{"id":55067,"date":"2025-08-13T15:49:41","date_gmt":"2025-08-13T07:49:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/55067.html"},"modified":"2025-08-13T15:49:41","modified_gmt":"2025-08-13T07:49:41","slug":"%e4%b8%80%e7%af%87%e5%b8%a6%e4%bd%a0%e7%8e%a9%e8%bd%ac%ef%bc%9a%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%ef%bc%88java%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/55067.html","title":{"rendered":"\u4e00\u7bc7\u5e26\u4f60\u73a9\u8f6c\uff1a\u6b63\u5219\u8868\u8fbe\u5f0f\uff08Java\uff09"},"content":{"rendered":"

\u4e00\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u57fa\u7840<\/h3>\n

1.1 \u57fa\u672c\u6982\u5ff5<\/h4>\n

（1）\u5b9a\u4e49：\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u7528\u4e8e\u63cf\u8ff0\u5b57\u7b26\u4e32\u6a21\u5f0f\u7684\u5f62\u5f0f\u5316\u8868\u793a\u6cd5，\u901a\u8fc7\u7279\u5b9a\u5b57\u7b26\u548c\u5b83\u4eec\u7684\u7ec4\u5408\u6765\u521b\u5efa \u201c\u89c4\u5219\u5b57\u7b26\u4e32\u201d，\u7528\u4e8e\u5339\u914d\u3001\u67e5\u627e\u548c\u66ff\u6362\u6587\u672c\u3002<\/p>\n

（2）\u7528\u9014：\u5e38\u7528\u4e8e\u6587\u672c\u5904\u7406\u4efb\u52a1，\u5982\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u683c\u5f0f（\u90ae\u7bb1\u3001\u7535\u8bdd\u53f7\u7801\u7b49）\u3001\u4ece\u6587\u672c\u4e2d\u63d0\u53d6\u7279\u5b9a\u4fe1\u606f\u3001\u66ff\u6362\u6587\u672c\u4e2d\u7684\u67d0\u4e9b\u90e8\u5206\u7b49\u7b49\u3002\u8bf4\u767d\u4e86，\u5c31\u662f\u7528\u4e8e\u5904\u7406\u590d\u6742\u7684\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n

\n

1.2\u5e38\u7528\u7b26\u53f7\u4e0e\u5143\u5b57\u7b26（\u65b9\u4fbf\u67e5\u627e<\/span>）<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

\u7b26\u53f7<\/p>\n<\/td>\n

\n

\u542b\u4e49<\/p>\n<\/td>\n

\n

\u793a\u4f8b\u53ca\u89e3\u91ca<\/p>\n<\/td>\n<\/tr>\n

\n

\u666e\u901a\u5b57\u7b26<\/p>\n<\/td>\n

\n

\u5339\u914d\u81ea\u8eab<\/p>\n<\/td>\n

\n

\u5982a\u5339\u914d\u5b57\u7b26a，5\u5339\u914d\u5b57\u7b265<\/p>\n<\/td>\n<\/tr>\n

\n

.<\/p>\n<\/td>\n

\n

\u5339\u914d\u9664\u6362\u884c\u7b26\u5916\u7684\u4efb\u610f\u5355\u4e2a\u5b57\u7b26<\/p>\n<\/td>\n

\n

a.c\u53ef\u5339\u914dabc\u3001a1c\u7b49，\u4f46\u4e0d\u5339\u914da\\\\nc<\/p>\n<\/td>\n<\/tr>\n

\n

^<\/p>\n<\/td>\n

\n

\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u5934<\/p>\n<\/td>\n

\n

^abc\u53ef\u5339\u914d\u4ee5abc\u5f00\u5934\u7684\u5b57\u7b26\u4e32，\u5982abcdef，\u4f46\u4e0d\u5339\u914ddabc<\/p>\n<\/td>\n<\/tr>\n

\n

$<\/p>\n<\/td>\n

\n

\u5339\u914d\u5b57\u7b26\u4e32\u7684\u7ed3\u5c3e<\/p>\n<\/td>\n

\n

abc$\u53ef\u5339\u914d\u4ee5abc\u7ed3\u5c3e\u7684\u5b57\u7b26\u4e32，\u5982defabc，\u4f46\u4e0d\u5339\u914dabcdef<\/p>\n<\/td>\n<\/tr>\n

\n

*<\/p>\n<\/td>\n

\n

\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u591a\u6b21<\/p>\n<\/td>\n

\n

a*\u53ef\u5339\u914d\u7a7a\u5b57\u7b26\u4e32\u3001a\u3001aa\u3001aaa\u7b49；<\/p>\n

(ab)*\u53ef\u5339\u914d\u7a7a\u5b57\u7b26\u4e32\u3001ab\u3001abab\u7b49<\/p>\n<\/td>\n<\/tr>\n

\n

+<\/p>\n<\/td>\n

\n

\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u4e00\u6b21\u6216\u591a\u6b21<\/p>\n<\/td>\n

\n

a+\u53ef\u5339\u914da\u3001aa\u3001aaa\u7b49；<\/p>\n

(ab)+\u53ef\u5339\u914dab\u3001abab\u7b49<\/p>\n<\/td>\n<\/tr>\n

\n

?<\/p>\n<\/td>\n

\n

\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u4e00\u6b21<\/p>\n<\/td>\n

\n

a?\u53ef\u5339\u914d\u7a7a\u5b57\u7b26\u4e32\u6216a；<\/p>\n

(ab)?\u53ef\u5339\u914d\u7a7a\u5b57\u7b26\u4e32\u6216ab<\/p>\n<\/td>\n<\/tr>\n

\n

[]<\/p>\n<\/td>\n

\n

\u5b57\u7b26\u96c6\u5408，\u5339\u914d\u5176\u4e2d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26<\/p>\n<\/td>\n

\n

[abc] \u53ef\u5339\u914da\u6216b\u6216c；<\/p>\n

[0 – 9]\u53ef\u5339\u914d\u4efb\u610f\u4e00\u4f4d\u6570\u5b57<\/p>\n<\/td>\n<\/tr>\n

