简介 Library Genesis的Wikipedia条目中的介绍是: Library Genesis or LibGen is a search engine for articles and books on various topics,which allows free access to content that is otherwise paywalled or not digitized elsewhere. Among others it carries PDFs of con
默认情况下,正则表达式 ^ 和 $ 忽略行结束符,仅分别与整个输入序列的开头和结尾匹配.如果激活 MULTILINE 模式,则 ^ 在输入的开头和行结束符之后(输入的结尾)才发生匹配.处于 MULTILINE 模式中时,$ 仅在行结束符之前或输入序列的结尾处匹配. import java.util.regex.Pattern; /** * Created by Frank * 使用正则表达式在文本中查找换行符 */ public class NLMatch { public static voi
(?<!href="|">)(https?:\/\/[\w\-\.!~?&=+\*\'(),\/]+)((?!\<\/\a\>).)* 这个正则可以匹配文本中以http开头的链接, 但是不会匹配那些已经被A标签包围的链接. 测试文本: Test, Here\'s an interesting in-house litigation position with JPMorgan Chase in New York I thought you might b