正则表达式辅助理解软件

https://blog.youkuaiyun.com/weixin_43343072/article/details/86717498?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158816262119724848363006%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=158816262119724848363006&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~baidu_landing_v2~default-4

 

这里借鉴前辈的博客，写的很好， 前辈推荐的图形理解器可以很形象的帮助我们理解 https://regexper.com/。