\u5728\u6587\u672c\u5904\u7406\u3001\u4fe1\u606f\u68c0\u7d22\u3001\u81ea\u7136\u8bed\u8a00\u5904\u7406\u3001\u641c\u7d22\u5f15\u64ce\u7edf\u8ba1\u3001\u65e5\u5fd7\u5206\u6790\u7b49\u8bf8\u591a\u9886\u57df，\u7edf\u8ba1\u6307\u5b9a\u5b57\u7b26\u4e32\u4e2d\u201c\u5355\u8bcd\u201d\u7684\u4e2a\u6570\u662f\u4e00\u4e2a\u975e\u5e38\u57fa\u7840\u4f46\u53c8\u5bb9\u6613\u4ea7\u751f\u6b67\u4e49\u7684\u4efb\u52a1\u3002\u770b\u4f3c\u7b80\u5355\u7684\u201c\u5355\u8bcd\u8ba1\u6570\u201d（word count）\u5728\u4e0d\u540c\u8bed\u8a00\u3001\u4e0d\u540c\u573a\u666f（\u5982\u5e26\u6807\u70b9\u7684\u53e5\u5b50\u3001\u7f29\u5199\u3001\u8fde\u5b57\u7b26\u3001\u6487\u53f7\u3001\u4e2d\u6587\/\u65e5\u6587\u65e0\u7a7a\u683c\u8bed\u8a00\u3001\u6df7\u5408\u8bed\u8a00）\u4e0b\u4f1a\u6709\u4e0d\u540c\u7684\u5b9a\u4e49\u4e0e\u5b9e\u73b0\u7ec6\u8282\u3002\u6559\u5b66\u65f6，\u7edf\u8ba1\u5355\u8bcd\u4e2a\u6570\u975e\u5e38\u9002\u5408\u4f5c\u4e3a\u8bb2\u89e3\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u5206\u5272\u3001\u6709\u9650\u72b6\u6001\u673a（FSM）\u3001Java \u6587\u672c\u8fb9\u754c\u5de5\u5177（BreakIterator）\u3001\u4ee5\u53ca\u6027\u80fd\/\u5185\u5b58\u6743\u8861\u7684\u6848\u4f8b\u3002<\/p>\n
\u672c\u9879\u76ee\u9762\u5411\u8bfe\u5802\u4e0e\u5de5\u7a0b\u4e24\u65b9\u9762：\u65e2\u8981\u6709\u7b80\u5355\u76f4\u63a5\u3001\u4fbf\u4e8e\u7406\u89e3\u7684\u5b9e\u73b0，\u4e5f\u8981\u63d0\u4f9b\u66f4\u7a33\u5065\u3001\u56fd\u9645\u5316\u7684\u89e3\u51b3\u65b9\u6848，\u5e76\u8ba8\u8bba\u8fb9\u754c\u60c5\u51b5\u4e0e\u6027\u80fd\u8003\u91cf\u3002\u76ee\u6807\u662f\u8ba9\u5b66\u751f\u7406\u89e3\u201c\u4ec0\u4e48\u662f\u5355\u8bcd\u201d\u7684\u591a\u79cd\u5b9a\u4e49，\u4ee5\u53ca\u5982\u4f55\u5728 Java（\u517c\u5bb9 Java 8）\u4e2d\u5b9e\u73b0\u76f8\u5e94\u7b97\u6cd5\u3002<\/p>\n
\u63d0\u4f9b\u591a\u79cd Java \u5b9e\u73b0\u65b9\u5f0f\u7528\u4e8e\u7edf\u8ba1\u6307\u5b9a\u5b57\u7b26\u4e32\u4e2d\u7684\u5355\u8bcd\u6570，\u81f3\u5c11\u5305\u542b：<\/p>\n
\u7b80\u5355\u7684\u6309\u7a7a\u767d\u5206\u5272\u5b9e\u73b0（\u9002\u5408\u82f1\u6587\u7b80\u5355\u6587\u672c）；<\/p>\n<\/li>\n
\u57fa\u4e8e\u6b63\u5219\u7684\u5b9e\u73b0（\u53ef\u81ea\u5b9a\u4e49\u89c4\u5219，\u652f\u6301\u5e38\u89c1\u7f29\u5199\/\u6487\u53f7\/\u8fde\u5b57\u7b26）；<\/p>\n<\/li>\n
\u57fa\u4e8e BreakIterator \u7684\u533a\u57df\/\u8bed\u8a00\u611f\u77e5\u5b9e\u73b0（\u652f\u6301\u56fd\u9645\u5316）；<\/p>\n<\/li>\n
\u57fa\u4e8e\u6709\u9650\u72b6\u6001\u673a（FSM）\u7684\u9c81\u68d2\u5b9e\u73b0（\u9010\u5b57\u7b26\u5224\u65ad，\u4f4e\u4f9d\u8d56\u3001\u53ef\u6269\u5c55）；<\/p>\n<\/li>\n
\u6f14\u793a\u5bf9\u4e2d\u6587\/\u65e5\u6587\u7b49\u201c\u65e0\u7a7a\u683c\u201d\u8bed\u8a00\u7684\u8bf4\u660e\u4e0e\u5efa\u8bae（\u542b\u7b80\u5355\u5b57\u7b26\u8ba1\u6570\u7b56\u7565\u4e0e\u7b2c\u4e09\u65b9\u5206\u8bcd\u5e93\u5efa\u8bae）\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
\u6240\u6709\u4ee3\u7801\u9700\u517c\u5bb9 Java 8+，\u6ce8\u91ca\u8be6\u7ec6，\u4fbf\u4e8e\u8bfe\u5802\u8bb2\u89e3\u3002<\/p>\n<\/li>\n
\u6240\u6709\u5b9e\u73b0\u653e\u5728\u5355\u4e2a\u4ee3\u7801\u5757\u5185，\u4e0d\u540c\u201c\u6587\u4ef6\u201d\u7528\u6ce8\u91ca\u533a\u5206（\u4f8b\u5982 \/\/ File: …）\u3002<\/p>\n<\/li>\n
\u63d0\u4f9b\u4e3b\u65b9\u6cd5\u793a\u4f8b（\u542b\u591a\u79cd\u8f93\u5165\u6848\u4f8b），\u8f93\u51fa\u6bcf\u79cd\u65b9\u6cd5\u7684\u8ba1\u6570\u7ed3\u679c\u4ee5\u4fbf\u5bf9\u6bd4\u3002<\/p>\n<\/li>\n
\u5728\u6587\u6863\u4e2d\u8be6\u7ec6\u8bf4\u660e\u6bcf\u79cd\u5b9e\u73b0\u7684\u4f18\u7f3a\u70b9\u3001\u65f6\u95f4\/\u7a7a\u95f4\u590d\u6742\u5ea6\u3001\u9002\u7528\u573a\u666f\u4e0e\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n<\/li>\n
