public static ArrayList<Student> loadStu() {
		ArrayList<Student> list = new ArrayList<>();
		Student stu = new Student();
		FileReader fr = null;
		BufferedReader br = null;
		try {
			fr = new FileReader("d:/object.txt");
			br = new BufferedReader(fr);
			int ch = 0;
			String tmp = "";
			while (true) {
				while (((char) (ch = br.read()) != '\n') && ch != -1) {
					tmp += (char) ch;
				}
				if (ch == -1) {
					break;
				}
				String[] sp = tmp.split(":");
				tmp = "";
				stu.setName(sp[0]);
				stu.setId(Integer.parseInt(sp[1]));
				list.add(stu);
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				if (br != null) {
					br.close();
				}
				if (fr != null) {
					fr.close();
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return list;
	}