在Python中将字母转换为电话号码的数字

Question

我正在尝试编写一个程序,提示用户输入一个字符串的电话号码.输入可以包含字母,程序将字母(无论是大写还是小写)转换为数字,并使所有其他字符保持不变.这是我到目前为止所拥有的:

def getNumber(uppercaseLetter):
    if uppercaseLetter == 'A':
        number = 2
    elif uppercaseLetter == 'B':
        number = 2
    elif uppercaseLetter == 'C':
        number = 2
    elif uppercaseLetter == 'D':
        number = 3
    elif uppercaseLetter == 'E':
        number = 3
    elif uppercaseLetter == 'F':
        number = 3
    elif uppercaseLetter == 'G':
        number = 4
    elif uppercaseLetter == 'H':
        number = 4
    elif uppercaseLetter == 'I':
        number = 4
    elif uppercaseLetter == 'J':
        number = 5
    elif uppercaseLetter == 'K':
        number = 5
    elif uppercaseLetter == 'L':
        number = 5
    elif uppercaseLetter == 'M':
        number = 6
    elif uppercaseLetter == 'N':
        number = 6
    elif uppercaseLetter == 'O':
        number = 6
    elif uppercaseLetter == 'P':
        number = 7
    elif uppercaseLetter == 'Q':
        number = 7
    elif uppercaseLetter == 'R':
        number = 7
    elif uppercaseLetter == 'S':
        number = 7
    elif uppercaseLetter == 'T':
        number = 8
    elif uppercaseLetter == 'U':
        number = 8
    elif uppercaseLetter == 'V':
        number = 8
    elif uppercaseLetter == 'W':
        number = 9
    elif uppercaseLetter == 'X':
        number = 9
    elif uppercaseLetter == 'Y':
        number = 9
    elif uppercaseLetter == 'Z':
        number = 9
    return number

def translateNumber():
    phoneNumber = str(input("Enter a string: "))
    for char in phoneNumber:
        if char in    ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']:
        getNumber(char)
        return char
        else:
            return char
        print(phoneNumber)

由于某种原因,我无法让它工作,我不确定问题是什么.有人可以帮我解决这个问题吗？谢谢!

Answer 1

没有解释你的代码(已由Chrisitan完成).这只是一种方式:

>>> char_numbers = [('abc',2), ('def',3), ('ghi',4), ('jkl',5), ('mno',6), ('pqrs',7), ('tuv',8), ('wxyz',9)]
>>> char_num_map = {c:v for k,v in char_numbers for c in k}
>>> phone = "JUST 1 NUMBER"
>>> result = "".join(str(char_num_map.get(v,v)) for v in phone.lower())
>>> result
'5878 1 686237'