\u6587\u7ae0\u4e2d\u6587\u8be6\u5c3d\u3001\u9762\u5411\u6559\u5b66：\u89e3\u91ca\u4e3a\u4f55\u9009\u62e9\u6b64\u5b9e\u73b0\u3001\u5e38\u89c1\u9677\u9631\u4e0e\u63a8\u8350\u505a\u6cd5\u3002<\/p>\n<\/li>\n
\u5b57\u7b26\u5206\u7c7b：Character.isLetter\u3001Character.isLetterOrDigit\u3001Unicode \u7c7b\u522b \\\\p{L} \u7b49，\u7528\u4e8e\u5224\u65ad\u5b57\u7b26\u662f\u5426\u5c5e\u4e8e\u201c\u8bcd\u5185\u5b57\u7b26\u201d；<\/p>\n<\/li>\n
\u6b63\u5219\u8868\u8fbe\u5f0f：String.split() \u548c Pattern\/Matcher，\u5e38\u89c1\u6b63\u5219\u5982 \\\\b\u3001\\\\p{L}\u3001[A-Za-z0-9'-] \u7b49；<\/p>\n<\/li>\n
BreakIterator：java.text.BreakIterator.getWordInstance(Locale)，\u7528\u4e8e\u57fa\u4e8e\u8bed\u8a00\u7684\u8bcd\u8fb9\u754c\u68c0\u6d4b（\u6bd4\u7b80\u5355\u6b63\u5219\u66f4\u8d34\u5408\u672c\u5730\u5316\u89c4\u5219）；<\/p>\n<\/li>\n
Scanner：java.util.Scanner \u53ef\u4f5c\u4e3a\u5feb\u901f\u7684\u5206\u8bcd\u5de5\u5177，\u4f46\u9700\u8981\u8bbe\u7f6e\u5408\u9002\u7684\u5206\u9694\u7b26；<\/p>\n<\/li>\n
\u6709\u9650\u72b6\u6001\u673a（FSM）：\u6309\u5b57\u7b26\u9010\u6b65\u5224\u65ad\u72b6\u6001（IN_WORD \/ OUT_WORD），\u7cbe\u786e\u63a7\u5236\u4f55\u4e3a\u201c\u5355\u8bcd\u5f00\u59cb\/\u7ed3\u675f\u201d；<\/p>\n<\/li>\n
\u7b2c\u4e09\u65b9\u5206\u8bcd：\u5bf9\u4e8e\u4e2d\u6587\/\u65e5\u6587，\u9700\u4f7f\u7528\u5206\u8bcd\u5e93（\u5982jieba\u3001HanLP）\u6216 NLP \u5de5\u5177\u5305\u624d\u80fd\u505a\u5230\u771f\u6b63\u7684\u201c\u5355\u8bcd\/\u8bcd\u8bed\u201d\u5206\u5272；<\/p>\n<\/li>\n
\u6027\u80fd\/\u5185\u5b58：\u5b57\u7b26\u4e32\u957f\u5ea6\u6781\u5927\u65f6，\u907f\u514d\u521b\u5efa\u5927\u91cf\u4e2d\u95f4\u5b57\u7b26\u4e32（\u5982 split \u4f1a\u4ea7\u751f\u6570\u7ec4），\u5e94\u8003\u8651\u6d41\u5f0f\/\u9010\u5b57\u7b26\u5904\u7406\u6216\u4f7f\u7528 Scanner\/BreakIterator \u589e\u91cf\u5904\u7406\u3002<\/p>\n<\/li>\n<\/ul>\n
\u6211\u4eec\u4f9d\u6b21\u5b9e\u73b0\u4ee5\u4e0b\u65b9\u6cd5\u5e76\u5728 main \u4e2d\u6f14\u793a：<\/p>\n
countBySimpleSplit(String s)：trim() \u540e\u4f7f\u7528 s.split("\\\\\\\\s+") \u5f97\u5230 token \u6570，\u9002\u5408\u4ee5\u7a7a\u767d\u5206\u5272\u7684\u7b80\u5355\u573a\u666f（\u82f1\u6587\u77ed\u6587\u672c）\u3002\u4f18\u70b9：\u5b9e\u73b0\u6700\u7b80\u5355；\u7f3a\u70b9：\u4e0d\u80fd\u5904\u7406\u9644\u5e26\u6807\u70b9\u7684 token \u8f83\u51c6\u3002<\/p>\n<\/li>\n
countByRegex(String s)：\u4f7f\u7528\u6b63\u5219 \\\\b[\\\\p{L}\\\\p{Nd}]+(?:['-][\\\\p{L}\\\\p{Nd}]+)*\\\\b（\u652f\u6301\u5b57\u6bcd\/\u6570\u5b57，\u5141\u8bb8\u5185\u90e8\u8fde\u5b57\u7b26\u548c\u6487\u53f7），\u901a\u8fc7 Matcher \u9010\u4e2a\u5339\u914d\u5e76\u8ba1\u6570\u3002\u4f18\u70b9：\u53ef\u901a\u8fc7\u6b63\u5219\u81ea\u5b9a\u4e49\u8bc6\u522b\u89c4\u5219；\u7f3a\u70b9：\u590d\u6742\u6b63\u5219\u8f83\u96be\u8bfb\u61c2\u4e14\u5bf9\u7279\u6b8a\u60c5\u51b5\u6709\u9650\u3002<\/p>\n<\/li>\n
countByBreakIterator(String s, Locale locale)：\u4f7f\u7528 BreakIterator.getWordInstance(locale) \u904d\u5386\u5019\u9009\u8bcd\u8fb9\u754c，\u8ba1\u6570\u65f6\u53ea\u628a\u5305\u542b\u5b57\u6bcd\/\u6570\u5b57\u5b57\u7b26\u7684\u8fb9\u754c\u4f5c\u4e3a\u8bcd\u3002\u4f18\u70b9：\u56fd\u9645\u5316\u652f\u6301\u66f4\u597d；\u7f3a\u70b9：\u4e0e\u8bed\u8a00\u89c4\u5219\u4e00\u81f4\u6027\u4f9d\u8d56 Java \u7684\u5b9e\u73b0，\u67d0\u4e9b\u8bed\u8a00（\u4e2d\u6587）\u4ecd\u9700\u5206\u8bcd\u5e93\u3002<\/p>\n<\/li>\n
countByFSM(String s)：\u5b9e\u73b0\u57fa\u4e8e\u72b6\u6001\u673a\u7684\u9010\u5b57\u7b26\u626b\u63cf：\u5f53\u9047\u5230\u5b57\u6bcd\/\u6570\u5b57\u5219\u8fdb\u5165 IN_WORD \u72b6\u6001，\u9047\u5230\u975e\u8bcd\u5b57\u7b26\u5219\u4ece IN_WORD \u5207\u6362\u5230 OUT_WORD \u5e76\u8ba1\u6570\u3002\u4f18\u70b9：\u5185\u5b58\u53cb\u597d\u3001\u6027\u80fd\u53ef\u63a7\u3001\u5b9e\u73b0\u903b\u8f91\u6e05\u6670；\u7f3a\u70b9：\u9700\u5b9a\u4e49\u201c\u5b57\u6bcd\/\u6570\u5b57\u201d\u7684\u7cbe\u786e\u5224\u5b9a（Unicode \u8f83\u590d\u6742）\u3002<\/p>\n<\/li>\n
