正则表达式

  • u4_422127
    了解作者
  • 2.9MB
    文件大小
  • rar
    文件格式
  • 0
    收藏次数
  • VIP专享
    资源类型
  • 0
    下载次数
  • 2022-05-23 07:56
    上传日期
正则表达式的学习很有用,是个值得学习的知识点,在很多编程中的都用得到的一项技巧
正则表达式.rar
  • 新建文件夹
  • 正则表达式教程.chm
    41.9KB
  • mast_regex2_ch08.pdf
    594KB
  • Java正则表达式详解.doc
    374.5KB
  • java正则表达式.ppt
    732KB
  • 正则表达式入门.doc
    62.5KB
  • 正则表达式测试工具.rar
    351.6KB
  • 正则表达式
  • 新建文件夹
  • 正则表达式教程.chm
    41.9KB
  • mast_regex2_ch08.pdf
    594KB
  • Java正则表达式详解.doc
    374.5KB
  • java正则表达式.ppt
    732KB
  • 正则表达式入门.doc
    62.5KB
内容介绍
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/62feec2df97302478e730a19/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62feec2df97302478e730a19/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">8</div><div class="t m0 x2 h3 y2 ff2 fs1 fc0 sc0 ls1 ws0">Ja <span class="_ _0"></span><span class="ls2">va</span></div><div class="t m0 x3 h4 y3 ff1 fs2 fc0 sc0 ls0 ws1">Java didn&#8217;t come with a regex package until Java 1.4, so early programmers had to</div><div class="t m0 x3 h4 y4 ff1 fs2 fc0 sc0 ls3 ws2">do without regular expressions. Over time, many programmers independently</div><div class="t m0 x3 h4 y5 ff1 fs2 fc0 sc0 ls3 ws3">developed Java regex packages of varying degrees of quality, functionality, and</div><div class="t m0 x3 h4 y6 ff1 fs2 fc0 sc0 ls3 ws4">complexity. With the early-2002 release of Java 1.4, Sun entered the fray with their</div><div class="t m0 x3 h4 y7 ff3 fs3 fc0 sc0 ls0 ws0">java.util.regex<span class="_ _1"> </span><span class="ff1 fs2 ls3 ws5">package. In preparing this chapter<span class="_ _2"></span>,<span class="_"> </span>I<span class="_"> </span>looked at Sun&#8217;s package,</span></div><div class="t m0 x3 h4 y8 ff1 fs2 fc0 sc0 ls0 ws6">and a few others (detailed starting on page 372). So which one is best? As you&#8217;ll</div><div class="t m0 x3 h4 y9 ff1 fs2 fc0 sc0 ls3 ws7">soon see, there<span class="_"> </span>can be many ways to judge that.</div><div class="t m0 x3 h4 ya ff4 fs2 fc0 sc0 ls0 ws8">In This Chapter<span class="_ _3"> </span><span class="ff1 ws0">Befor <span class="_ _4"></span><span class="ws9">e<span class="_"> </span>looking at what&#8217;s in this chapter<span class="_ _2"></span>,<span class="_"> </span>it&#8217;s important to mention</span></span></div><div class="t m0 x3 h4 yb ff1 fs2 fc0 sc0 ls0 ws0">what&#8217;s<span class="_ _5"> </span><span class="ff5">not<span class="_ _5"> </span></span><span class="ls3 wsa">in this chapter<span class="_ _2"></span>.<span class="_"> </span>In<span class="_"> </span>short, this chapter doesn&#8217;t restate everything from</span></div><div class="t m0 x3 h4 yc ff1 fs2 fc0 sc0 ls3 wsb">Chapters 1 through 6. I understand that some readers interested only in Java may</div><div class="t m0 x3 h4 yd ff1 fs2 fc0 sc0 ls0 wsc">be inclined to start their reading with this chapter<span class="_ _2"></span>,<span class="_"> </span>and I want to encourage them</div><div class="t m0 x3 h4 ye ff1 fs2 fc0 sc0 ls0 wsd">not to miss the bene&#64257;ts