Scanner scanner = new Scanner(file).useDelimiter("'")但这是非常低效的。更好的前进方式是：逐个字符地阅读：
private static void readCharacters(Reader reader) throws IOException { int r; while ((r = reader.read()) != -1) { char ch = (char) r; doSomethingWithChar(ch); }}另请参阅这里