\n

[^]<\/p>\n<\/td>\n

\n

\u5426\u5b9a\u5b57\u7b26\u96c6\u5408，<\/p>\n

\u5339\u914d\u4e0d\u5728\u5176\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26<\/p>\n<\/td>\n

\n

[^abc]\u53ef\u5339\u914d\u9664a\u3001b\u3001c\u4e4b\u5916\u7684\u4efb\u610f\u5b57\u7b26<\/p>\n<\/td>\n<\/tr>\n

\n

()<\/p>\n<\/td>\n

\n

\u5206\u7ec4，\u6539\u53d8\u4f18\u5148\u7ea7\u6216\u7528\u4e8e\u53cd\u5411\u5f15\u7528<\/p>\n<\/td>\n

\n

(ab)+\u8868\u793aab\u6574\u4f53\u91cd\u590d\u591a\u6b21；<\/p>\n

(a(bc))\u4e2d，\\\\1\u4ee3\u8868\u6574\u4e2aa(bc)，\\\\2\u4ee3\u8868bc<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\<\/p>\n<\/td>\n

\n

\u8f6c\u4e49\u5b57\u7b26，\u4f7f\u7279\u6b8a\u5b57\u7b26\u5339\u914d\u81ea\u8eab<\/p>\n<\/td>\n

\n

\\\\.\u5339\u914d\u5b57\u7b26.；<\/p>\n

\\\\*\u5339\u914d\u5b57\u7b26*<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\d<\/p>\n<\/td>\n

\n

\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u6570\u5b57，\u7b49\u4ef7\u4e8e[0 – 9]<\/p>\n<\/td>\n

\n

\\\\d\u53ef\u5339\u914d0\u52309\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u6570\u5b57，<\/p>\n

\u5982a\\\\dc\u53ef\u5339\u914da1c\u3001a2c\u7b49<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\D<\/p>\n<\/td>\n

\n

\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u975e\u6570\u5b57\u5b57\u7b26，<\/p>\n

\u7b49\u4ef7\u4e8e[^0 – 9]<\/p>\n<\/td>\n

\n

\\\\D\u53ef\u5339\u914d\u9664\u6570\u5b57\u5916\u7684\u5b57\u7b26，\u5982\\\\Da\u53ef\u5339\u914da\u3001b\u3001@\u7b49\u4e0e\u6570\u5b57\u4e0d\u540c\u7684\u5b57\u7b26<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\s<\/p>\n<\/td>\n

\n

\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u7a7a\u767d\u5b57\u7b26，\u5305\u62ec\u7a7a\u683c\u3001\u5236\u8868\u7b26\u3001\u6362\u884c\u7b26\u7b49，\u7b49\u4ef7\u4e8e[ \\\\f\\\\n\\\\r\\\\t\\\\v]<\/p>\n<\/td>\n

\n

\u5982a\\\\sb\u53ef\u5339\u914da b（\u4e2d\u95f4\u6709\u7a7a\u683c）\u3001<\/p>\n

a\\\\n b（a\u548cb\u4e2d\u95f4\u6362\u884c）\u7b49<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\S<\/p>\n<\/td>\n

\n

\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u975e\u7a7a\u767d\u5b57\u7b26，<\/p>\n

\u7b49\u4ef7\u4e8e[^ \\\\f\\\\n\\\\r\\\\t\\\\v]<\/p>\n<\/td>\n

\n

\\\\S\u53ef\u5339\u914d\u9664\u7a7a\u767d\u5b57\u7b26\u5916\u7684\u5b57\u7b26，\u5982\\\\Sa\u53ef\u5339\u914d1a\u3001ba\u7b49，\u53ea\u8981\u4e0d\u662f\u7a7a\u767d\u5b57\u7b26\u5f00\u5934\u5373\u53ef<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\w<\/p>\n<\/td>\n

\n

\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5355\u8bcd\u5b57\u7b26，\u5305\u62ec\u5b57\u6bcd\u3001\u6570\u5b57\u548c\u4e0b\u5212\u7ebf，\u7b49\u4ef7\u4e8e[a-zA – Z0 – 9_]<\/p>\n<\/td>\n

\n

\\\\w\u53ef\u5339\u914da\u5230z\u3001A\u5230Z\u30010\u52309\u4ee5\u53ca_，\u5982\\\\w+\u53ef\u5339\u914dabc\u3001123\u3001abc123_\u7b49\u5355\u8bcd\u5b57\u7b26\u7ec4\u5408<\/p>\n<\/td>\n<\/tr>\n

\n

\\\\W<\/p>\n<\/td>\n

\n

\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u975e\u5355\u8bcd\u5b57\u7b26，<\/p>\n

\u7b49\u4ef7\u4e8e[^a-zA – Z0 – 9_]<\/p>\n<\/td>\n

\n

\\\\W\u53ef\u5339\u914d\u9664\u5355\u8bcd\u5b57\u7b26\u5916\u7684\u5b57\u7b26，<\/p>\n

\u5982\\\\W+\u53ef\u5339\u914d@\u3001#\u3001（\u7a7a\u683c）\u7b49<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

1.3\u00a0\u91cf\u8bcd<\/h4>\n

（<\/span>1<\/span>）<\/span>*（\u96f6\u6b21\u6216\u591a\u6b21）<\/span>：\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u591a\u6b21\u3002\u4f8b\u5982a*，\u53ef\u4ee5\u5339\u914d\u7a7a\u5b57\u7b26\u4e32，\u4e5f\u53ef\u4ee5\u5339\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u8fde\u7eed\u7684a，\u5982a\u3001aa\u3001aaa\u7b49\u3002<\/p>\n

（<\/span>2<\/span>）<\/span>+（\u4e00\u6b21\u6216\u591a\u6b21）<\/span>：\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u4e00\u6b21\u6216\u591a\u6b21\u3002\u4f8b\u5982a+，\u81f3\u5c11\u5339\u914d\u4e00\u4e2aa，\u53ef\u4ee5\u662fa\u3001aa\u3001aaa\u7b49，\u4f46\u4e0d\u80fd\u5339\u914d\u7a7a\u5b57\u7b26\u4e32\u3002<\/p>\n

