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)