2014年7月14日
Dictionary as a set of counters
摘要： Suppose you are given a string and you want to count how many times each letters appears. There are several ways you do it:You could create 26 variabl... 阅读全文
posted @ 2014-07-14 12:56 平静缓和用胸音说爱 阅读(240) 评论(0) 推荐(0)
Dictionaries
摘要： A dictionary is like a list, but more general. In a list, the indices have to be integers; in a dictionary they can be (almost) any type. You can thin... 阅读全文
posted @ 2014-07-14 11:13 平静缓和用胸音说爱 阅读(433) 评论(0) 推荐(0)