March 2022
Intermediate to advanced
522 pages
13h 52m
Chinese
Content preview from Python语言及其应用（第2版）
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196
｜
第
12
章
>>> import unicodedata
>>> eacute_normalized = unicodedata.normalize('NFC', eacute_combined1)
>>> len(eacute_normalized)
1
>>> eacute_normalized == eacute1
True
>>> unicodedata.name(eacute_normalized)
'LATIN SMALL LETTER E WITH ACUTE'
'NFC'
表示
normal form, composed
（正规形式，组成）。
12.1.7
更多信息
如果想了解关于
Unicode
的更多信息，可以在网上搜索以下内容。
• Unicode HOWTO
• Pragmatic Unicode
• The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About
Unicode and Character Sets (No Excuses!)
12.2
字符串
：
正则表达式
第
5
章讨论了简单的字符串操作。有了这些入门知识，你大概已经在命令行上使用过简单
的“通配符”模式，比如
UNIX
命令
ls *.py
，该命令表示
列出所有以
.py
结尾的文件名
。
现在是时候使用
正则表达式
研究更为复杂的模式匹配了。该功能由标准模块
re
提供，我
们需要将其导入。你可以定义要匹配的字符串
模式 ...
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