正则表达式30分钟入门教程
正则表达式30分钟入门教程在编写管理字符串的程序或网页时,经常会有搜索契合某些复杂规则的字符串的需要。正则表达式即是关于描绘这些规则的工具。换句话说,正则表达式即是记录文本规则的代码。很可能你使用过Windows/Dos下关于文件搜索的通配符(wildcard),也即是和?。假如你想搜索某个目录下的所有的Word文档的话,你会搜索
.doc。在这里,
会被解说成任意的字符串。和通配符类似,正则表达式也是用来进行文本匹配的工具,只不过比起通配符,它能更精确地描绘你的需求——当然,价值即是更复杂——比方你可以编写一个正则表达式,本资料共包括以下附件:
正则表达式30分钟入门教程.doc
包括多个文件,请自行下载检测!
(Regular Expression 30 Minute Getting Started Tutorial When writing programs or web pages that manage strings, there is often a need to search for strings that meet some complex rules. Regular expressions are tools for describing these rules. In other words, regular expressions are code that records text rules. Most likely, you have used the wildcard for file search under Windows/DOS, that is
And?. If you want to search all Word documents in a directory, you will search
.doc。 here
Will be interpreted as an arbitrary string. Like wildcards, regular expressions are also tools for text matching, but they can more accurately describe your needs than wildcards - of course, the value is more complex - for example, you can write a regular expression. This material includes the following accessories:
Regular Expression 30 Minute Getting Started Tutorial.doc
Including multiple files, please download and test by yourself!)
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