执行del删除tuple，是不是为了回收内存？ 另，tuple的发音应该是“塌破”[tʌpl]吧？

1、增加元素 报错 tuple_demo = ('x', 'y', 'z') print(tuple_demo.append('a')) AttributeError: 'tuple' object has no attribute 'append' 2、删除元素 报错 tuple_demo = ('x', 'y', 'z') print(tuple_demo.remove('z')) AttributeError: 'tuple' object has no attribute 'remove' 3、元素索引操作 tuple_demo = ('x', 'y', 'z') print(tuple_demo.insert(3, 'a')) AttributeError: 'tuple' object has no attribute 'insert' 索引： tuple_demo = ('x', 'y', 'z') for i in range(len(tuple_demo) + 1): print(tuple_demo[i])

1. .insert()、.append() 方法均不存在：tuple本身不支持增加元素，报错信息为 AttributeError: 'tuple' object has no attribute 'remove' 2. .remove() 同理；del 删除元素 报不支持该命令：TypeError: 'tuple' object doesn't support item deletion 3. 不存在第四个元素，因此报索引错误：IndexError: tuple index out of range

tuple = ('x','y','z') tuple.append('w') print(tuple) AttributeError: 'tuple' object has no attribute 'append' ----------------------------------------------------------- print(tuple.remove('x')) AttributeError: 'tuple' object has no attribute 'remove' ----------------------------------------------------------- print(tuple[4]) IndexError: tuple index out of range

# 元祖属于不可变序列 # 元祖支持不可变序列的全部内置操作 # 注意区分元祖和列表，按需使用每种数据类型 meta_group = ('x', 'y', 'z') print(meta_group) meta_group.insert(1) # AttributeError: 'tuple' object has no attribute 'insert' meta_group.remove('x') # AttributeError: 'tuple' object has no attribute 'remove' meta_group[3] # IndexError: tuple index out of range

tuple_alpha = ('x', 'y', 'z') # 增加元素 tuple_alpha.append('a') # AttributeError: 'tuple' object has no attribute 'append' # 删除元素 tuple_alpha.remove() # AttributeError: 'tuple' object has no attribute 'remove' # 访问第四个元素索引 tuple_alpha[3] # IndexError: tuple index out of range 前两个操作，告诉我们 tuple上没有这两个方法（attribute 属性） 最后的操作，告诉我们 索引值超出了tuple的范围

num = ('x','y','z') #num1 = [x for x in num] num1 = list(num) print(num) print(num1) num1.append('a') print(num1) num = tuple(num1) print(num) print(num[3])

1、#元组增加元素 tuple = ("x","y","z") tuple.append("c") 执行后提示：AttributeError: 'tuple' object has no attribute 'append' 2、#元组删除元素 tuple = ("x","y","z") #tuple.remove("x") 执行后提示：AttributeError: 'tuple' object has no attribute 'remove' 3、#在索引位置插入元素 tuple = ("x","y","z") tuple.insert(3,"c") 执行后提示：AttributeError: 'tuple' object has no attribute 'insert'

tuple_demo = tuple(list('xyz')) print(tuple_demo) list_convert = list(tuple_demo) print(list_convert) list_convert.append('a') print(list_convert) list_convert.pop(0) print(list_convert) tuple_demo = tuple(list_convert) print(tuple_demo) tuple_demo.append('a') --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) Cell In[25], line 1 ----> 1 tuple_demo.append('a') AttributeError: 'tuple' object has no attribute 'append' tuple_demo.remove('a') --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) Cell In[26], line 1 ----> 1 tuple_demo.remove('a') AttributeError: 'tuple' object has no attribute 'remove' tuple_demo.index('p') --------------------------------------------------------------------------- ValueError Traceback (most recent call last) Cell In[30], line 1 ----> 1 tuple_demo.index('p') ValueError: tuple.index(x): x not in tuple

list_demo = [1,2,3] tuple_demo = tuple(list_demo) print(list_demo) print(type(list_demo)) print(tuple_demo) print(type(tuple_demo))