Python 3 - 从摩尔斯电码翻译时如何将每个句子的第一个字母大写 [英] Python 3 - How to capitalize first letter of every sentence when translating from morse code

问题描述

我正在尝试将莫尔斯电码翻译成单词和句子，一切正常……除了一件事.我的整个输出都是小写的，我希望能够将每个句子的第一个字母大写.

I am trying to translate morse code into words and sentences and it all works fine... except for one thing. My entire output is lowercased and I want to be able to capitalize every first letter of every sentence.

这是我当前的代码:

 text = input()
        if is_morse(text):
            lst = text.split(" ")
            text = ""
            for e in lst:
                text += TO_TEXT[e].lower()
            print(text)

拆分列表中的每个元素都等于一个字符(但在莫尔斯语中)而不是单词.'TO_TEXT' 是一本字典.有没有人有一个简单的解决方案?顺便说一句，我是编程和 Python 的初学者，所以我可能不明白一些解决方案......

Each element in the split list is equal to a character (but in morse) NOT a WORD. 'TO_TEXT' is a dictionary. Does anyone have a easy solution to this? I am a beginner in programming and Python btw, so I might not understand some solutions...

推荐答案

维护一个标志，告诉您这是否是新句子的第一个字母.用它来决定字母是否应该大写.

Maintain a flag telling you whether or not this is the first letter of a new sentence. Use that to decide whether the letter should be upper-case.

text = input()
if is_morse(text):
    lst = text.split(" ")
    text = ""
    first_letter = True
    for e in lst:
        if first_letter:
            this_letter = TO_TEXT[e].upper()
        else:
            this_letter = TO_TEXT[e].lower()

        # Period heralds a new sentence. 
        first_letter = this_letter == "."  

        text += this_letter
    print(text)

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