（<\/span>3<\/span>）<\/span>?（\u96f6\u6b21\u6216\u4e00\u6b21）<\/span>：\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u96f6\u6b21\u6216\u4e00\u6b21\u3002\u4f8b\u5982a?，\u53ef\u4ee5\u5339\u914d\u7a7a\u5b57\u7b26\u4e32，\u4e5f\u53ef\u4ee5\u5339\u914d\u4e00\u4e2aa\u3002<\/p>\n

（<\/span>4<\/span>）<\/span>{n}（\u6070\u597d n \u6b21）<\/span>：\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u6070\u597d n \u6b21\u3002\u4f8b\u5982a{3}，\u53ea\u80fd\u5339\u914d\u8fde\u7eed\u7684\u4e09\u4e2aa，\u5373aaa\u3002<\/p>\n

（<\/span>5<\/span>）<\/span>{n,}（\u81f3\u5c11 n \u6b21）<\/span>：\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u81f3\u5c11 n \u6b21\u3002\u4f8b\u5982a{2,}，\u53ef\u4ee5\u5339\u914daa\u3001aaa\u3001aaaa\u7b49\u4e24\u4e2a\u6216\u66f4\u591a\u4e2a\u8fde\u7eed\u7684a\u3002<\/p>\n

（<\/span>6<\/span>）<\/span>{n,m}（n \u5230 m \u6b21）<\/span>：\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f n \u5230 m \u6b21（n \u548c m \u4e3a\u975e\u8d1f\u6574\u6570，\u4e14 n <= m）\u3002\u4f8b\u5982a{1,3}，\u53ef\u4ee5\u5339\u914da\u3001aa\u3001aaa\u3002<\/p>\n

\n

1.4\u00a0\u5b57\u7b26\u96c6<\/h4>\n

（1）\u666e\u901a\u5b57\u7b26\u96c6[]：<\/h5>\n

\u5728\u65b9\u62ec\u53f7\u5185\u5217\u51fa\u7684\u5b57\u7b26，\u8868\u793a\u5339\u914d\u5176\u4e2d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\u3002\u4f8b\u5982[abc]，\u53ef\u4ee5\u5339\u914da\u3001b\u6216c\u3002\u3002<\/p>\n

（2）\u8303\u56f4\u5b57\u7b26\u96c6[a – z]\u3001[0 – 9]\u7b49\u7b49：<\/h5>\n

\u901a\u8fc7\u8fde\u5b57\u7b26\u8868\u793a\u5b57\u7b26\u8303\u56f4\u3002[a – z]\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5c0f\u5199\u5b57\u6bcd，[0 – 9]\u5339\u914d\u4efb\u610f\u4e00\u4e2a\u6570\u5b57\u3002<\/p>\n

（3）\u5426\u5b9a\u5b57\u7b26\u96c6[^]：<\/h5>\n

\u5728\u65b9\u62ec\u53f7\u5185\u5f00\u5934\u4f7f\u7528^，\u8868\u793a\u5339\u914d\u4e0d\u5728\u62ec\u53f7\u5185\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\u3002\u4f8b\u5982[^abc]，\u53ef\u4ee5\u5339\u914d\u9664\u4e86a\u3001b\u3001c\u4e4b\u5916\u7684\u4efb\u610f\u5b57\u7b26\u3002<\/p>\n

\n

\u4e8c\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5339\u914d\u6a21\u5f0f<\/h3>\n

2.1 \u8d2a\u5a6a\u5339\u914d\u4e0e\u975e\u8d2a\u5a6a\u5339\u914d<\/h4>\n

（1）\u8d2a\u5a6a\u5339\u914d：<\/h5>\n

\u6b63\u5219\u8868\u8fbe\u5f0f\u9ed8\u8ba4\u91c7\u7528\u8d2a\u5a6a\u5339\u914d\u6a21\u5f0f，\u5373\u5c3d\u53ef\u80fd\u591a\u5730\u5339\u914d\u5b57\u7b26\u3002\u4f8b\u5982，\u5bf9\u4e8e\u5b57\u7b26\u4e32"aaaab"，\u6b63\u5219\u8868\u8fbe\u5f0fa+\u4f1a\u5339\u914d"aaaa"，\u56e0\u4e3a\u5b83\u4f1a\u4e00\u76f4\u5339\u914d\u5230\u4e0d\u80fd\u518d\u5339\u914d\u4e3a\u6b62\u3002<\/p>\n

（2）\u975e\u8d2a\u5a6a\u5339\u914d：<\/h5>\n

\u5728\u91cf\u8bcd\u540e\u9762\u52a0\u4e0a?\u8868\u793a\u975e\u8d2a\u5a6a\u5339\u914d，\u5373\u5c3d\u53ef\u80fd\u5c11\u5730\u5339\u914d\u5b57\u7b26\u3002\u5bf9\u4e8e\u4e0a\u8ff0\u5b57\u7b26\u4e32"aaaab"，\u6b63\u5219\u8868\u8fbe\u5f0fa+?\u4f1a\u5339\u914d"a"，\u7136\u540e\u7ee7\u7eed\u5f80\u540e\u5339\u914d\u4e0b\u4e00\u4e2a"a"\u3002
\n\u00a0<\/p>\n

