RegEx .* 任意字符串 Lookahead and Lookbehind Assertions§ non-capturing group§ Reference§ regex101: build, test, and debug regex Regular Expressions: Regexes in Python (Part 1) – Real Python Cover - Python re(gex)? (learnbyexample.github.io) 第07章 词法分析 — 自己动手写编译器 (pandolia.net)