countChineseByChar(String s)：\u5bf9\u4e8e\u4e2d\u6587\u548c\u65e5\u6587\u7b49\u65e0\u7a7a\u683c\u8bed\u8a00，\u63d0\u4f9b\u4e00\u4e2a\u53ef\u9009\u7684\u201c\u628a\u6bcf\u4e2a\u6c49\u5b57\/\u6c49\u5b57\u5e8f\u5217\u89c6\u4e3a\u8bcd\u201d\u7684\u7b80\u6613\u7b56\u7565（\u975e\u771f\u6b63\u7684\u5206\u8bcd，\u4ec5\u6559\u5b66\u7528\u9014），\u5e76\u5efa\u8bae\u4f7f\u7528\u4e13\u4e1a\u5206\u8bcd\u5e93\u505a\u7cbe\u786e\u5206\u8bcd\u3002<\/p>\n<\/li>\n
countByScanner(String s)：\u6f14\u793a Scanner \u7684\u7b80\u5355\u7528\u6cd5（useDelimiter("\\\\\\\\s+")），\u4f46\u8981\u6ce8\u610f\u5176\u5206\u9694\u7b26\u4e0e token \u6e05\u6d17\u3002<\/p>\n<\/li>\n
\u4e3b\u65b9\u6cd5\u4f1a\u5bf9\u5e38\u89c1\u793a\u4f8b\u8fdb\u884c\u5bf9\u6bd4：\u5305\u542b\u7b80\u5355\u82f1\u6587\u53e5\u5b50（\u5e26\u6807\u70b9）\u3001\u5305\u542b\u7f29\u5199\u4e0e\u6487\u53f7（don't, O'Reilly）\u3001\u8fde\u5b57\u7b26（state-of-the-art）\u3001\u6df7\u5408\u4e2d\u82f1\u6587\u3001\u4ee5\u53ca\u4e2d\u6587\u53e5\u5b50，\u5c55\u793a\u4e0d\u540c\u65b9\u6cd5\u4e0b\u8ba1\u6570\u5dee\u5f02\u5e76\u8ba8\u8bba\u539f\u56e0\u3002<\/p>\n
\/\/ File: WordCountUtils.java
\n\/\/ \u8bf4\u660e：\u591a\u79cd\u5b9e\u73b0\u7edf\u8ba1\u5b57\u7b26\u4e32\u4e2d\u5355\u8bcd（word）\u4e2a\u6570\u7684\u5de5\u5177\u7c7b，\u517c\u5bb9 Java 8+\u3002
\n\/\/ \u65b9\u6cd5\u5305\u62ec：\u7b80\u5355 split\u3001\u6b63\u5219\u5339\u914d\u3001BreakIterator（\u56fd\u9645\u5316）\u3001FSM（\u72b6\u6001\u673a）\u3001Scanner \u793a\u4f8b\u3001\u4e2d\u6587\u7b80\u6613\u8ba1\u6570\u3002
\n\/\/ \u4ee3\u7801\u4ee5\u6559\u5b66\u4e3a\u4e3b，\u6ce8\u91ca\u8be6\u5c3d，\u4fbf\u4e8e\u8bfe\u5802\u8bb2\u89e3\u3002<\/p>\n
import java.text.BreakIterator;
\nimport java.util.Locale;
\nimport java.util.Scanner;
\nimport java.util.regex.Matcher;
\nimport java.util.regex.Pattern;<\/p>\n
public class WordCountUtils {<\/p>\n
\/**
\n * \u65b9\u6cd51：\u7b80\u5355\u6309\u7a7a\u767d\u7b26\u5206\u5272（\u6700\u76f4\u89c2）
\n * \u8bf4\u660e：
\n * – \u4f7f\u7528 trim() \u53bb\u6389\u524d\u540e\u7a7a\u767d，\u4f7f\u7528 \\\\s+ \u4f5c\u4e3a\u5206\u9694\u7b26\u3002
\n * – \u8fd4\u56de split \u540e\u7684 token \u6570（\u5ffd\u7565\u7a7a\u4e32）\u3002
\n * – \u9002\u7528\u4e8e\u4ee5\u7a7a\u683c\u5206\u9694\u7684\u82f1\u6587\/\u62c9\u4e01\u5b57\u6bcd\u6587\u672c，\u4f46\u4e0d\u80fd\u5904\u7406\u5e26\u6807\u70b9\u7684\u590d\u6742\u60c5\u51b5\u3002
\n * \u65f6\u95f4\u590d\u6742\u5ea6：O(n)，\u7a7a\u95f4\u590d\u6742\u5ea6：O(k)（\u751f\u6210 token \u6570\u7ec4）
\n *\/
\n public static int countBySimpleSplit(String s) {
\n if (s == null) return 0;
\n String trimmed = s.trim();
\n if (trimmed.isEmpty()) return 0;
\n \/\/ \u6309\u4efb\u610f\u7a7a\u767d\u5b57\u7b26\u5e8f\u5217\u5206\u5272（\u7a7a\u683c\u3001\u5236\u8868\u7b26\u3001\u6362\u884c\u7b49）
\n String[] tokens = trimmed.split("\\\\\\\\s+");
\n return tokens.length;
\n }<\/p>\n
\/**
\n * \u65b9\u6cd52：\u57fa\u4e8e\u6b63\u5219\u7684\u66f4\u7cbe\u7ec6\u5339\u914d（\u652f\u6301\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u6487\u53f7\u3001\u8fde\u5b57\u7b26）
\n * \u8bf4\u660e：
\n * – \u4f7f\u7528 Pattern\/Matcher \u9010\u4e2a\u5339\u914d\u201c\u5355\u8bcd\u201d\u7684\u8fb9\u754c，\u800c\u4e0d\u662f\u5168\u5c40 split\u3002
\n * – \u4e0b\u9762\u7684\u6b63\u5219\u793a\u4f8b：\\\\b[\\\\p{L}\\\\p{Nd}]+(?:['-][\\\\p{L}\\\\p{Nd}]+)*\\\\b
\n * \u89e3\u91ca：
\n * \\\\p{L} \u4ee3\u8868 Unicode \u5b57\u6bcd\u7c7b\u522b
\n * \\\\p{Nd} \u4ee3\u8868 Unicode \u5341\u8fdb\u5236\u6570\u5b57
\n * (?:['-][…]+)* \u5141\u8bb8\u5185\u90e8\u51fa\u73b0\u8fde\u5b57\u7b26\u6216\u6487\u53f7（\u4f8b\u5982 don't, state-of-the-art）