\u4f8b\u9898：\u5bf9\u4e8e\u5b57\u7b26\u4e32"aabbb"，\u5206\u522b\u7528b+\u548cb+?\u53bb\u5339\u914d，b+\u4f1a\u5339\u914d"bbb"；\u901a\u8fc7Matcher\u7684find()\u65b9\u6cd5\u5faa\u73af\u67e5\u627e\u65f6，b+?\u4f1a\u4f9d\u6b21\u5339\u914d"b"\u3001"b"\u3001"b"\u3002<\/p>\n

import java.util.regex.Matcher;
\nimport java.util.regex.Pattern;<\/p>\n

public class Example {
\n public static void main(String[] args) {
\n String str = "aabbb";
\n \/\/ \u8d2a\u5a6a\u5339\u914d
\n Matcher greedyMatcher = Pattern.compile("b+").matcher(str);
\n if (greedyMatcher.find()) {
\n System.out.println("\u8d2a\u5a6a\u5339\u914d\u7ed3\u679c：" + greedyMatcher.group()); \/\/ \u8f93\u51fa "bbb"
\n }
\n \/\/ \u975e\u8d2a\u5a6a\u5339\u914d
\n Matcher lazyMatcher = Pattern.compile("b+?").matcher(str);
\n System.out.print("\u975e\u8d2a\u5a6a\u5339\u914d\u7ed3\u679c：");
\n while (lazyMatcher.find()) {
\n System.out.print(lazyMatcher.group() + " "); \/\/ \u8f93\u51fa "b b b "
\n }
\n }
\n}<\/p>\n

2.2 \u5168\u5c40\u5339\u914d\u4e0e\u5c40\u90e8\u5339\u914d<\/h4>\n

（1）\u5168\u5c40\u5339\u914d：\u5728 Java \u4e2d，\u901a\u8fc7Matcher\u7684find()\u65b9\u6cd5\u5faa\u73af\u8c03\u7528\u5b9e\u73b0\u5168\u5c40\u5339\u914d，\u5373\u904d\u5386\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u7b26\u5408\u6a21\u5f0f\u7684\u90e8\u5206\u3002<\/p>\n

（2）\u5c40\u90e8\u5339\u914d：\u9ed8\u8ba4\u60c5\u51b5\u4e0b，\u4f7f\u7528Matcher\u7684find()\u65b9\u6cd5\u9996\u6b21\u8c03\u7528\u4ec5\u8fd4\u56de\u7b2c\u4e00\u4e2a\u5339\u914d\u7684\u7ed3\u679c，\u5373\u5c40\u90e8\u5339\u914d\u3002
\n\u4f8b\u9898：\u5bf9\u4e8e\u5b57\u7b26\u4e32"123abc456abc"，\u5206\u522b\u5b9e\u73b0\u5c40\u90e8\u5339\u914d\u548c\u5168\u5c40\u5339\u914d：<\/p>\n

import java.util.regex.Matcher;
\nimport java.util.regex.Pattern;<\/p>\n

public class Example {
\n public static void main(String[] args) {
\n String str = "123abc456abc";
\n Pattern pattern = Pattern.compile("abc");
\n Matcher matcher = pattern.matcher(str);
\n \/\/ \u5c40\u90e8\u5339\u914d（\u83b7\u53d6\u7b2c\u4e00\u4e2a\u7ed3\u679c）
\n if (matcher.find()) {
\n System.out.println("\u5c40\u90e8\u5339\u914d\u7ed3\u679c：" + matcher.group()); \/\/ \u8f93\u51fa "abc"
\n }
\n \/\/ \u5168\u5c40\u5339\u914d（\u83b7\u53d6\u6240\u6709\u7ed3\u679c）
\n System.out.print("\u5168\u5c40\u5339\u914d\u7ed3\u679c：");
\n matcher.reset(); \/\/ \u91cd\u7f6e\u5339\u914d\u5668，\u91cd\u65b0\u5f00\u59cb\u5339\u914d
\n while (matcher.find()) {
\n System.out.print(matcher.group() + " "); \/\/ \u8f93\u51fa "abc abc "
\n }
\n }
\n}<\/p>\n

2.3 \u533a\u5206\u5927\u5c0f\u5199\u4e0e\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u5339\u914d<\/h4>\n

（1）\u533a\u5206\u5927\u5c0f\u5199\u5339\u914d：<\/p>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b，\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684\u3002\u4f8b\u5982[A-Z]\u53ea\u80fd\u5339\u914d\u5927\u5199\u5b57\u6bcd，[a-z]\u53ea\u80fd\u5339\u914d\u5c0f\u5199\u5b57\u6bcd\u3002\u5bf9\u4e8e\u5b57\u7b26\u4e32"Abc"，\u6b63\u5219\u8868\u8fbe\u5f0f[a-z]{3}\u4e0d\u80fd\u5339\u914d，\u56e0\u4e3a\u5176\u4e2d\u5305\u542b\u5927\u5199\u5b57\u6bcdA\u3002<\/p>\n

（2）\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u5339\u914d：<\/p>\n

\u5728 Java \u4e2d，\u901a\u8fc7Pattern.CASE_INSENSITIVE\u6807\u5fd7\u5b9e\u73b0\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u5339\u914d\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5206\u7ec4\u4e0e\u6355\u83b7<\/h3>\n

3.1 \u5206\u7ec4\u7684\u6982\u5ff5\u4e0e\u7528\u9014<\/h4>\n

（1）\u5206\u7ec4\u5b9a\u4e49：<\/h5>\n

\u4f7f\u7528\u5706\u62ec\u53f7()\u5c06\u591a\u4e2a\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u7ec4\u5408\u5728\u4e00\u8d77，\u5f62\u6210\u4e00\u4e2a\u903b\u8f91\u5355\u5143\u3002\u4f8b\u5982(ab)+，\u8868\u793aab\u8fd9\u4e2a\u7ec4\u5408\u53ef\u4ee5\u91cd\u590d\u4e00\u6b21\u6216\u591a\u6b21\u3002<\/p>\n

（2）\u7528\u9014：<\/h5>\n

\u6539\u53d8\u4f18\u5148\u7ea7，\u4f7f\u62ec\u53f7\u5185\u7684\u90e8\u5206\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u8fdb\u884c\u64cd\u4f5c；\u8fd8\u53ef\u7528\u4e8e\u540e\u7eed\u7684\u53cd\u5411\u5f15\u7528\u3002\u4f8b\u5982(a(bc))，\\\\1\u4ee3\u8868\u6574\u4e2aa(bc)，\\\\2\u4ee3\u8868bc\u3002\u4f8b\u5982，\u5bf9\u4e8e\u5b57\u7b26\u4e32"abcabc"，\u7528(abc)+\u53ef\u4ee5\u5339\u914d\u6574\u4e2a\u5b57\u7b26\u4e32，\u56e0\u4e3aabc\u8fd9\u4e2a\u7ec4\u5408\u91cd\u590d\u4e86\u4e24\u6b21\u3002<\/p>\n

