2020年8月21日
Patterns and Matcher In the middle of a word
摘要： The first line of the input contains a sequence of letters. The second line of the input contains some text. Your task is to determine if any of these 阅读全文
posted @ 2020-08-21 13:24 longlong6296 阅读(158) 评论(0) 推荐(0)
Regexes in programs Check IP address
摘要： An IP address consists of four numbers from 0 to 255, inclusive, divided by the dots. For example, 127.0.0.1 is a valid IP address, but 256.0.0.1 and 阅读全文
posted @ 2020-08-21 11:38 longlong6296 阅读(127) 评论(0) 推荐(0)