\n * – \u8be5\u89c4\u5219\u53ef\u6839\u636e\u9700\u8981\u8c03\u6574（\u4f8b\u5982\u5141\u8bb8\u4e0b\u5212\u7ebf\u3001\u767e\u5206\u53f7\u7b49）\u3002
\n * \u65f6\u95f4\u590d\u6742\u5ea6：O(n)（\u6b63\u5219\u5339\u914d），\u7a7a\u95f4\u590d\u6742\u5ea6：O(1)（\u4e0d\u4fdd\u5b58\u6240\u6709 token）
\n *\/
\n public static int countByRegex(String s) {
\n if (s == null) return 0;
\n \/\/ \u4ee5 Unicode \u7c7b\u522b\u4e3a\u57fa\u7840\u7684\u6b63\u5219，\u652f\u6301\u591a\u8bed\u8a00\u5b57\u6bcd\u548c\u6570\u5b57
\n String regex = "\\\\\\\\b[\\\\\\\\p{L}\\\\\\\\p{Nd}]+(?:['-][\\\\\\\\p{L}\\\\\\\\p{Nd}]+)*\\\\\\\\b";
\n Pattern p = Pattern.compile(regex);
\n Matcher m = p.matcher(s);
\n int count = 0;
\n while (m.find()) {
\n count++;
\n }
\n return count;
\n }<\/p>\n
\/**
\n * \u65b9\u6cd53：\u4f7f\u7528 BreakIterator（\u57fa\u4e8e Locale \u7684\u8bcd\u8fb9\u754c\u68c0\u6d4b）
\n * \u8bf4\u660e：
\n * – BreakIterator.getWordInstance(locale) \u63d0\u4f9b\u8bed\u8a00\u654f\u611f\u7684\u201c\u5355\u8bcd\u201d\u8fb9\u754c\u68c0\u6d4b\u3002
\n * – \u8fed\u4ee3\u6240\u6709\u8fb9\u754c\u533a\u95f4 [start, end)，\u5e76\u68c0\u67e5\u8be5\u533a\u95f4\u5185\u662f\u5426\u5305\u542b\u5b57\u6bcd\u6216\u6570\u5b57\u5b57\u7b26（\u6392\u9664\u7a7a\u683c\u548c\u6807\u70b9）\u3002
\n * – \u5bf9\u4e8e\u82f1\u6587\u7b49\u6309\u7a7a\u683c\u5206\u8bcd\u7684\u8bed\u8a00，\u6548\u679c\u901a\u5e38\u5f88\u597d；\u5bf9\u4e8e\u4e2d\u6587\u9700\u8981\u66f4\u590d\u6742\u7684\u5206\u8bcd\u5668\u3002
\n * \u65f6\u95f4\u590d\u6742\u5ea6：O(n)，\u7a7a\u95f4\u590d\u6742\u5ea6：O(1)
\n *\/
\n public static int countByBreakIterator(String s, Locale locale) {
\n if (s == null || s.isEmpty()) return 0;
\n BreakIterator boundary = BreakIterator.getWordInstance(locale);
\n boundary.setText(s);
\n int start = boundary.first();
\n int count = 0;
\n for (int end = boundary.next(); end != BreakIterator.DONE; start = end, end = boundary.next()) {
\n \/\/ \u5b50\u4e32 [start, end)
\n String word = s.substring(start, end);
\n \/\/ \u53ea\u628a\u542b\u6709\u5b57\u6bcd\u6216\u6570\u5b57\u7684\u7247\u6bb5\u89c6\u4e3a\u5355\u8bcd（\u8fc7\u6ee4\u6807\u70b9\u548c\u7a7a\u767d）
\n boolean hasLetterOrDigit = false;
\n for (int i = 0; i < word.length(); i++) {
\n char ch = word.charAt(i);
\n if (Character.isLetterOrDigit(ch)) {
\n hasLetterOrDigit = true;
\n break;
\n }
\n }
\n if (hasLetterOrDigit) count++;
\n }
\n return count;
\n }<\/p>\n
\/**
\n * \u65b9\u6cd54：\u6709\u9650\u72b6\u6001\u673a（FSM）\u9010\u5b57\u7b26\u626b\u63cf（\u9c81\u68d2\u3001\u5185\u5b58\u53cb\u597d）
\n * \u8bf4\u660e：
\n * – \u5b9a\u4e49\u4e24\u4e2a\u72b6\u6001：IN_WORD（\u5f53\u524d\u5728\u5355\u8bcd\u5185\u90e8），OUT_WORD（\u5f53\u524d\u4e0d\u5728\u5355\u8bcd\u5185\u90e8）\u3002
\n * – \u904d\u5386\u5b57\u7b26\u4e32\u7684\u6bcf\u4e2a\u5b57\u7b26：\u5982\u679c\u5b57\u7b26\u88ab\u5224\u5b9a\u4e3a\u201c\u8bcd\u5b57\u7b26\u201d（\u9ed8\u8ba4\u4f7f\u7528 isLetterOrDigit），\u5219\u8fdb\u5165\/\u4fdd\u6301 IN_WORD；
\n * \u5426\u5219（\u7a7a\u767d\u3001\u6807\u70b9），\u82e5\u4e4b\u524d\u5904\u4e8e IN_WORD，\u5219\u8ba1\u6570\u5e76\u5207\u6362\u5230 OUT_WORD\u3002
\n * – \u7ed3\u675f\u65f6\u82e5\u5904\u4e8e IN_WORD \u5219\u518d\u8ba1\u6570\u4e00\u6b21\u3002
\n * – \u4f18\u70b9：\u4e0d\u4ea7\u751f\u989d\u5916\u7684\u4e2d\u95f4\u5b57\u7b26\u4e32\u6216\u6570\u7ec4，\u9002\u5408\u957f\u6587\u672c\u6d41\u5f0f\u5904\u7406\u3002
\n * – \u53ef\u901a\u8fc7\u66ff\u6362 isLetterOrDigit \u5224\u5b9a\u903b\u8f91\u6765\u81ea\u5b9a\u4e49\u4f55\u4e3a\u201c\u8bcd\u5b57\u7b26\u201d\u3002
\n *\/
\n public static int countByFSM(String s) {
\n if (s == null || s.isEmpty()) return 0;
