@Override
	public String toString() {
		return this.toJSONString(0);
	}
@Test
	public void toStringTest2() {
		final String str = "{\"test\":\"关于开展2018年度“文明集体”、“文明职工”评选表彰活动的通知\"}";
		//noinspection MismatchedQueryAndUpdateOfCollection
		final JSONObject json = new JSONObject(str);
		assertEquals(str, json.toString());
	}