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O'Reilly Platform
book
Python语言及其应用(第2版)
by
Bill Lubanovic
March 2022
Intermediate to advanced
522 pages
13h 52m
Chinese
Posts & Telecom Press
Content preview from
Python语言及其应用(第2版)
382
第
20
章
Python
的艺术
艺术就是艺术,不是吗?
同样,水就是水!东是东,西是西,如果你把蔓越莓
像苹果酱一样炖,那么它的味道比大黄更像梅子。
——
Groucho Marx
本章和接下来的两章将讨论
Python
在
一些人类常见活动(艺术、商业和科学)中的应用。
如果你对某个领域感兴趣,那么也许会从书中获得些许灵感,或是萌发尝试新事物的
冲动。
20.1 2D
图形
所有的计算机编程语言都在一定程度上应用于计算机图形学。尽管出于效率考虑,本章用
到的很多重要平台均采用
C
或
C++
编写
,但同时也加入了
Python
库以提高生产力。下面
先来看一些
2D
图形库。
20.1.1
标准库
标准库中只有少数和图像相关的模块。
imghdr
检测某些图像文件的类型。
colorsys
在不同的色彩系统(
RGB
、
YIQ
、
HSV
和
HLS
)之间进行转换。
Python
的艺术
|
383
如果将
O
’
Reilly
的
logo
文件下载为
oreilly.png
,那么可以运行如下代码:
>>> import imghdr
>>> imghdr.what('oreilly.png')
'png'
另一个标准库是
turtle
,即“海龟作图”(
turtle graphic
),有时候用于教授青少年编程。
可以使用下列命令运行一个
demo
:
$
python -m ...
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Publisher Resources
ISBN: 9787115586223