^.{0,100} $ 关于字符在100以内的字
^(\\\\(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])(\\([\u4e00-\u9fa5]*)(\w*))*)|([a-zA-Z]\:(\\([\u4e00-\u9fa5]*)(\w*))*)$
http://172.16.135.12:80123/asdf/asdfas/asdf
^http://((\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5]):(\d*)(/(\w*))*)$

本文详细解析了几种复杂的正则表达式模式,包括IPv4地址、文件路径及URL等,帮助读者理解如何构造和使用这些模式进行文本匹配。
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