💭 写在前面
本系列博客为复习操作系统导论的笔记,内容主要参考自:
Remzi H. Arpaci-Dusseau and Andrea C. Arpaci-Dusseau, Operating Systems: Three Easy PiecesA. Silberschatz, P. Galvin, and G. Gagne,Operating System Concepts, …
以例子展示三个函数的区别:
import pprint #导入pprint模块
messageIt was a bright cold day.
count{} #空字典for character in message:count.setdefault(character,0)count[character]count[character]1"""以上代码等于设置了一个字典&#x…