脚本 returns 需要字符串，但在其后加上 '\n'

Question

我为脚本编写了这段代码，该脚本应检查单词是否包含所有元音字母（so、e、u、i、o、a），不区分大小写：

def words_all_vowels(filename):
    """Returns a list of all words that contain all vowels, as found in the file with the given name."""
    result = []
    
    e = False
    a = False
    i = False
    o = False
    u = False
    
    with open(filename, 'r') as f:
        for line in f:
            for r in range(len(line.lower())-1):
                if line.lower()[r:(r+1)] == "e":
                    e = True
                if line.lower()[r:(r+1)] == "a":
                    a = True
                if line.lower()[r:(r+1)] == "i":
                    i = True
                if line.lower()[r:(r+1)] == "o":
                    o = True
                if line.lower()[r:(r+1)] == "u":
                    u = True
            if e == True and a == True and i == True and o == True and u == True:
                print(line)
                result.append(line)
            
            #resetting for next word
            e == False
            a == False
            i == False
            o == False
            u == False
            
    return result
    
    pass  # TODO

奇怪的是，脚本 return 不仅包含在我的行变量中的字符串，而且后面还有 \n。这是包含所有元音的任意潜在单词列表的 return：

['Aboideaus\n',
 'seagull\n',
 'multidirectional\n',
 'lifeguard\n',
 'complaint\n',
 'overqualified\n']

这是不正确的，因为它还包含不包含所有元音的单词，但我稍后会解决这个问题。我只想知道这个 '\n' 是从哪里来的。它看起来像是一个以某种方式包含在字符串中的中断。包含这些词的原始文档中的词用行分隔，所以也许这就是它的来源。我在另一个脚本中也有这个，所以我阅读这些行的方式一定有问题。

Answer 1

使用 line.strip() 在追加结果时删除换行符。

def words_all_vowels(filename):
    """Returns a list of all words that contain all vowels, as found in the file with the given name."""
    result = []
    
    e = False
    a = False
    i = False
    o = False
    u = False
    
    with open(filename, 'r') as f:
        for line in f:
            for r in range(len(line.lower())-1):
                if line.lower()[r:(r+1)] == "e":
                    e = True
                if line.lower()[r:(r+1)] == "a":
                    a = True
                if line.lower()[r:(r+1)] == "i":
                    i = True
                if line.lower()[r:(r+1)] == "o":
                    o = True
                if line.lower()[r:(r+1)] == "u":
                    u = True
            if e == True and a == True and i == True and o == True and u == True:
                print(line)
                result.append(line.strip()) # add strip
            
            #resetting for next word
            e == False
            a == False
            i == False
            o == False
            u == False
            
    return result

Answer 2

问题是当你从文件中读取时，行最后有默认的 \n 去到新行你可以使用 line.strip() 或者你可以使用 line.replace('\n','')

脚本 returns 需要字符串，但在其后加上 '\n'

Script returns wanted strings, but with '\n' put after it

python

string

function

append

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