摘要：
Github.Latex-Workshop上的Issue "latex-workshop.synctex.afterBuild.enabled": true, "latex-workshop.latex.autoBuild.run": "onSave", "latex-workshop.view.p 阅读全文
摘要：
Groupings and backreferences 注意，不需要使用repr 阅读全文
摘要：
import re import urllib.parse # https://learnbyexample.github.io/py_regular_expressions/groupings-and-backreferences.html s = input("input string for 阅读全文