保持現有的大寫字母字符串

Question

我正在使用以下代碼將每個單詞的首字母更改為大寫字母，但一些瑣碎的字母（a，of等）除外

f = open('/Users/student/Desktop/Harry.txt').readlines()[2]
new_string = f.title()
print (new_string)

我還想做的是讓那些例外詞沒有如上所述那樣大寫，但是還要讓任何已經有大寫字母的單詞（例如CHINA，NSW）保留這些字母。

Answer 1

像這樣：

使用str.capitalize ：

為什么？

>>> "CAN'T".title()
"Can'T"

>>> "CAN'T".capitalize()
"Can't"

碼：

>>> strs = """What i would also like to do is have those exception words not capitalised as 
stated above but also have that any word that already has capitals letters
( For e.g. CHINA, NSW etc. ) that those letters will be retained."""
>>> words = {'a','of','etc.','e.g.'}  #set of words that shouldn't be changed
>>> lis = []
for word in strs.split():
    if word not in words and not word.isupper(): 
        lis.append(word.capitalize())
    else:    
        lis.append(word)
...         
>>> print " ".join(lis)
What I Would Also Like To Do Is Have Those Exception Words Not Capitalised As Stated Above But Also Have That Any Word That Already Has Capitals Letters ( For e.g. CHINA, NSW etc. ) That Those Letters Will Be Retained.

Answer 2

對於第一個要求，您可以創建一個包含異常詞的列表：

e_list = ['a', 'of', 'the'] # for example

然后，您可以運行以下內容，使用isupper()檢查字符串是否已經全部大寫：

new = lambda x: ' '.join([a.title() if (not a in e_list and not a.isupper()) else a for a in x.split()])

測試：

f = 'Testing if one of this will work EVERYWHERE, also in CHINA, in the run.'

print new(f)
#Testing If One of This Will Work EVERYWHERE, Also In CHINA, In the Run.