# ch8_9.py
keys = ['magic', 'xaab', 9099]      # 定義串列元素是字串與數字
tuple_keys = tuple(keys)            # 將串列改為元組
print("列印串列", keys)
print("列印元組", tuple_keys)
tuple_keys.append('secret')         # 增加元素 --- 錯誤錯誤


