Python之switch

首先声明，Python没有switch！！！

通过函数与字典的结合实现

 1 #!/usr/bin/python
 2 #coding:utf-8
 3
 4 from __future__ import division
 5
 6 def jia(x,y):
 7         return x+y
 8
 9 def jian(x,y):
10         return x-y
11
12 def cheng(x,y):
13         return x*y
14
15 def chu(x,y):
16         return x/y
17
18 operator = {"+":jia, "-":jian, "*":cheng, "/":chu}
19
20 def f(x,o,y):
21         print operator.get(o)(x,y)
22
23 f(3,‘/‘,9)