public static String getBirthByIdCard(String idcard) {
		return getBirth(idcard);
	}
@Test
	public void getBirthByIdCardTest() {
		String birth = IdcardUtil.getBirthByIdCard(ID_18);
		assertEquals(birth, "19781216");

		String birth2 = IdcardUtil.getBirthByIdCard(ID_15);
		assertEquals(birth2, "19880730");
	}