{"id":441,"date":"2013-09-03T11:05:16","date_gmt":"2013-09-03T03:05:16","guid":{"rendered":"http:\/\/coderbee.net\/?p=441"},"modified":"2013-09-04T21:38:03","modified_gmt":"2013-09-04T13:38:03","slug":"%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e5%8f%8d%e5%90%91%e5%bc%95%e7%94%a8","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/java\/20130903\/441","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f\u53cd\u5411\u5f15\u7528"},"content":{"rendered":"<p>\u53c2\u8003\uff1a <a href=\"http:\/\/java.dzone.com\/articles\/backreferences-java-regular\">http:\/\/java.dzone.com\/articles\/backreferences-java-regular<\/a><\/p>\n<p>\u4ee5\u524d\u6ca1\u7528\u8fc7\u8fd9\u79cd\u7528\u6cd5\uff0cmark\u3002<\/p>\n<h3>\u4ecb\u7ecd<\/h3>\n<p>\u53cd\u5411\u5f15\u7528\u662f\u57fa\u4e8e<strong>\u7ec4<\/strong>\u7684\uff0c\u7ec4\u5c31\u662f\u628a\u591a\u4e2a\u5b57\u7b26\u5f53\u4f5c\u5355\u4e00\u7684\u5355\u5143\u770b\u5f85\u3002\u7ec4\u662f\u901a\u8fc7\u5728\u4e00\u5bf9\u5c0f\u62ec\u53f7\uff08<code>()<\/code>\uff09\u5185\u653e\u7f6e\u6b63\u5219\u5b57\u7b26\u6765\u521b\u5efa\u7684\uff0c\u6bcf\u5bf9\u5c0f\u62ec\u53f7\u5bf9\u5e94\u4e00\u4e2a\u7ec4\u3002<\/p>\n<p>\u53cd\u5411\u5f15\u7528\u662f\u4fbf\u6377\u7684\uff0c\u5141\u8bb8\u91cd\u590d\u6b63\u5219\u800c\u4e0d\u9700\u8981\u518d\u5199\u4e00\u6b21\u3002\u53ef\u4ee5\u901a\u8fc7 <code>\\#<\/code> \u6765\u5f15\u7528\u524d\u9762\u5b9a\u4e49\u7684\u7ec4\uff0c<code>#<\/code> \u662f\u7ec4\u7684\u5e8f\u53f7\uff0c\u4ece <code>1<\/code> \u5f00\u59cb\u3002<\/p>\n<p>\u6b63\u5219\u5f15\u64ce\u5728\u5904\u7406\u5339\u914d\u65f6\uff0c\u8981\u6c42 \u53cd\u5411\u5f15\u7528\u4e0e\u6240\u5f15\u7528\u7684\u7ec4  \u5339\u914d\u7684\u5185\u5bb9\u5fc5\u987b\u662f\u4e00\u6837\u7684\uff1a\u5373\uff0c<code>(\\d\\d\\d)\\1<\/code> \u5339\u914d <code>123123<\/code>\uff0c\u800c\u4e0d\u5339\u914d<code>123456<\/code>\u3002<\/p>\n<p><!--more--><\/p>\n<h3>\u4e3e\u4f8b<\/h3>\n<pre>\n<code>\nString str = \"123123789789\";\nPattern p = Pattern.compile(\"(\\\\d\\\\d\\\\d)\\\\1\");\nMatcher m = p.matcher(str);\nSystem.out.println(\"group count:\" + m.groupCount());\nwhile (m.find()) {\n    String word = m.group();\n    System.out.println(word + \" \" + m.start() + \" \" + m.end());\n}\n\nSystem.out.println(\"\\n\\n\");\n\nString pattern = \"\\\\b(\\\\w+)\\\\b[\\\\w\\\\W]*\\\\b\\\\1\\\\b\";\nPattern p2 = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE);\nString phrase = \"unique is not duplicate but unique, Duplicate is duplicate.\";\nMatcher m2 = p2.matcher(phrase);\nwhile (m2.find()) {\n    String val = m2.group();\n    System.out.println(\"Matching subsequence is \\\"\" + val + \"\\\"\");\n    System.out.println(\"Duplicate word: \" + m2.group(1) + \"\\n\");\n}\n<\/code>\n<\/pre>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>\ngroup count:1\n123123 0 6\n789789 6 12\n\n\n\nMatching subsequence is \"unique is not duplicate but unique\"\nDuplicate word: unique\n\nMatching subsequence is \"Duplicate is duplicate\"\nDuplicate word: Duplicate\n<\/pre>\n<hr\/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53c2\u8003\uff1a http:\/\/java.dzone.com\/articles\/backr &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/java\/20130903\/441\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[231,88],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/441"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=441"}],"version-history":[{"count":7,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/441\/revisions"}],"predecessor-version":[{"id":448,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/441\/revisions\/448"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}