\n final int OUT_WORD = 0;
\n final int IN_WORD = 1;
\n int state = OUT_WORD;
\n int count = 0;
\n for (int i = 0; i < s.length(); i++) {
\n char ch = s.charAt(i);
\n boolean isWordChar = Character.isLetterOrDigit(ch); \/\/ \u53ef\u66ff\u6362\u4e3a\u66f4\u590d\u6742\u5224\u65ad
\n if (isWordChar) {
\n if (state == OUT_WORD) {
\n state = IN_WORD; \/\/ \u5355\u8bcd\u5f00\u59cb
\n }
\n \/\/ \u82e5\u5df2\u7ecf\u5728 IN_WORD，\u7ee7\u7eed
\n } else {
\n if (state == IN_WORD) {
\n count++; \/\/ \u5355\u8bcd\u7ed3\u675f
\n state = OUT_WORD;
\n }
\n }
\n }
\n if (state == IN_WORD) count++; \/\/ \u5b57\u7b26\u4e32\u672b\u5c3e\u7684\u5355\u8bcd
\n return count;
\n }<\/p>\n
\/**
\n * \u65b9\u6cd55：Scanner \u6f14\u793a（\u7b80\u6377\u4f46\u9700\u6ce8\u610f\u5206\u9694\u7b26\u548c\u6e05\u6d17）
\n * \u8bf4\u660e：
\n * – Scanner \u53ef\u4ee5\u901a\u8fc7 useDelimiter \u8bbe\u7f6e\u5206\u9694\u7b26，\u8fd9\u91cc\u793a\u4f8b\u4f7f\u7528\u9ed8\u8ba4\u7684\u5206\u9694\u7b26（\u7a7a\u767d）\u3002
\n * – \u5bf9\u4e8e\u542b\u6807\u70b9\u7684 token，\u9700\u8fdb\u4e00\u6b65\u6e05\u6d17（\u4f8b\u5982\u53bb\u6389\u4e24\u7aef\u6807\u70b9）\u4ee5\u5f97\u5230\u66f4\u7cbe\u786e\u7684\u5355\u8bcd\u3002
\n * – Scanner \u5728\u6784\u9020\u5927\u91cf\u5bf9\u8c61\u6216\u9ad8\u5e76\u53d1\u573a\u666f\u53ef\u80fd\u4e0d\u53ca\u7b80\u5355 FSM \u6548\u7387\u9ad8\u3002
\n *\/
\n public static int countByScanner(String s) {
\n if (s == null) return 0;
\n int count = 0;
\n Scanner scanner = new Scanner(s);
\n \/\/ \u9ed8\u8ba4\u5206\u9694\u7b26\u4e3a\u7a7a\u767d，\u6a21\u62df\u7b80\u5355\u7684\u7a7a\u767d\u5206\u5272\u8ba1\u6570
\n while (scanner.hasNext()) {
\n String token = scanner.next();
\n \/\/ \u53ef\u505a\u8fdb\u4e00\u6b65\u6e05\u6d17：\u53bb\u6389\u4e24\u7aef\u6807\u70b9
\n token = token.replaceAll("^[\\\\\\\\p{Punct}]+|[\\\\\\\\p{Punct}]+$", "");
\n if (!token.isEmpty()) count++;
\n }
\n scanner.close();
\n return count;
\n }<\/p>\n
\/**
\n * \u65b9\u6cd56：\u5bf9\u4e2d\u6587\/\u65e5\u6587\u7b49\u65e0\u7a7a\u683c\u8bed\u8a00\u7684\u7b80\u6613\u7b56\u7565（\u6559\u5b66\u6f14\u793a）
\n * \u8bf4\u660e：
\n * – \u5bf9\u4e8e\u4e2d\u6587\/\u65e5\u6587，\u5355\u7eaf\u6309\u7a7a\u683c\u6216 \\\\p{L} \u5e76\u4e0d\u8db3\u4ee5\u5f97\u5230\u8bcd\u7ea7\u5206\u5272\u3002\u6700\u51c6\u786e\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u5206\u8bcd\u5668（\u5982 jieba, HanLP \u7b49）\u3002
\n * – \u8fd9\u91cc\u63d0\u4f9b\u4e00\u4e2a\u975e\u5e38\u7b80\u5316\u7684\u7b56\u7565：\u628a\u8fde\u7eed\u7684\u6c49\u5b57\u5e8f\u5217\u89c6\u4e3a\u4e00\u4e2a\u201c\u8bcd\u201d，\u4f7f\u7528 Unicode Block \u5224\u65ad\u662f\u5426\u4e3a CJK\u3002
\n * – \u8be5\u65b9\u6cd5\u4ec5\u4e3a\u6559\u5b66\u7528\u9014，\u4e0d\u80fd\u66ff\u4ee3\u771f\u6b63\u7684\u5206\u8bcd\u5668\u3002
\n *\/
\n public static int countChineseByChar(String s) {
\n if (s == null || s.isEmpty()) return 0;
\n int count = 0;
\n boolean inHan = false;
\n for (int i = 0; i < s.length(); i++) {
\n char ch = s.charAt(i);
\n boolean isHan = Character.UnicodeBlock.of(ch) == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
\n || Character.UnicodeBlock.of(ch) == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
\n || Character.UnicodeBlock.of(ch) == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
\n || Character.UnicodeBlock.of(ch) == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION;
\n if (isHan) {
\n if (!inHan) {
\n inHan = true;
\n count++;
\n }
\n } else {
\n inHan = false;
\n }
\n }
\n return count;
\n }
\n}<\/p>\n
\/\/ File: Main.java
\n\/\/ \u6f14\u793a\u5404\u79cd\u65b9\u6cd5\u7684\u6548\u679c\u4e0e\u5bf9\u6bd4，\u542b\u591a\u79cd\u6d4b\u8bd5\u7528\u4f8b，\u9002\u5408\u8bfe\u5802\u8fd0\u884c\u548c\u73b0\u573a\u8bb2\u89e3\u3002<\/p>\n
