Python之switch

首先声明，Python没有switch！！！

通过函数与字典的结合实现

 #!/usr/bin/python
 #coding:utf-8

 from __future__ import division

 def jia(x,y):
         return x+y 

 def jian(x,y):
         return x-y 

 def cheng(x,y):
         return x*y 

 def chu(x,y):
         return x/y 

 operator = {"+":jia, "-":jian, "*":cheng, "/":chu}

 def f(x,o,y):
         print operator.get(o)(x,y)

 f(3,'/',9)