public static List
     
       listFile(List
      
        lstFileNames, File f,            String suffix, boolean isdepth) {        // 若是目录, 采用递归的方法遍历子目录        try {            if (f.isDirectory()) {                File[] t = f.listFiles();                for (int i = 0; i < t.length; i++) {                    if (isdepth || t[i].isFile()) {                        listFile(lstFileNames, t[i], suffix, isdepth);                    }                }            } else {                String filePath = f.getPath();                if (!suffix.equals("")) {                    int begIndex = filePath.lastIndexOf(".");                     String tempsuffix = "";                    if (begIndex != -1) {                        tempsuffix = filePath.substring(begIndex + 1,                                filePath.length());                        if (suffix.contains("." + tempsuffix + ".")) {                            System.out.println("filePath:"+filePath);                            lstFileNames.add(filePath);                        }                    }                } else {                    lstFileNames.add(filePath);                }            }        } catch (Exception e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return lstFileNames;    }