Python 为什么符号没有按顺序添加

发布于04月17日

string_to_translate: dict ={
"a":"@",
"b":"6",
"c":"¢",
"d":"p",
"e":"€",
"f":"√",
}

while True:
    sentence_to_translate: str = str(input("Wpisz zdanie: "))
    sentence_after_formatting: list = [char for char in sentence_to_translate]
    translated_sentence: list = []
    for y in string_to_translate.keys():
        for x in sentence_after_formatting:
            if y == x:
                translated_sentence.append(translated_sentence[y])
            
    print(translated_sentence)
    break

例如，当我输入"fed"时，我得到的是['p', '€', '√']，而它应该是['√', '€', 'p'].

为什么会发生这种情况？谢谢你的帮助

推荐答案

主要问题是你首先判断dict's keys，如果你的关键词是句子，然后它就会添加到你的列表中.因此，基本上，您的代码正在逐个查找char list中的键. 为了解决这个问题，你的循环应该从你的char开始，然后判断它是否在dict中.

所以，你的代码应该是这样的:

string_to_translate: dict ={
"a":"@",
"b":"6",
"c":"¢",
"d":"p",
"e":"€",
"f":"√",
}

while True:
    sentence_to_translate: str = str(input("Wpisz zdanie: "))
    sentence_after_formatting: list = [char for char in sentence_to_translate]
    translated_sentence: list = []
    for char in sentence_after_formatting:
        if char in string_to_translate.keys():    
            translated_sentence.append(string_to_translate[char]) 
                 
    print(translated_sentence)
    break