> content = "static data type"
> content[0]=S
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
NameError: name 'S' is not defined
> numbers = (1,2,3,4,5)
> numbers[0] = 6
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
TypeError: 'tuple' object does not support item assignment

> numbers = [1,2,3,4,5]
> id(numbers)
2749153235976
> numbers[0]=6
> numbers
[6, 2, 3, 4, 5]
> id(numbers)
2749153235976

# __desc__ = 通过Python代码模拟购物清单的添加和删除
 
# 定义shopping_list，表示购物清单
shopping_list = ["消毒液", "口罩", "白酒"]
 
# 口罩已经断货，从购物车中移除
shopping_list.remove("口罩")
# shopping_list的输出为["消毒液", "白酒"]
 
# 从购物车中添加葵花口服液
shopping_list.append("葵花口服液")
# shopping_list的输出为["消毒液", "白酒", "葵花口服液"]

# __desc__ = 通过元组来表示一周
 
# 定义变量week，表示一周
week = ("周一", "周二", "周三","周四", "周五", "周六","周日")
 
我们同样可以通过列表来表示一周：
# __desc__ = 通过列表来表示一周
 
# 定义变量week，表示一周
week = ["周一", "周二", "周三","周四", "周五", "周六","周日"]

# __desc__ = 粗心的程序员添加了个周八
# 定义变量week，表示一周
week = ["周一", "周二", "周三","周四", "周五", "周六","周日"]
week.append("周八")
# week的输出为["周一", "周二", "周三","周四", "周五", "周六","周日"，"周八"]

# __desc__ = 通过元组的解包来优雅地赋值
 
# 定义returned_values表示函数的返回值
returned_values = (True, 1314)
state, result = retured_values
 
# state的值为True, result的值为1314