python - Python 3.6-如何用单词翻译电话号码

尝试使该程序将字母转换为数字，以便可以输入带单词的电话号码并输出数字版本。 （1800GOTJUNK = 18004685865）不知道Im哪里出错了，但是每个输出都给出最后一个字母，然后对所有数字重复其数字（1800adgjmptw = 18009999999）。任何帮助将不胜感激，谢谢。

def transNum(string):
    number = 1
    for ch in string:
        if ch.lower() in "abc":
            number = 2
        elif ch.lower() in "def":
            number = 3
        elif ch.lower() in "ghi":
            number = 4
        elif ch.lower() in "jkl":
            number = 5
        elif ch.lower() in "mno":
            number = 6
        elif ch.lower() in "pqrs":
            number = 7
        elif ch.lower() in "tuv":
            number = 8
        elif ch.lower() in "wxyz":
            number = 9
    return number


def translate(phone):
    newNum = ""
    for ch in phone:
        if ch 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"]:
            newNum = newNum + str(transNum(phone))
        else:
            newNum = newNum + ch
    return newNum

def main():
    phone = input("enter a phone number")
    noLetters = translate(phone)
    print("The number you entered: ", phone)
    print("Translates to: ", noLetters)

main()

最佳答案

str(transNum(phone))应该是str(transNum(ch))
并且transNum不需要遍历其输入，因为它只会保留最后一个数字（它被设计为以单个字母作为输入）。