010-012列表：一个打了激素的数组

列表：字符串，数字，列表，元组，字典，对象

mix=[1,3.14,'小甲鱼',[7,8,9],[]]
>>> mix
[1, 3.14, '小甲鱼', [7, 8, 9], []]

增加列表元素：.append()、.extend()  和 .insert()

>>> mix.append['hello world']
Traceback (most recent call last):
  File "<pyshell#152>", line 1, in <module>
    mix.append['hello world']
TypeError: 'builtin_function_or_method' object is not subscriptable
>>> mix.append('hello world')
>>> mix
[1, 3.14, '小甲鱼', [7, 8, 9], [], 'hello world']
>>> mix.extend('岁寒四友','天空')
Traceback (most recent call last):
  File "<pyshell#155>", line 1, in <module>
    mix.extend('岁寒四友','天空')
TypeError: extend() takes exactly one argument (2 given)
>>> mix.extend(['岁寒四友','天空'])
>>> mix
[1, 3.14, '小甲鱼', [7, 8, 9], [], 'hello world', '岁寒四友', '天空']
>>> mix.insert(0,'北国风光')
>>> mix
['北国风光', 1, 3.14, '小甲鱼', [7, 8, 9], [], 'hello world', '岁寒四友', '天空']

列表：索引、分片（slice）、拷贝、步长

mix=['北国风光', 1, 3.14, '小甲鱼', [7, 8, 9], [], 'hello world', '岁寒四友', '天空']
>>> temp=mix[0]
>>> mix[0]=mix[3]
>>> mix
['小甲鱼', 1, 3.14, '小甲鱼', [7, 8, 9], [], 'hello world', '岁寒四友', '天空']
>>> mix[3]=temp
>>> mix
['小甲鱼', 1, 3.14, '北国风光', [7, 8, 9], [], 'hello world', '岁寒四友', '天空']

>>> mix.remove(1)
>>> mix
['小甲鱼', 3.14, '北国风光', [7, 8, 9], [], 'hello world', '岁寒四友', '天空']
>>> mix.remove([])
>>> mix
['小甲鱼', 3.14, '北国风光', [7, 8, 9], 'hello world', '岁寒四友', '天空']
>>> del mix[2]
>>> mix
['小甲鱼', 3.14, [7, 8, 9], 'hello world', '岁寒四友', '天空']
>>> mix.pop()
'天空'
>>> mix
['小甲鱼', 3.14, [7, 8, 9], 'hello world', '岁寒四友']

>>> mix[2:5]
[[7, 8, 9], 'hello world', '岁寒四友']
>>> mix
['小甲鱼', 3.14, [7, 8, 9], 'hello world', '岁寒四友']
>>> mix[1:]
[3.14, [7, 8, 9], 'hello world', '岁寒四友']
>>> mix[:]
['小甲鱼', 3.14, [7, 8, 9], 'hello world', '岁寒四友']
>>> mix[:4]
['小甲鱼', 3.14, [7, 8, 9], 'hello world']

列表：排序count/index（顺序.sort()和逆序.reverse()）、copy() 和 clear()、推导式

>>> list1=[123,645]
>>> list2=[234,543,789]
>>> list3=['小甲鱼', 1, 3.14]
>>> list3+'黑夜'
Traceback (most recent call last):
  File "<pyshell#29>", line 1, in <module>
    list3+'黑夜'
TypeError: can only concatenate list (not "str") to list
>>> list3+['黑夜']
['小甲鱼', 1, 3.14, '黑夜']
>>> list1<list2
True
>>> list2>list3
Traceback (most recent call last):
  File "<pyshell#32>", line 1, in <module>
    list2>list3
TypeError: '>' not supported between instances of 'int' and 'str'
>>> '小甲鱼'in list3
True

 

>>> list4.count('小甲鱼')
1
>>> list5.count(234)
10
>>> list4
['小甲鱼', 1, 3.14, '黑夜']
>>> list5
[234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789, 234, 543, 789]
>>> list5.index(234,4,9)
6
>>> list4.reverse()
>>> list4
['黑夜', 3.14, 1, '小甲鱼']
>>> list5.sort()
>>> list5
[234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 789, 789, 789, 789, 789, 789, 789, 789, 789, 789]
>>> list5.reverse()
>>> list5
[789, 789, 789, 789, 789, 789, 789, 789, 789, 789, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234]
>>> list5.sort(reverse=True)
>>> list5
[789, 789, 789, 789, 789, 789, 789, 789, 789, 789, 543, 543, 543, 543, 543, 543, 543, 543, 543, 543, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234]