映射（mapping）是一种可通过名称来访问其各个值的数据结构。字典是python中唯一的内置映射类型。其中的值不按顺序排列，而是存储在键下。 1. 字典的用途通过特定的键获取其值。 2.创建和使用字典字典以类似下面的方式表示： phonebook = {'Alice':'2341', 'Beth':'9102', 'Cecil'...

文章 2024-06-13 来自：开发者社区

Python基础教程（第3版）中文版第三章使用字符串（笔记）

第3章使用字符串 1.字符串基本操作所有标准序列操作（索引、切片、成员资格检查、长度、最小值和最大值）都适用 #字符串不可变，因此不能对字符串元素赋值。 2.设置字符串的格...

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更新时间 2024-06-14 14:50:56

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分布式计算框架 MaxCompute MaxFrame

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