import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexMatches { public static void main( String args[] ){ // 按指定模式在字符串查找 String line = "This order was placed for QT3000! OK? "; String pattern = "(.*)(\\d+)(.*)&qu…
Easier Done Than Said? Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9845 Accepted Submission(s): 4784 Problem Description Password security is a tricky thing. Users prefer simple password…
[010-Regular Expresssion Matching(正則表達式匹配)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or more of the preceding element.The matching sh…
零.引言 在<Dive into Python>(深入python)中,第七章介绍正則表達式,开篇非常好的引出了正則表達式,以下借用一下:我们都知道python中字符串也有比較简单的方法,比方能够进行搜索(index,find和count),替换(replace)和解析(split),这在本系列前篇数据结构篇中有所涉及,可是有种种限制.比方要进行大写和小写不敏感的搜索时,可能就须要先对字符串进行str.lower()或str.upper()将字符串先统一转换成小写或者大写在进行搜索. 那么,本…