April 2022
Beginner to intermediate
486 pages
10h 22m
Chinese
Content preview from 云端基因组学
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366
｜
第
12
章
12.2.2
以编辑模式打开笔记本并检查内核
运行环境准备好之前，你就可以查看笔记本的内容。请打开教程笔记本的那份从未
运行过的副本。不论你的运行环境是否就绪，
Terra
平台最初将以预览模式打开笔记
本，笔记本处于只读状态。如图
12-10
所示，预览面板顶部的一个菜单给出两种选择。
你可以利用它们以交互模式打开笔记本：“
Edit
”（编辑）选项，正常使用笔记本，
或“
Playground Mode
”，在笔记本做实验，而不保存任何改动，本章简介曾简单讨
论过该模式。
图
12
-
10
：笔记本预览页的菜单展示主要选项：预览、编辑和实验模式
点击“
Edit
”模式，并等待
Terra
平台搭完运行环境。当标准
Jupyter
菜单栏出现
后，你就知道笔记本已切换到编辑模式，如图
12-11
所示。另一更不起眼但也很重
要的符号是菜单栏右侧的“
Edit Mode
”（编辑模式），其背景为白色。如不小心以
“
Playground Mode
”打开笔记本，
Jupyter
菜单栏也会显示，但不会显示白色“
Edit
Mode
”标签，而是显示橘色“
Playground Mode
（
Edits not saved
）”「实验模式（编
辑不会自动保存）」标签。
图
12
-
11
：标准 Jupyter 菜单栏
菜单栏最右侧是
Python 3
标签和
Python
图标，表明当前所启用的内核版本为
Python 3
。你也许还记得笔记本内核是解释笔记本中代码的计算引擎，它负责执行
你运行的每个单元格。对于该笔记本，我们决定用
Python 3
内核，因为我们想利用 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.