1.Python下载
2.安装。
3.打开IDLE.
4语法Python 基础教程
int，float,bool,str,list,tuple
序列。
in 和 not in
>>> ord("那")
37027
>>> ord("剧")
21095
>>>
集合set（无序的,排他性）
type({1,2,3})
<class 'set'>
{1,1,3,4,6,4}
{1, 3, 4, 6}
>>>
{1, 3, 4, 6} - {1}
{3, 4, 6}
>>> {1, 3, 4, 6} - {1,3}
{4, 6}
>>> {1, 3, 4, 6} & {3}
{3}
>>> {1, 3, 4, 6} | {9}
{1, 3, 4, 6, 9}
>>>
dict 字典
字典也没有序列
type({1:1,2:3})
<class 'dict'>
>>> {"name":"jack","sex":"men"}["name"]
'jack'
>>> a = "what"
>>> a = a + " are you"
>>> print(a)
what are you
>>>
逻辑运算符
>>> 2 and 8
8
>>> 2 or 8
2
>>> 2 not 8
SyntaxError: invalid syntax
>>> not 8
False
>>> a = 2
>>> a *=2
>>> print(a)
4
isinstance(a,str)
False
not > and > or 优先级
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