of the preface and the earlier chapters: Chapters 1, 2,</div><div class="t m0 x3 h4 yf ff1 fs2 fc0 sc0 ls3 wse">and 3 introduce basic concepts, features, and techniques involved with regular</div><div class="t m0 x3 h4 y10 ff1 fs2 fc0 sc0 ls0 ws0">expr <span class="_ _4"></span><span class="wsf">essions,<span class="_"> </span>while Chapters 4, 5, and 6 offer important keys to regex understand-</span></div><div class="t m0 x3 h4 y11 ff1 fs2 fc0 sc0 ls3 ws7">ing that directly apply to every Java regex package that I know of.</div><div class="t m0 x3 h4 y12 ff1 fs2 fc0 sc0 ls0 ws10">As for this chapter<span class="_ _2"></span>,<span class="_"> </span>it<span class="_"> </span>has several distinct parts. The &#64257;rst part, consisting of &#8220;Judging</div><div class="t m0 x3 h4 y13 ff1 fs2 fc0 sc0 ls0 ws11">a<span class="_"> </span>Regex Package&#8221; and &#8220;Object Models,<span class="_ _6"></span>&#8221;<span class="_"> </span>looks abstractly at some concepts that help</div><div class="t m0 x3 h4 y14 ff1 fs2 fc0 sc0 ls0 ws12">you to understand an unfamiliar package more<span class="_"> </span>quickly, and to help judge its suit-</div><div class="t m0 x3 h4 y15 ff1 fs2 fc0 sc0 ls0 ws13">ability for your needs. The second part, &#8220;Packages, Packages, Packages,<span class="_ _6"></span>&#8221;<span class="_"> </span>moves</div><div class="t m0 x3 h4 y16 ff1 fs2 fc0 sc0 ls0 ws14">away from the abstract to say a few words about the speci&#64257;c packages I looked at</div><div class="t m0 x3 h4 y17 ff1 fs2 fc0 sc0 ls3 ws15">while researching this book. Finally, we get to the real fun, as the third part talks</div><div class="t m0 x3 h4 y18 ff1 fs2 fc0 sc0 ls0 ws16">in speci&#64257;cs about two of the packages, Sun&#8217;s<span class="_"> </span><span class="ff3 fs3 ws0">java.util.regex<span class="_ _7"> </span></span><span class="ws17">and Jakarta&#8217;s<span class="_"> </span><span class="fs3 ws0">ORO</span></span></div><div class="t m0 x3 h4 y19 ff1 fs2 fc0 sc0 ls0 ws0">package.</div><div class="t m0 x4 h5 y1a ff2 fs3 fc0 sc0 ls0 ws0">365</div><div class="t m0 x5 h6 y1b ff6 fs4 fc0 sc0 ls0 ws0">25 June 2002 09:00</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div> </body> </html>
评论
    相关推荐
    • 正则表达式
      利用正则表达式匹配字符串,找到符合规律的字符串,这里包括多种匹配方式,如匹配出现两个相同字母的单词,或有某个后缀的单词等
    • 正则表达式
      正则表达式简介  为什么需要正则表达式?  文本的复杂处理。  正则表达式的优势和用途?  一种强大而灵活的文本处理工具;  提供了一种紧凑的、动态的方式,能够以一种完全通用的方式来解决各种字符串...
    • 正则表达式
      多个正则表达式资料,较全面,要的人块下手哦。多个正则表达式资料,较全面,要的人块下手哦。
    • 正则表达式
      《精通正则表达式(第3版)》主要讲解了正则表达式的特性和流派、匹配原理、优化原则、实用诀窍以及调校措施。
    • 正则表达式
      正则表达式是烦琐的,但是强大的,学会之后的应用会让你除了提高效率外,会给你带来绝对的成就感。只要认真去阅读这些资料,加上应用的时候进行一定的参考,掌握正则表达式不是问题。
    • 正则表达式
      利用此工具,输入正则表达式之后则可以进行验证其正确性,进而大大提高了使用正则表达式的准确性
    • 正则表达式
      正则表达式调试器是一个小软件,用于调试自己编写的正则表达式正确与否。输入正则表达式和自己需要匹配的内容就可以了。很好用的。
    • 正则表达式
      都是讲的关于正则表达式的一些整理过的资料 对想了解这方面或想学习这方面人来说 就是世纪福音呀 好东东
    • 正则表达式
      正则表达式是一个程序员不得不掌握的利器。本资源收藏了目前最好的几个正则表达式文章,大家有空可以看看!
    • SIM800C_MQTT.rar
      使用SIM800C模块,使用MQTT协议,连接中国移动onenet平台,能实现数据的订阅、发布、存储等