python(5).zip

def build_cipher_map(key): """构建加密字母映射表""" alphabet = 'abcdefghijklmnopqrstuvwxyz' unique_key = "" for char in key: if char not in unique_key: unique_key += char reverse_alphabet = ''.join([char for char in alphabet[::-1] if char not in unique_key]) cipher = unique_key + reverse_alphabet cipher_map = {} for i in range(len(alphabet)): cipher_map[alphabet[i]] = cipher[i] return cipher_map def encrypt_file(input_filename, output_filename, cipher_map): """加密文件内容并写入新文件""" with open(input_filename, 'r', encoding='utf-8') as infile: content = infile.read() encrypted_content = "" for char in content: if char in cipher_map: encrypted_content += cipher_map[char] else: encrypted_content += char with open(output_filename, 'w', encoding='utf-8') as outfile: outfile.write(encrypted_content) def main(): key = input(" ") cipher_map = build_cipher_map(key) encrypt_file('encrypt.txt', 'output.txt', cipher_map) print("") if __name__ == "__main__": main()