public static void main(String[] args) throws Exception{ File file = new File(args[args.length-1]);     baseFunction(args,file);extendFunction(args,file);
}

public static void baseFunction(String[] strings, File file)throws IOException{if (file == null || !file.exists())throw new FileNotFoundException(file + "，文件不存在！");baseCount(file);List<String> list = Arrays.asList(strings);if (list.contains("-c")){//countChar()System.out.println(file.getName() + "," + result1); } if (list.contains("-w")&& !list.contains("-e")){ //countWord() System.out.println(file.getName() + "," + result2); } if (list.contains("-l")){ //counLine() System.out.println(file.getName() + "," + result3); } if (list.contains("-o")){ String content = new String(file.getName() + "\r\n" + result1 + "\r\n" + result2 + "\r\n" + result3); Path outPath = Paths.get("output.txt"); File output = new File(outPath.toString()); Files.write(outPath,content.getBytes()); } }

 public static void baseCount(File file) throws IOException{BufferedReader br = helper(file);String s = null;while ((s = br.readLine()) != null){s = br.readLine();countChar(s);countWord(s);countLine(s);}}

public static void extendFunction(String[] strings,File file)throws IOException{extendCount(file);List<String> list = Arrays.asList(strings);if (list.contains("-s")){//recFile(file);}if (list.contains("-a")){System.out.println(file.getName() +",代码行 / 空行 / 注释行：" + codeLineNum + "/" + blankLineNum + "/" + annotationLineNum); } if (list.contains("-w")&&list.contains("-e")){ baseCount(file); String s1 = list.get(list.indexOf("-w")+1); String s2 = list.get(list.indexOf("-e")+1); File file1 = new File(s1); File file2 = new File(s2); int sameNum = stopList(file1,file2); System.out.println(file.getName() +",单词数：" + (wordNum - sameNum)); } }

public static void extendCount(File file) throws IOException{exCountLine(file);recFile(file);}

public static void exCountLine(File file) throws IOException {if (file == null || !file.exists())throw new FileNotFoundException(file + "，文件不存在！");//fileCount ++;   // 文件数累加if (file.isDirectory()) {recFile(file);} else {BufferedReader bufr = null; try { // 将指定路径的文件与字符流绑定 bufr = new BufferedReader(new InputStreamReader(new FileInputStream(file))); } catch (FileNotFoundException e) { throw new FileNotFoundException(file + "，文件不存在！" + e); } // 定义匹配每一行的正则匹配器 Pattern annotationLinePattern = Pattern.compile("((//)|(/\\*+)|((^\\s)*\\*)|((^\\s)*\\*+/))+", Pattern.MULTILINE + Pattern.DOTALL); // 注释匹配器(匹配单行、多行、文档注释)  Pattern blankLinePattern = Pattern.compile("^\\s*$"); // 空白行匹配器（匹配回车、tab键、空格）  Pattern codeLinePattern = Pattern.compile("(?!import|package).+;\\s*(((//)|(/\\*+)).*)*", Pattern.MULTILINE + Pattern.DOTALL); // 代码行匹配器（以分号结束为一行有效语句,但不包括import和package语句） // 遍历文件中的每一行，并根据正则匹配的结果记录每一行匹配的结果 String line = null; try { while ((line = bufr.readLine()) != null) { if (annotationLinePattern.matcher(line).find()) { annotationLineNum++; } if (blankLinePattern.matcher(line).find()) { blankLineNum++; } if (codeLinePattern.matcher(line).matches()) { codeLineNum++; } } } catch (IOException e) { throw new RuntimeException("读取文件失败！" + e); } finally { try { bufr.close(); // 关闭文件输入流并释放系统资源 } catch (IOException e) { throw new RuntimeException("关闭文件输入流失败！"); } } } }

public static void  recFile(File file) throws IOException{File[] files = file.listFiles(new FileFilter() {public boolean accept(File pathname) {return pathname.getName().endsWith(".c") || pathname.isDirectory();}});for (File target : files) {extendCount(target);}}

public static int stopList(File file1,File file2) throws IOException{String[] strings1 = word(file1);String[] strings2 = word(file2);return same(strings1,strings2);}public static String[] word(File file) throws IOException{BufferedReader br = helper(file); String s = null; String[] content = null; while ((s=br.readLine())!=null){ s = br.readLine(); String a = ","; s.replaceAll(a," "); content = s.split(" "); } return content; } public static int same(String[] a,String[] b){ ArrayList<String> same = new ArrayList<String>(); ArrayList<String> temp = new ArrayList<String>(); for (int i = 0; i < a.length; i++) { temp.add(a[i]); //把数组a中的元素放到Set中，可以去除重复的元素  } for (int j = 0; j < b.length; j++) { //把数组b中的元素添加到temp中 //如果temp中已存在相同的元素，则temp.add（b[j]）返回false if(!temp.add(b[j])) same.add(b[j]); } return same.size(); }

wc.exe -c file.c     //返回文件 file.c 的字符数
wc.exe -w file.c     //返回文件 file.c 的单词总数
wc.exe -l file.c     //返回文件 file.c 的总行数
wc.exe -o outputFile.txt     //将结果输出到指定文件outputFile.txt

wc.exe -s            //递归处理目录下符合条件的文件
wc.exe -a file.c     //返回更复杂的数据（代码行 / 空行 / 注释行）
wc.exe -e stopList.txt  // 停用词表，统计文件单词总数时，不统计该表中的单词