import java.util.Locale;
\nimport java.nio.charset.StandardCharsets;<\/p>\n
public class Main {
\n public static void main(String[] args) {
\n String s1 = "Hello, world! This is a test.";
\n String s2 = "Don't stop-believing: it's state-of-the-art.";
\n String s3 = "O'Reilly's book on C++: 100% practical.";
\n String s4 = "\u6df7\u5408 English \u548c \u4e2d\u6587 \u7684\u53e5\u5b50\u3002\u6d4b\u8bd5\u5206\u8bcd\u3002";
\n String s5 = "\u8fd9\u662f\u4e2d\u6587\u6ca1\u6709\u7a7a\u683c\u7684\u53e5\u5b50，\u7528\u4e8e\u6f14\u793a\u7b80\u6613\u6c49\u5b57\u7edf\u8ba1\u3002";<\/p>\n
System.out.println("\u793a\u4f8b\u6587\u672c\u53ca\u5404\u79cd\u65b9\u6cd5\u7684\u8ba1\u6570\u7ed3\u679c：\\\\n");<\/p>\n
demo(s1);
\n demo(s2);
\n demo(s3);
\n demo(s4);
\n demo(s5);
\n }<\/p>\n
private static void demo(String s) {
\n System.out.println("\u539f\u6587: " + s);
\n System.out.println("1) SimpleSplit: " + WordCountUtils.countBySimpleSplit(s));
\n System.out.println("2) Regex: " + WordCountUtils.countByRegex(s));
\n System.out.println("3) BreakIterator (Locale.ENGLISH): " + WordCountUtils.countByBreakIterator(s, Locale.ENGLISH));
\n System.out.println("4) FSM: " + WordCountUtils.countByFSM(s));
\n System.out.println("5) Scanner: " + WordCountUtils.countByScanner(s));
\n System.out.println("6) Chinese simple (\u6c49\u5b57\u5e8f\u5217\u8ba1\u6570): " + WordCountUtils.countChineseByChar(s));
\n System.out.println("—-\\\\n");
\n }
\n}<\/p>\n
（\u4e0b\u5217\u8bf4\u660e\u4ec5\u63cf\u8ff0\u6bcf\u4e2a\u65b9\u6cd5\u7684\u529f\u80fd\u4e0e\u9002\u7528\u573a\u666f，\u4e0d\u91cd\u590d\u4ee3\u7801\u5b9e\u73b0\u7ec6\u8282\u3002）<\/p>\n
countBySimpleSplit(String s)：\u5bf9\u5b57\u7b26\u4e32 s \u505a trim() \u540e\u4ee5\u7a7a\u767d\u5b57\u7b26\u4e32（\\\\\\\\s+）\u5206\u5272\u5e76\u8fd4\u56de token \u6570\u3002\u8fd9\u662f\u6700\u76f4\u89c2\u7684\u5b9e\u73b0，\u9002\u5408\u7eaf\u82f1\u6587\u4e14\u4ee5\u7a7a\u683c\u5206\u9694\u7684\u6587\u672c，\u4f46\u5bf9\u6807\u70b9\u3001\u6487\u53f7\u3001\u8fde\u5b57\u7b26\u6ca1\u6709\u7279\u6b8a\u5904\u7406\u3002<\/p>\n<\/li>\n
countByRegex(String s)：\u4f7f\u7528\u57fa\u4e8e Unicode \u7c7b\u522b\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u5355\u8bcd（\u652f\u6301\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u5185\u90e8\u6487\u53f7\u6216\u8fde\u5b57\u7b26），\u7528 Matcher.find() \u9010\u4e2a\u8ba1\u6570\u3002\u9002\u7528\u4e8e\u9700\u8981\u7075\u6d3b\u63a7\u5236\u201c\u4ec0\u4e48\u7b97\u4f5c\u5355\u8bcd\u201d\u7684\u573a\u666f（\u4f8b\u5982\u5141\u8bb8 don't\u3001state-of-the-art）\u7684\u82f1\u6587\u6587\u672c\u3002<\/p>\n<\/li>\n
countByBreakIterator(String s, Locale locale)：\u5229\u7528 BreakIterator.getWordInstance(locale) \u83b7\u53d6\u8bed\u8a00\u654f\u611f\u7684\u8bcd\u8fb9\u754c，\u904d\u5386\u8fb9\u754c\u5e76\u7b5b\u9009\u542b\u5b57\u6bcd\u6216\u6570\u5b57\u7684\u533a\u95f4\u4f5c\u4e3a\u5355\u8bcd\u3002\u9002\u5408\u56fd\u9645\u5316\u6587\u672c，\u4f18\u70b9\u662f\u51cf\u5c11\u5bf9\u7b80\u5355\u6b63\u5219\u7684\u624b\u5199\u5224\u65ad，\u4f9d\u8d56 JVM \u63d0\u4f9b\u7684\u8bcd\u8fb9\u754c\u89c4\u5219\u3002<\/p>\n<\/li>\n
countByFSM(String s)：\u4f7f\u7528\u6709\u9650\u72b6\u6001\u673a（IN_WORD \/ OUT_WORD）\u5bf9\u5b57\u7b26\u4e32\u9010\u5b57\u7b26\u626b\u63cf，\u901a\u8fc7 Character.isLetterOrDigit \u5224\u65ad\u8bcd\u5b57\u7b26，\u4ece\u800c\u4ee5\u6d41\u5f0f\u3001\u5185\u5b58\u53cb\u597d\u7684\u65b9\u5f0f\u7edf\u8ba1\u5355\u8bcd\u6570\u3002\u9002\u5408\u957f\u6587\u672c\u6216\u6d41\u5f0f\u5904\u7406\u573a\u666f，\u4fbf\u4e8e\u5b9a\u5236\u201c\u8bcd\u5b57\u7b26\u201d\u5224\u5b9a\u7b56\u7565\u3002<\/p>\n<\/li>\n
