Python2 源码学习之字典和列表实现

1. 为什么字典比列表查询快 首先，请看下面这段代码 1 2 3 4 5 6 7 8 9 10 11 12 13 from time import time t = time() data = [chr(i) for i in range(97, 123)] # data = dict.fromkeys(data,True) print data for i in...