如何用随机字母添加每隔一个字母？

Question

我正在尝试使用类和函数向字符串中每两个字母添加一个随机字母

class Encryption():

    def __init__(self,seed):

        # Set a random seed and a self.seed attribute

        self.seed = seed

        # Create an empty string attribute to hold the encrypted phrase

        self.encrypted_phrase = ''

        # Use the string and random libraries to create two attributes

        # One is the correct alphabet, another is a shuffled alphabet:

        self.correct_alphabet = list(string.ascii_lowercase)

        self.shuffeled_alphabet = random.sample(correct_alphabet, seed)

    def encryption(self,message):

        appended_message = list(message)       

        for let in list(range(0, len(message), 2)):

            if let in self.correct_alphabet:

                appended_message.append(self.shuffeled_alphabet)

        return appended_message

所以如果我这样做

e2 = Encryption(3)

e2.encryption(hello)

它失败并显示以下消息

NameError                                 Traceback (most recent call last)

<ipython-input-24-505d8a880fb2> in <module>

----> 1 e2.encryption(message=hello)

NameError: name 'hello' is not defined

我究竟做错了什么？

Answer 1

hello 需要是一个字符串，因为它不是一个变量。尝试e2.encryption("hello")或类似的东西。所以你的完整代码示例是：e2 = Encryption(3)e2.encryption("hello")