countByScanner(String s)：\u6f14\u793a Scanner \u7684\u57fa\u672c\u4f7f\u7528（\u9ed8\u8ba4\u6309\u7a7a\u767d\u5206\u9694），\u5e76\u6f14\u793a\u5bf9 token \u505a\u4e24\u7aef\u6807\u70b9\u6e05\u6d17\u540e\u8ba1\u6570\u3002\u9002\u5408\u5feb\u901f\u5b9e\u73b0\u548c\u7b80\u5355\u811a\u672c，\u4f46\u5728\u6027\u80fd\/\u7075\u6d3b\u6027\u4e0a\u4e0d\u5982 FSM \u6216 BreakIterator\u3002<\/p>\n<\/li>\n
countChineseByChar(String s)：\u5bf9\u4e2d\u6587\/\u65e5\u6587\u7b49\u65e0\u7a7a\u683c\u8bed\u8a00\u63d0\u4f9b\u7684\u6781\u7b80\u7b56\u7565：\u628a\u8fde\u7eed\u7684\u6c49\u5b57\u5e8f\u5217\u89c6\u4e3a\u4e00\u4e2a\u8bcd（\u901a\u8fc7 UnicodeBlock \u5224\u65ad CJK \u5b57\u7b26），\u4ec5\u7528\u4e8e\u6559\u5b66\u6f14\u793a\u3002\u771f\u5b9e\u573a\u666f\u5efa\u8bae\u4f7f\u7528\u4e13\u95e8\u7684\u5206\u8bcd\u5e93（\u5982 Jieba\u3001HanLP\u3001IKAnalyzer \u7b49）\u6765\u5f97\u5230\u8bcd\u7ea7\u5212\u5206\u3002<\/p>\n<\/li>\n<\/ul>\n
\u672c\u6587\u4ece\u591a\u4e2a\u89d2\u5ea6\u5b9e\u73b0\u5e76\u8bb2\u89e3\u4e86\u201c\u7edf\u8ba1\u6307\u5b9a\u5b57\u7b26\u4e32\u4e2d\u5355\u8bcd\u4e2a\u6570\u201d\u7684\u95ee\u9898\u3002\u5173\u952e\u8981\u70b9：<\/p>\n
\u201c\u5355\u8bcd\u201d\u7684\u5b9a\u4e49\u51b3\u5b9a\u7b97\u6cd5\u590d\u6742\u5ea6：\u5728\u4e0d\u540c\u8bed\u8a00\u4e0e\u4e1a\u52a1\u573a\u666f\u4e0b\u201c\u5355\u8bcd\u201d\u542b\u4e49\u4e0d\u540c\u2014\u2014\u82f1\u6587\u4e2d\u901a\u5e38\u4ee5\u7a7a\u767d\/\u6807\u70b9\u5206\u5272，\u800c\u4e2d\u6587\u9700\u8981\u5206\u8bcd\u5e93，\u4e13\u4e1a\u672f\u8bed\u6216\u7f29\u5199（\u5982 e-mail\u3001O'Reilly）\u4f1a\u5bfc\u81f4\u7b80\u5355\u65b9\u6cd5\u5931\u6548\u3002<\/p>\n<\/li>\n
\u591a\u79cd\u5b9e\u73b0\u5404\u6709\u4f18\u7f3a\u70b9：<\/p>\n
split：\u6700\u7b80\u5355，\u4f46\u5bf9\u6807\u70b9\/\u7f29\u5199\/\u8fde\u5b57\u7b26\u9c81\u68d2\u6027\u5dee；<\/p>\n<\/li>\n
regex：\u7075\u6d3b\u53ef\u63a7，\u4f46\u6b63\u5219\u590d\u6742\u4e14\u7ef4\u62a4\u6210\u672c\u9ad8；<\/p>\n<\/li>\n
BreakIterator：\u672c\u5730\u5316\u8868\u73b0\u66f4\u597d，\u63a8\u8350\u7528\u4e8e\u591a\u8bed\u8a00\u73af\u5883；<\/p>\n<\/li>\n
FSM：\u5185\u5b58\u53cb\u597d\u3001\u6027\u80fd\u7a33\u5b9a，\u9002\u5408\u6d41\u5f0f\u5904\u7406\u548c\u5927\u6587\u672c；<\/p>\n<\/li>\n
\u4e2d\u6587\u7b49\u65e0\u7a7a\u683c\u8bed\u8a00\u9700\u8981\u5206\u8bcd\u5668\u652f\u6301\u3002<\/p>\n<\/li>\n<\/ul>\n<\/li>\n
\u6027\u80fd\u8003\u8651：\u5bf9\u77ed\u6587\u672c\u4e09\u79cd\u65b9\u6cd5\u5dee\u522b\u4e0d\u5927；\u5bf9\u8d85\u957f\u6587\u672c\u6216\u9ad8\u541e\u5410\u573a\u666f，\u5e94\u4f18\u5148\u4f7f\u7528 FSM \u6216\u8868\u9a71\u52a8\/\u6d41\u5f0f\u65b9\u6cd5，\u907f\u514d split \u4ea7\u751f\u5927\u91cf\u4e2d\u95f4\u5bf9\u8c61\u3002<\/p>\n<\/li>\n
\u5de5\u7a0b\u5efa\u8bae：\u9ed8\u8ba4\u60c5\u51b5\u53ef\u91c7\u7528 BreakIterator（\u56fd\u9645\u5316）\u6216 FSM（\u9ad8\u6027\u80fd\u901a\u7528）；\u5bf9\u4e2d\u6587\/\u65e5\u6587\u6216\u9700\u8981\u8bed\u4e49\u7ea7\u5206\u8bcd\u7684\u573a\u666f，\u63a5\u5165\u6210\u719f\u5206\u8bcd\u5e93\u5e76\u505a\u505c\u7528\u8bcd\/\u8bcd\u5f62\u8fd8\u539f\u7b49\u9884\u5904\u7406\u3002<\/p>\n<\/li>\n
Q1：\u4e3a\u4ec0\u4e48 split("\\\\\\\\s+") \u6709\u65f6\u4f1a\u591a\u7b97\u6216\u5c11\u7b97\u5355\u8bcd？
\nA1：\u56e0\u4e3a\u5b83\u53ea\u6309\u7a7a\u767d\u5206\u5272，\u4e0d\u4f1a\u5254\u9664\u6807\u70b9\u6216\u8bc6\u522b\u7f29\u5199\u4e0e\u8fde\u5b57\u7b26，\u5bfc\u81f4 "hello," \u4f1a\u4f5c\u4e3a "hello,"（\u542b\u9017\u53f7）\u8ba1\u6570\u4e3a\u4e00\u4e2a token，\u4f46\u5982\u679c\u4f60\u8981\u6c42\u5254\u9664\u6807\u70b9\u5c31\u9700\u989d\u5916\u6e05\u6d17\u6216\u7528\u6b63\u5219\u5339\u914d\u3002<\/p>\n
Q2：BreakIterator \u80fd\u5426\u5b8c\u7f8e\u5904\u7406\u591a\u8bed\u8a00？
