如何处理此代码输出中的空格？

Question

首先，这是代码：

    alphabet = input("Please input the scrambled alphabet in order: ")
    message = input("Now input the scrambled message: ")
    secret_map = {}
    for index, letter in enumerate(alphabet):
        secret_map[letter] = chr(65 + index)
    new_str = ("".join([secret_map[char] for char in message]))
    print(new_str, end="")

OUTPUT
Please input the scambled alphabet in order = DRLOWNUKSBZQJHCTXMIFYGPAEV
Now input the scrambled message = LOWNUK
CDEFGH

但是

Please input the scambled alphabet in order = DRLOWNUKSBZQJHCTXMIFYGPAEV
Now input the scrambled message = LOWNUK LOWNUK
OUTPUT = 

    Traceback (most recent call last):
      File "/Users/sanjith/Documents/assign8t.py", line 6, in <module>
        new_str = ("".join([secret_map[char] for char in message]))
      File "/Users/sanjith/Documents/assign8t.py", line 6, in <listcomp>
        new_str = ("".join([secret_map[char] for char in message]))
    KeyError: ' '

我无法获得空间。我知道这与ascii number 32（之前的127改为）有关。

Answer 1

使用dict.get()。

secret_map.get(char, char)