About Python

1. python 是一个弱类型的语言 : 变量也叫做对象的引用
2. 栈 : 先进后出, 后进先出 - 桶装薯片 : 安卓系统
   队列 : 先进先出, 后进后出 - 羽毛球筒
3. 动态规划 : 将求解过程的中间结果先保存,再调用
   Python 之禅
   The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than right now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!