Python:将一个元组从return语句转换为字符串

Question

我一直在研究HTTLCS,并且在完成问题时遇到了一些困难.

解决问题不是问题,但我将结果作为字符串而不是元组数据类型返回.

这是我的代码:

def wordCount(paragraph):
    splited = paragraph.split()
    wordnum = len(splited)
    eWord = []
    for aWord in splited:
        if "e" in aWord:
            eWord.append(aWord)
    eWordnum = len(eWord)
    percent = round(eWordnum / wordnum * 100,2)
    return "Your text contains", wordnum, "words, of which" , eWordnum , "(" , percent , "%)" , "contains an 'e'." 



print(wordCount(p))

Python输出('Your text contains', 108, 'words, of which', 50, '(', 46.3, '%)', "contains an 'e'.")是一个元组,而不是字符串.

我知道我可以在函数的末尾放置print并在没有print()语句的情况下调用函数,但是如何使用return语句解决这个问题呢？

Answer 1

这是因为你在return语句中使用逗号,Python将其解释为元组.请尝试使用format():

def wordCount(paragraph):
    splited = paragraph.split()
    wordnum = len(splited)
    eWord = []
    for aWord in splited:
        if "e" in aWord:
            eWord.append(aWord)
    eWordnum = len(eWord)
    percent = round(eWordnum / wordnum * 100,2)
    return "Your text contains {0} words, of which {1} ({2}%) contains an 'e'".format(wordnum, eWordnum, percent)

>>> wordCount("doodle bugs")

"Your text contains 2 words, of which 1 (0.0%) contains an 'e'"