3.2 \u6355\u83b7\u7ec4\u4e0e\u53cd\u5411\u5f15\u7528<\/h4>\n

（1）\u6355\u83b7\u7ec4：<\/h5>\n

\u6bcf\u4e2a\u5206\u7ec4\u5c31\u662f\u4e00\u4e2a\u6355\u83b7\u7ec4，\u4ece\u5de6\u5230\u53f3，\u4ece 1 \u5f00\u59cb\u4e3a\u6bcf\u4e2a\u6355\u83b7\u7ec4\u7f16\u53f7\u3002\u4f8b\u5982\u5728(a(bc))\u4e2d，\u6709\u4e24\u4e2a\u6355\u83b7\u7ec4，(a(bc))\u662f\u7b2c 1 \u4e2a\u6355\u83b7\u7ec4，(bc)\u662f\u7b2c 2 \u4e2a\u6355\u83b7\u7ec4\u3002<\/p>\n

（2）\u53cd\u5411\u5f15\u7528：<\/h5>\n

\u4f7f\u7528\\\\n（n \u4e3a\u6355\u83b7\u7ec4\u7f16\u53f7）\u6765\u5f15\u7528\u4e4b\u524d\u6355\u83b7\u7ec4\u5339\u914d\u5230\u7684\u5185\u5bb9\u3002\u4f8b\u5982，\u6b63\u5219\u8868\u8fbe\u5f0f(ab)\\\\1，\u53ef\u4ee5\u5339\u914dabab，\u56e0\u4e3a\\\\1\u5f15\u7528\u4e86\u7b2c\u4e00\u4e2a\u6355\u83b7\u7ec4(ab)\u5339\u914d\u5230\u7684\u5185\u5bb9\u3002\u4f8b\u9898：\u5224\u65ad\u5b57\u7b26\u4e32"xyxy"\u80fd\u5426\u88ab(xy)\\\\1\u5339\u914d，\u7ed3\u679c\u662f\u53ef\u4ee5\u5339\u914d；\u5224\u65ad"xyyx"\u80fd\u5426\u88ab\u5339\u914d，\u7ed3\u679c\u662f\u4e0d\u80fd\u5339\u914d\u3002<\/p>\n

3.3 \u975e\u6355\u83b7\u7ec4<\/h4>\n

（1）\u975e\u6355\u83b7\u7ec4\u5b9a\u4e49：<\/h5>\n

\u4f7f\u7528(?:)\u8868\u793a\u975e\u6355\u83b7\u7ec4，\u5b83\u53ea\u8d77\u5230\u5206\u7ec4\u7684\u4f5c\u7528，\u4e0d\u4f1a\u6355\u83b7\u5339\u914d\u7684\u5185\u5bb9，\u4e5f\u4e0d\u4f1a\u5206\u914d\u7ec4\u53f7\u3002\u4f8b\u5982(?:ab)+，\u4e0e(ab)+\u7c7b\u4f3c，\u4f46(?:ab)+\u4e0d\u4f1a\u4ea7\u751f\u6355\u83b7\u7ec4\u3002<\/p>\n

（2）\u7528\u9014：<\/h5>\n

\u5f53\u53ea\u9700\u8981\u5206\u7ec4\u6539\u53d8\u4f18\u5148\u7ea7，\u800c\u4e0d\u9700\u8981\u6355\u83b7\u5185\u5bb9\u65f6\u4f7f\u7528\u975e\u6355\u83b7\u7ec4，\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387，\u51cf\u5c11\u8d44\u6e90\u5360\u7528\u3002\u4f8b\u5982，\u5bf9\u4e8e\u6b63\u5219\u8868\u8fbe\u5f0f(?:a|b)c，\u5b83\u5339\u914dac\u6216bc，\u4f46\u4e0d\u4f1a\u6355\u83b7a\u6216b\u3002\u4f8b\u9898：\u5728\u5b57\u7b26\u4e32"ac"\u3001"bc"\u3001"abc"\u4e2d，(?:a|b)c\u53ef\u4ee5\u5339\u914d"ac"\u548c"bc"，\u800c(a|b)c\u867d\u7136\u4e5f\u80fd\u5339\u914d"ac"\u548c"bc"，\u4f46\u4f1a\u4ea7\u751f\u6355\u83b7\u7ec4，\u5728\u4e00\u4e9b\u573a\u666f\u4e0b\u82e5\u4e0d\u9700\u8981\u6355\u83b7\u7ec4，\u4f7f\u7528(?:a|b)c\u66f4\u5408\u9002\u3002<\/p>\n

\n

\u56db\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u5728Java\u4e2d\u7684\u5e94\u7528<\/h3>\n

4.1\u4e3b\u8981\u7c7b\u4e0e\u65b9\u6cd5：<\/h4>\n

（1）Pattern\u7c7b：\u8868\u793a\u7f16\u8bd1\u540e\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u677f，\u901a\u8fc7Pattern.compile(String regex)\u65b9\u6cd5\u7f16\u8bd1\u6b63\u5219\u8868\u8fbe\u5f0f，\u5f97\u5230Pattern\u5bf9\u8c61\u3002<\/p>\n

（2）Matcher\u7c7b：\u7528\u4e8e\u6267\u884c\u5339\u914d\u64cd\u4f5c，\u901a\u8fc7Pattern.matcher(CharSequence input)\u65b9\u6cd5\u521b\u5efaMatcher\u5bf9\u8c61，\u5173\u8054\u8f93\u5165\u5b57\u7b26\u4e32\u3002<\/p>\n

