Python字符串操作-替换函数以创建Caesar密码

def create_caesar_cipher(message, offset):
    """
    创建Caesar密码
    :param message: 要加密的消息
    :param offset: 偏移量
    :return: 加密后的消息
    """
    encrypted_message = ""
    for char in message:
        if char.isalpha():  # 只加密字母字符
            if char.isupper():
                encrypted_message += chr((ord(char) - 65 + offset) % 26 + 65)  # 大写字母
            else:
                encrypted_message += chr((ord(char) - 97 + offset) % 26 + 97)  # 小写字母
        else:
            encrypted_message += char  # 非字母字符保持不变
    return encrypted_message

message = "Hello, World!"
offset = 3
encrypted_message = create_caesar_cipher(message, offset)
print(encrypted_message)

Khoor, Zruog!