Python3基础-赋值

2019独角兽企业重金招聘Python工程师标准>>>

普通赋值方式

>>> a = 1
>>> b = 2
>>> c = a + b
>>> c
3

序列解包(递归解包)

>>> x,y,z = 1,2,3
>>> print(x)
1
>>> print(x,y,z)
1 2 3

序列交换

>>> print(x,y)
1 2
>>> x,y=y,x
>>> print(x,y)
2 1

>>> list = 1,2,3
>>> print(list)
(1, 2, 3)
>>> a,b,c=list
>>> print(a)
1

链式赋值

>>> a = b =1
>>> a
1
>>> b
1

增量赋值

>>> x = 2
>>> x += 1
>>> x
3
>>> x *= 2
>>> x
6

>>> a='th'
>>> a+='is'
>>> a
'this'
>>> a*=2
>>> a
'thisthis'

转载于:https://my.oschina.net/zhaojunhui/blog/1619043