转单词，然后重新组合。

You need to split the sentence, reverse the words, then reassemble.

最简单的拆分方法是在空白处使用 str.split（）进行拆分。那么，重组只是将反向单词重新加上空格的情况：

The simplest way to split is to do so on whitespace, with str.split(); reassembly is then just a case of re-joining the reversed words with a space:

' '.join([word[::-1] for word in line.split()])

Demo：

>>> line = 'hello world'
>>> ' '.join([word[::-1] for word in line.split()])
'olleh dlrow'

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