4.2Matcher\u7c7b\u7684\u5e38\u7528\u65b9\u6cd5：<\/h4>\n
    \n
  • boolean find()：\u67e5\u627e\u8f93\u5165\u5b57\u7b26\u4e32\u4e2d\u662f\u5426\u6709\u5339\u914d\u7684\u5b50\u4e32，\u53ef\u591a\u6b21\u8c03\u7528，\u6bcf\u6b21\u627e\u4e0b\u4e00\u4e2a\u5339\u914d\u3002<\/li>\n
  • boolean matches()：\u5224\u65ad\u6574\u4e2a\u8f93\u5165\u5b57\u7b26\u4e32\u662f\u5426\u5b8c\u5168\u5339\u914d\u6b63\u5219\u89c4\u5219\u3002<\/li>\n
  • String group()：\u8fd4\u56de\u5f53\u524d\u5339\u914d\u5230\u7684\u6574\u4e2a\u5b50\u4e32\u3002<\/li>\n
  • String group(int n)：\u8fd4\u56de\u7b2c n \u4e2a\u6355\u83b7\u7ec4\u5339\u914d\u5230\u7684\u5185\u5bb9，n = 0 \u8868\u793a\u6574\u4e2a\u5339\u914d\u3002<\/li>\n
  • int start()：\u8fd4\u56de\u5f53\u524d\u5339\u914d\u5b50\u4e32\u7684\u8d77\u59cb\u4e0b\u6807\u3002\u4f8b\u5982int startIndex = matcher.start();\u3002<\/li>\n
  • int end()：\u8fd4\u56de\u5f53\u524d\u5339\u914d\u5b50\u4e32\u7684\u7ed3\u675f\u4e0b\u6807（exclusive，\u5373\u5b9e\u9645\u7ed3\u675f\u4f4d\u7f6e + 1）\u3002<\/li>\n
  • String replaceAll(String replacement)：\u5c06\u6240\u6709\u5339\u914d\u7684\u5b50\u4e32\u66ff\u6362\u4e3a\u6307\u5b9a\u5b57\u7b26\u4e32\u3002<\/li>\n
  • String replaceFirst(String replacement)：\u53ea\u66ff\u6362\u7b2c\u4e00\u4e2a\u5339\u914d\u7684\u5b50\u4e32\u3002<\/li>\n<\/ul>\n

    \u4e94\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u4e60\u9898（\u6301\u7eed\u66f4\u65b0）<\/h3>\n

    1.\u6570\u5b66\u8868\u8fbe\u5f0f\u89e3\u6790\u5668<\/h4>\n

    \u9898\u76ee：<\/h5>\n

    \u7ed9\u51fa\u5982\u4e0b\u8868\u8fbe\u5f0f：x#y = 2*x+3*y+4\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0x$y = 3*x+y+2<\/p>\n

    \u516c\u5f0f\u4e2d，$\u7684\u4f18\u5148\u7ea7\u9ad8\u4e8e#，\u76f8\u540c\u7684\u8fd0\u7b97\u7b26，\u6309\u4ece\u5de6\u5230\u53f3\u7684\u987a\u5e8f\u8ba1\u7b97\u3002\u7ed9\u5b9a\u8868\u8fbe\u5f0f\u8bf7\u8ba1\u7b97\u51fa\u7ed3\u679c<\/p>\n

    \u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528\u601d\u8def：<\/h5>\n
      \n
    • \u76ee\u7684：\u89e3\u6790\u6570\u5b66\u8868\u8fbe\u5f0f，\u5148\u5904\u7406$\u8fd0\u7b97，\u518d\u5904\u7406#\u8fd0\u7b97<\/li>\n<\/ul>\n
        \n
      • \u6838\u5fc3\u601d\u60f3：\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7279\u5b9a\u6a21\u5f0f，\u63d0\u53d6\u6570\u5b57\u8fdb\u884c\u8ba1\u7b97，\u7136\u540e\u66ff\u6362\u539f\u5b57\u7b26\u4e32\n

        \/\/ \u5bfc\u5165\u6b63\u5219\u8868\u8fbe\u5f0f\u5305
        \nimport java.util.regex.Matcher;
        \nimport java.util.regex.Pattern;<\/p>\n

        \/\/ \u7f16\u8bd1\u6b63\u5219\u8868\u8fbe\u5f0f\u6a21\u5f0f
        \nPattern pattern = Pattern.compile("(\\\\\\\\d+)\\\\\\\\$(\\\\\\\\d+)");<\/p>\n

        \/\/ \u521b\u5efa\u5339\u914d\u5668\u5e76\u5faa\u73af\u67e5\u627e
        \nwhile (true) {
        \n Matcher matcher = pattern.matcher(str);
        \n if (!matcher.find()) break;<\/p>\n

        \/\/ \u63d0\u53d6\u5339\u914d\u7684\u5185\u5bb9
        \n String subStr = matcher.group(0); \/\/ \u5b8c\u6574\u5339\u914d："4$5"
        \n long x = Long.parseLong(matcher.group(1)); \/\/ \u7b2c\u4e00\u4e2a\u6570\u5b57：4
        \n long y = Long.parseLong(matcher.group(2)); \/\/ \u7b2c\u4e8c\u4e2a\u6570\u5b57：5<\/p>\n

        \/\/ \u66ff\u6362\u8ba1\u7b97\u7ed3\u679c
        \n str = str.replaceFirst(subStr.replace("$", "\\\\\\\\$"), 3 * x + y + 2 + "");
        \n}\n<\/li>\n<\/ul>\n

        <\/h3>\n

        2.\u5b57\u7b26\u7c7b\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5904\u7406<\/h4>\n

        \u9898\u76ee：<\/h5>\n

        \u7ed9\u5b9a\u4e00\u6bb5\u201c\u5bc6\u6587\u201d\u5b57\u7b26\u4e32 s，\u5176\u4e2d\u5b57\u7b26\u90fd\u662f\u7ecf\u8fc7\u201c\u5bc6\u7801\u201d\u52a0\u5bc6\u7684，\u73b0\u9700\u8981\u5c06\u201c\u5bc6\u6587\u201d\u89e3\u5bc6\u5e76\u8f93\u51fa\u3002<\/p>\n

