Single Dispatch in Java and Python
1. 基本概念
Recent Posts
《Python黑魔法手册》摘抄
感谢作者王炳明写了这么多内容。这本《Python黑魔法手册》语言平实，举例得当。虽然前面有些简单的 “黑魔法” 我看来也就是 “茴香豆的四种写法”，但后面高级的、有趣的内容也不少，这里摘一摘。
Variable / Bound Variable / Free Variable / Scope / Closure
1. Name Binding / Name Resolution / Variable / Indentifier / Value / Reference
Algorithm Quizzes
Quiz 1
Subarray / Substring / Subsequence
Subsequence
LeetCode: Stock Problems
0. 文字游戏
Python: enumerate()
1. enumerate(start=0)
Python: Be cautious when using generators/iterators in nested loops
Simply because generators/itertors would drain.
Python: It’s safe to slice a list with index out of range
用单个下标 access 直接返回 list 的单个 element，用 slice (或者严格一点说是用一个 slice object 去 access) 返回一个 sub-list，这俩都是很常见的操作。但是：