“正则表达式”的应用范围越来越广，有了这个强大的工具，我们可以做很多事情，如搜索一句话中某个特定的数据，屏蔽掉一些非法贴子的发言，网页中匹配特定数据，代码编辑框中字符的高亮等等，这都可以用正则表达式来完成。(The application of more and more widely, regular expressions with this powerful tool, we can do many things, such as search words in a specific data, screen out some illegal posts to speak, matching a specific web page data, code box character editing high bright and so on, which can be used to complete the regular expression.)