Python中“返回函数外”语法错误的原因？

Question

这段代码有问题；

'return' outside function (<module1>, line 4)   <module1>   4

本书中的这段代码叫做Learn the python hard way； “练习 25：更多练习”

def break_words(stuff):
    """This function will break up words for us."""
words = stuff.split(' ')
return words


def sort_words(words):
    """Sorts the words."""
    return storred(words)

def print_first_word(words):
    """Prints the first word after popping it off."""
    word = words.php(0)
    print word

def sort_last_word(words):
    """prints the last word after popping it off."""
    word = words.pop(-1)
    print word

def sort_sentence(sentence):
    """Takes in a full sentence and returns the sorted words."""
    words = break_words(sentence)
    return sort_words(words)

def print_first_and_last(sentence):
    """Prints the first and last words of the sentence. """
    Words = break_words(sentence)
    print_first_word(words)
    print_last_word(words)

def print_first_and_last_sorted(sentence):
    """Sorts the words then prinits the first and last one."""
    words = sort_sentence(sentence)
    print_first_word(words)
    print_last_word(words)

有什么解决办法吗？

Answer 1

在此函数中，return 没有正确缩进。

def break_words(stuff):
    """This function will break up words for us."""
    words = stuff.split(' ')
    return words

Answer 2

你的缩进关闭了，试试这个：

def break_words(stuff):
    """This function will break up words for us."""
    words = stuff.split(' ')
    return words

缩进是 Python 的关键组成部分，与其他一些语言不同，因此确保代码格式正确非常重要。

Answer 3

缩进在 python 中很重要。从您粘贴的最后两行来看，这里不在 break_words 的范围内。

def break_words(stuff):
    """This function will break up words for us."""
words = stuff.split(' ')
return words