python中switch語句用法
python中是沒用switch語句的,這應該是體現python大道至簡的思想,python中一般多用字典來代替switch來實現。
#coding: utf-8
from __future__ import division
def jia(x,y):
print x+y
def jian(x,y):
print x-y
def cheng(x,y):
print x*y
def chu(x,y):
print x/y
operator = {'+':jia,'-':jian,'*':cheng,'/':chu}
def f(x,o,y):
operator.get(o)(x,y)
f(3,'+',2)
上麵的代碼就用字典實現了選擇功能,要是在C++中實現上述功能,是用switch實現的,但是用python的字典實現起來更簡單
最後更新:2017-04-03 16:48:56