\nA2：BreakIterator \u63d0\u4f9b\u4e86\u8bed\u8a00\u654f\u611f\u7684\u8fb9\u754c\u68c0\u6d4b，\u5bf9\u4e8e\u82f1\u6587\u3001\u6cd5\u6587\u7b49\u57fa\u4e8e\u7a7a\u683c\u7684\u8bed\u8a00\u8868\u73b0\u826f\u597d，\u4f46\u5bf9\u4e2d\u6587\/\u65e5\u6587\u7b49\u65e0\u7a7a\u683c\u7684\u8bed\u8a00\u5e76\u4e0d\u6267\u884c\u8bed\u4e49\u5206\u8bcd（\u4ec5\u80fd\u68c0\u6d4b\u5b57\u7b26\/\u6807\u70b9），\u4ecd\u5efa\u8bae\u4f7f\u7528\u5206\u8bcd\u5668\u3002<\/p>\n
Q3：FSM \u662f\u5426\u80fd\u5904\u7406 Unicode \u8f83\u590d\u6742\u7684\u60c5\u51b5？
\nA3：\u53ef\u4ee5，\u4f46 Character.isLetterOrDigit \u662f\u8f83\u4fdd\u5b88\u7684\u5224\u65ad\u3002\u5177\u4f53\u4e1a\u52a1\u53ef\u6269\u5c55\u5224\u5b9a\u89c4\u5219（\u4f8b\u5982\u628a\u6487\u53f7\u3001\u8fde\u5b57\u7b26\u89c6\u4e3a\u8bcd\u5185\u5b57\u7b26），\u4e5f\u53ef\u6839\u636e UnicodeBlock \u8fdb\u4e00\u6b65\u7ec6\u5206\u3002<\/p>\n
Q4：\u5982\u4f55\u7edf\u8ba1\u5e26 HTML \u6807\u7b7e\u6216\u5b9e\u4f53\u7684\u6587\u672c\u4e2d\u7684\u5355\u8bcd？
\nA4：\u5148\u8fdb\u884c\u9884\u5904\u7406：\u5265\u79bb HTML \u6807\u7b7e（\u4f8b\u5982\u4f7f\u7528 Jsoup），\u5c06\u5b9e\u4f53\u8f6c\u4e3a\u6587\u672c，\u518d\u5bf9\u7eaf\u6587\u672c\u505a\u5355\u8bcd\u7edf\u8ba1\u3002<\/p>\n
Q5：\u5982\u4f55\u5904\u7406\u7f29\u5199\u3001\u6570\u5b57\u3001\u5e26\u767e\u5206\u53f7\u6216\u7279\u6b8a\u7b26\u53f7\u7684 token？
\nA5：\u8fd9\u5c5e\u4e8e\u4e1a\u52a1\u89c4\u5219，\u9700\u8981\u5b9a\u4e49\u54ea\u4e9b\u7b26\u53f7\u5141\u8bb8\u51fa\u73b0\u5728\u5355\u8bcd\u5185\u90e8（\u5982 3rd, 50%, e-mail），\u5e76\u636e\u6b64\u8c03\u6574\u6b63\u5219\u6216 FSM \u5224\u5b9a\u903b\u8f91\u3002<\/p>\n
\u5206\u8bcd\u5e93\u96c6\u6210（\u4e2d\u6587\/\u65e5\u6587\/\u97e9\u6587）：\u96c6\u6210 Jieba\/HanLP\/IKAnalyzer \u7b49\u80fd\u7ed9\u51fa\u8bcd\u7ea7\u5206\u5272\u5e76\u652f\u6301\u505c\u7528\u8bcd\u3001\u8bcd\u6027\u6807\u6ce8\u4e0e\u547d\u540d\u5b9e\u4f53\u8bc6\u522b\u3002<\/p>\n<\/li>\n
\u6d41\u5f0f\/\u5e76\u884c\u5904\u7406：\u5bf9\u5927\u6587\u4ef6\u6216\u65e5\u5fd7\u6d41\u5206\u5757\u5e76\u53d1\u5904\u7406，\u6ce8\u610f\u5206\u5757\u8fb9\u754c\u5904\u7684\u5355\u8bcd\u65ad\u88c2\u95ee\u9898（\u9700 carry-over \u7247\u6bb5）\u3002<\/p>\n<\/li>\n
\u66f4\u7cbe\u7ec6\u7684 Unicode \u652f\u6301：\u8003\u8651\u590d\u5408\u5b57\u7b26（combining marks）\u3001emoji（\u8868\u60c5\u7b26\u53f7）\u4ee5\u53ca\u53f3\u5230\u5de6\u6587\u5b57（RTL）\u5904\u7406\u3002<\/p>\n<\/li>\n
\u8bed\u4e49\u5316\u5206\u8bcd：\u5728\u9700\u8981\u8bed\u4e49\u5206\u6790\u573a\u666f\u4e0b，\u5f15\u5165\u8bcd\u5f62\u8fd8\u539f（lemmatization）\u4e0e\u53bb\u9664\u505c\u7528\u8bcd\u4ee5\u83b7\u5f97\u66f4\u6709\u610f\u4e49\u7684\u201c\u5355\u8bcd\u8ba1\u6570\u201d\u3002<\/p>\n<\/li>\n
\u5185\u5b58\u4f18\u5316：\u907f\u514d split \u7b49\u521b\u5efa\u5927\u91cf\u4e2d\u95f4\u5bf9\u8c61，\u6539\u7528 FSM\/BreakIterator \u6216 streaming API（\u9010\u5757\u8bfb\u53d6\u5e76\u5904\u7406）\u4ee5\u964d\u4f4e GC \u538b\u529b\u3002<\/p>\n<\/li>\n
\u57fa\u51c6\u6d4b\u8bd5：\u4f7f\u7528 JMH \u5bf9\u591a\u79cd\u5b9e\u73b0\u8fdb\u884c\u57fa\u51c6\u6d4b\u8bd5（\u4e0d\u540c\u8f93\u5165\u957f\u5ea6\u3001\u4e0d\u540c\u8bed\u8a00），\u627e\u51fa\u5728\u76ee\u6807\u573a\u666f\u4e0b\u6700\u4f18\u7684\u5b9e\u73b0\u3002<\/p>\n<\/li>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb715\u6b21\uff0c\u70b9\u8d5e32\u6b21\uff0c\u6536\u85cf27\u6b21\u3002JAVA:\u5b9e\u73b0\u6307\u5b9a\u5b57\u7b26\u4e32\u4e2d\u7684\u5355\u8bcd\u7684\u4e2a\u6570\u7b97\u6cd5\uff08\u9644\u5e26\u6e90\u7801\uff09<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,5373,190,427],"topic":[],"class_list":{"0":"post-55652","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-server","7":"tag-java","9":"tag-190","10":"tag-427"},"yoast_head":"\n