May 2020
Beginner to intermediate
367 pages
5h 58m
Chinese
Content preview from Julia语言编程入门
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子类型
｜
291
•
一旦程序能正常工作，找出全局变量与使用它们的函数之间的关联。
•
将相关的变量封装为一个
struct
的字段。
•
把相关的函数转换为使用这个新类型对象作为参数的方法。
练习
18-3
从
GitHub
（
http://bit.ly/2OM9myx
）下载我的
Markov
代码，按照这里介绍的
步骤把全局变量封装为名为
Markov
的一个新
struct
的属性。
术语表
编码（
encode
）
通过构造两个值集之间的一个映射，用一个值集表示另一个值集。
单元测试（
unit testing
）
测试代码正确性的一种标准化方法。
饰面板（
veneer
）
一个方法或函数，为另一个函数提供一个不同的接口而本身不做太多计算。
具体类型（
concrete type
）
这种类型可以构造对象。
抽象类型（
abstract type
）
这种类型可以作为另一个类型的父类型。
子类型（
subtyping
）
能够定义一个相关类型的层次体系。
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.