1.首先下载安装python3.5.1（也可自行到官网下载）
2.输出
3.列表list，为有序集合
>>> word = ['one','two','three'] 创建list
>>> word 输出list
['one', 'two', 'three']
要访问本例里面元素，索引从0开始，往前往后2位都可以
>>> word[0]
'one'
>>> word[1]
'two'
>>> word[2]
'three'
>>> word[-1]
'three'
>>> word[-2]
'two'
>>> word
['one', 'two', 'three']
>>> word[-3]
'one'
>>> word.append('four') 增加
>>> word
['one', 'two', 'three', 'four']
>>> word.insert(0,'zero')在哪插入
>>> word
['zero', 'one', 'two', 'three', 'four']
>>> word.pop()删除末尾元素
'four'
>>> word
['zero', 'one', 'two', 'three']
>>> word.pop(0)删除首位元素
'zero'
>>> word
['one', 'two', 'three']
>>> word[2] = 'threeee'替换某位元素
>>> word
['one', 'two', 'threeee']
>>> ver = ['1',1,False]不同类型集合
>>> ver
['1', 1, False]
>>> va = ['1',['1','2'],3]list可以作为元素
>>> va
['1', ['1', '2'], 3]
4.不可变列表（这里指的是指向不可变，word = (1,[1,2]) 里面的list里的元素可变），元组tuple，无增删改，定义时元素必须有逗号,否则>>> word = (1)就相当于word = 1
>>> word = (1,)
>>> word
(1,)