        \u6620\u5c04\u7684\u89c4\u5219（'a' ~ 'i'）\u5206\u522b\u7528（'1' ~ '9'）\u8868\u793a；（'j' ~ 'z'）\u5206\u522b\u7528（"10*"\u00a0~ "26*"）\u8868\u793a\u3002<\/p>\n

        \u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528\u601d\u8def：<\/h5>\n
          \n
        • \u76ee\u7684：\u89e3\u5bc6\u5bc6\u7801，\u6309\u7a7a\u683c\u548c\u661f\u53f7\u5206\u5272\u8f93\u5165\u5b57\u7b26\u4e32<\/li>\n<\/ul>\n
            \n
          • \u6838\u5fc3\u601d\u60f3：\u4f7f\u7528\u5b57\u7b26\u7c7b\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u591a\u79cd\u5206\u9694\u7b26\n

            \/\/ \u4f7f\u7528\u5b57\u7b26\u7c7b\u6b63\u5219\u8868\u8fbe\u5f0f\u5206\u5272
            \nString[] arrs = str.split("[ \\\\\\\\*]+");\n<\/li>\n<\/ul>\n

            3.\u63d0\u53d6\u5b57\u7b26\u4e32\u4e2d\u7684\u6700\u957f\u5408\u6cd5\u7b80\u5355\u6570\u5b66\u8868\u8fbe\u5f0f<\/h4>\n

            \u9898\u76ee：<\/h5>\n

            \u63d0\u53d6\u5b57\u7b26\u4e32\u4e2d\u7684\u957f\u5ea6\u6700\u957f\u5408\u6cd5\u7b80\u5355\u6570\u5b66\u8868\u8fbe\u5f0f，\u5e76\u8ba1\u7b97\u8868\u8fbe\u5f0f\u7684\u503c\u3002\u5982\u679c\u6ca1\u6709，\u5219\u8fd4\u56de 0 \u3002<\/p>\n

            \u7b80\u5355\u6570\u5b66\u8868\u8fbe\u5f0f\u53ea\u80fd\u5305\u542b\u4ee5\u4e0b\u5185\u5bb9：<\/p>\n

              \n
            • 0-9\u6570\u5b57，\u7b26\u53f7+-*<\/li>\n<\/ul>\n

              \u8bf4\u660e：<\/p>\n

            • \u5982\u679c\u6709\u591a\u4e2a\u957f\u5ea6\u4e00\u6837\u7684，\u8bf7\u8fd4\u56de\u7b2c\u4e00\u4e2a\u8868\u8fbe\u5f0f\u7684\u7ed3\u679c<\/li>\n
            • \u64cd\u4f5c\u7b26\u4e0d\u80fd\u8fde\u7eed\u51fa\u73b0，\u5982 +–+1 \u662f\u4e0d\u5408\u6cd5\u7684<\/li>\n
              \u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528\u601d\u8def：<\/h5>\n
                \n
              • \u76ee\u7684：\u00a0\u4ece\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u6700\u957f\u7684\u6709\u6548\u6570\u5b66\u8868\u8fbe\u5f0f\u5e76\u8ba1\u7b97\u7ed3\u679c<\/li>\n
              • \u6838\u5fc3\u601d\u60f3：\u00a0\u4f7f\u7528\u6355\u83b7\u7ec4\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u6570\u5b66\u8fd0\u7b97\u8868\u8fbe\u5f0f<\/li>\n<\/ul>\n

                \/\/ \u4f7f\u7528\u6355\u83b7\u7ec4\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u6570\u5b66\u8fd0\u7b97
                \nString regex01 = "([0-9]+)\\\\\\\\+([0-9]+)"; \/\/ \u52a0\u6cd5\u8868\u8fbe\u5f0f
                \nString regex02 = "([0-9]+)-([0-9]+)"; \/\/ \u51cf\u6cd5\u8868\u8fbe\u5f0f
                \nString regex03 = "([0-9]+)\\\\\\\\*([0-9]+)"; \/\/ \u4e58\u6cd5\u8868\u8fbe\u5f0f<\/p>\n

                \/\/ \u4e0b\u9762\u4ec5\u5bf9\u52a0\u6cd5\u8868\u8fbe\u5f0f\u8fdb\u884c\u6f14\u793a
                \nPattern pattern01 = Pattern.compile(regex01);
                \nMatcher matcher01 = pattern01.matcher(text);
                \nif (matcher01.find()) {
                \n String fullMatch01 = matcher01.group(0); \/\/ \u6574\u4e2a\u5f0f\u5b50
                \n int preExpression01 = Integer.parseInt(matcher01.group(1)); \/\/ \u7b2c\u4e00\u90e8\u5206
                \n int rearExpression01 = Integer.parseInt(matcher01.group(2)); \/\/ \u7b2c\u4e8c\u90e8\u5206
                \n}<\/p>\n

                4.\u590d\u6742\u7684\u5b57\u7b26\u4e32\u7ec4\u5408\u7684\u5904\u7406<\/h4>\n

                \u9898\u76ee：<\/h5>\n

                \u5bf9\u6570\u5b57，\u5b57\u7b26，\u6570\u5b57\u4e32，\u5b57\u7b26\u4e32，\u4ee5\u53ca\u6570\u5b57\u4e0e\u5b57\u7b26\u4e32\u7ec4\u5408\u8fdb\u884c\u5012\u5e8f\u6392\u5217\u3002<\/p>\n

              • \u5b57\u7b26\u8303\u56f4：\u7531 a \u5230 z， A \u5230 Z，<\/li>\n
              • \u6570\u5b57\u8303\u56f4：\u7531 0 \u5230 9<\/li>\n

