看错了>"< 从那里拔豆, 就要从那里站起来。 除了道歉之外，俺附上自己实作的版本。 对不起啦>"< 实作策略: 1. 先建构一个能比对keyword的基本类别Keyword 2. 利用字串切割split组成token list =========================================================== keyword档 abstract assert boolean break byte case catch char class const continue default do double else enum extends false final finally float for goto if implements import instanceof int interface long native new null package private protected public return short static strictfp super switch synchronized this throw throws transient true try void volatile while =========================================================== 2. Keyword类别 import java.io.BufferedReader; public class Keyword extends HashSet { public Keyword() { try { BufferedReader reader = new BufferedReader(new FileReader( "keyword")); String temp; while ((temp = reader.readLine()) != null) { this.add(temp.trim()); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static void main(String[] args){ System.out.println(new Keyword().contains("goto")); } } =========================================================== import java.util.Arrays; import java.util.Iterator; import java.util.List; public class Check { public static void main(String[] args) { Keyword keyword = new Keyword(); String userInput = "asfdasdfsafd\nsfdajsfkajknavgotokljdf aksdfad faskdflaksfd aslkfa sldflaskjdfaskj" + "dflaskdf \n goto\nif\njkjsk if("; Iterator tokens = Arrays.asList( userInput.split("[\\n\\ \\(\\),\\.\\r]+")).iterator(); String curToken = null; while (tokens.hasNext()) { curToken = (String) tokens.next(); if (keyword.contains(curToken)) { System.out.println("发现keyword [" + curToken + "]"); } else { System.out.println(curToken + "并没有什麽可疑之处"); } } } } =========================================================== asfdasdfsafd并没有什麽可疑之处 sfdajsfkajknavgotokljdf并没有什麽可疑之处 aksdfad并没有什麽可疑之处 faskdflaksfd并没有什麽可疑之处 aslkfa并没有什麽可疑之处 sldflaskjdfaskjdflaskdf并没有什麽可疑之处 发现keyword [goto] 发现keyword [if] jkjsk并没有什麽可疑之处 发现keyword [if] -- 夫兵者不祥之器物或恶之故有道者不处君子居则贵左用兵则贵右兵者不祥之器非君子 之器不得已而用之恬淡为上胜而不美而美之者是乐杀人夫乐杀人者则不可得志於天下 矣吉事尚左凶事尚右偏将军居左上将军居右言以丧礼处之杀人之众以哀悲泣之战胜以 丧礼处之道常无名朴虽小天下莫能臣侯王若能守之万物将自宾天地相合以降甘露民莫 之令而自均始制有名名亦既有夫亦将知止知止可以不殆譬道之在天下163.26.34.20海