                \u7b26\u53f7\u7684\u5b9a\u4e49：<\/p>\n

                  \n
                • \u201c-\u201d\u4f5c\u4e3a\u8fde\u63a5\u7b26\u4f7f\u7528\u65f6\u4f5c\u4e3a\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206，\u4f8b\u5982\u201c11-22\u201d\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u5b57\u7b26\u4e32\u5448\u73b0；<\/li>\n
                • \u8fde\u7eed\u51fa\u73b0 2 \u4e2a \u201c-\u201d \u53ca\u4ee5\u4e0a\u65f6\u89c6\u4e3a\u5b57\u7b26\u4e32\u95f4\u9694\u7b26，\u5982\u201ca-b\u201d\u4e2d\u7684\u201d\u2013\u201c\u89c6\u4e3a\u95f4\u9694\u7b26，\u662f 2 \u4e2a\u72ec\u7acb\u6574\u4f53\u5b57\u7b26\u4e32\u201da\u201d\u548c\u201db\u201d；<\/li>\n
                • \u9664\u4e86 1，2 \u91cc\u9762\u5b9a\u4e49\u7684\u5b57\u7b26\u4ee5\u5916\u5176\u4ed6\u7684\u6240\u6709\u5b57\u7b26，\u5168\u90fd\u4f5c\u4e3a\u95f4\u9694\u7b26\u5904\u7406，\u5012\u5e8f\u540e\u95f4\u9694\u7b26\u4f5c\u4e3a\u7a7a\u683c\u5904\u7406；<\/li>\n
                • \u8981\u6c42\u5012\u6392\u540e\u7684\u5355\u8bcd\u95f4\u9694\u7b26\u4ee5\u4e00\u4e2a\u7a7a\u683c\u8868\u793a；\u5982\u679c\u6709\u591a\u4e2a\u95f4\u9694\u7b26\u65f6，\u53ea\u5141\u8bb8\u51fa\u73b0\u4e00\u4e2a\u7a7a\u683c<\/li>\n<\/ul>\n
                  \u6b63\u5219\u8868\u8fbe\u5f0f\u4f7f\u7528\u601d\u8def：<\/h5>\n
                    \n
                  • \u76ee\u7684：\u00a0\u8bc6\u522b\u5408\u6cd5\u5355\u8bcd\u548c\u5206\u9694\u7b26，\u5012\u5e8f\u8f93\u51fa\u5355\u8bcd<\/li>\n
                  • \u6838\u5fc3\u601d\u60f3：\u00a0\u4f7f\u7528\u5206\u7ec4\u6b63\u5219\u8868\u8fbe\u5f0f\u533a\u5206\u5408\u6cd5\u5355\u8bcd\u548c\u5206\u9694\u7b26\n

                    \/\/ \u4f7f\u7528\u5206\u7ec4\u6b63\u5219\u8868\u8fbe\u5f0f\u533a\u5206\u5355\u8bcd\u548c\u5206\u9694\u7b26
                    \n\/\/ 1. \u5b9a\u4e49\u6b63\u5219：\u5339\u914d\u201c\u5408\u6cd5\u5355\u8bcd\u201d（\u542b\u5355\u4e2a'-'\u7684\u7ec4\u5408\u6216\u8005\u4e0d\u542b）\u548c\u201c\u5206\u9694\u7b26\u201d（\u8fde\u7eed–+\u6216\u975e\u6cd5\u5b57\u7b26）
                    \n\/\/ \u5206\u7ec41: \u5408\u6cd5\u5355\u8bcd（\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u5355\u4e2a'-'\u7ec4\u5408）
                    \n\/\/ \u5206\u7ec42: \u5206\u9694\u7b26（\u8fde\u7eed–+\u6216\u975e\u6cd5\u5b57\u7b26）
                    \nPattern pattern = Pattern.compile("([a-zA-Z0-9]+(?:-[a-zA-Z0-9]+)?)|([^a-zA-Z0-9-]|–+)");<\/p>\n

                    \/*
                    \n * \u5bf9\u4e0a\u8ff0\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u89e3\u91ca：
                    \n * \u6574\u4f53\u7ed3\u6784\u4e3a (\u5206\u7ec41)|(\u5206\u7ec42)；\u4e3a\u6216\u7ed3\u6784
                    \n * （1）\u5206\u7ec41：([a-zA-Z0-9]+(?:-[a-zA-Z0-9]+)?)\u7684\u8bf4\u660e：
                    \n * \u975e\u6355\u83b7\u5206\u7ec4（?: \u8868\u793a\u4e0d\u6355\u83b7\u8be5\u5206\u7ec4），\u6574\u4f53\u662f\u53ef\u9009\u7684（\u6700\u591a\u51fa\u73b01\u6b21）：
                    \n * -：\u5339\u914d\u5355\u4e2a\u77ed\u6a2a\u7ebf；
                    \n * [a-zA-Z0-9]+：\u77ed\u6a2a\u7ebf\u540e\u5fc5\u987b\u63a5\u81f3\u5c111\u4e2a\u5b57\u6bcd\/\u6570\u5b57（\u907f\u514d-\u51fa\u73b0\u5728\u7ed3\u5c3e）；
                    \n * ?：\u91cf\u8bcd，\u8868\u793a\u6574\u4e2a\u5206\u7ec4\u201c\u51fa\u73b00\u6b21\u62161\u6b21\u201d（\u5373\u6700\u591a\u53ea\u80fd\u6709\u4e00\u4e2a-）\u3002
                    \n * （2）([^a-zA-Z0-9-]|–+)
                    \n * [^…] \u8868\u793a \u201c\u975e\u5b57\u7b26\u96c6\u201d，\u5373\u5339\u914d\u9664\u4e86\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u5355\u4e2a-\u4e4b\u5916\u7684\u6240\u6709\u5b57\u7b26
                    \n * –+ \u6574\u4f53\u5339\u914d \u201c\u8fde\u7eed2\u4e2a\u53ca\u4ee5\u4e0a\u7684\u77ed\u6a2a\u7ebf\u201d（\u5982 –\u3001— \u7b49）
                    \n *\/<\/p>\n

                    Matcher matcher = pattern.matcher(str);
                    \nwhile (matcher.find()) {
                    \n String word = matcher.group(1); \/\/ \u5408\u6cd5\u5355\u8bcd
                    \n String separator = matcher.group(2); \/\/ \u5206\u9694\u7b26
                    \n}<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

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