public static String idCardNum(String idCardNum, int front, int end) {
		//身份证不能为空
		if (StrUtil.isBlank(idCardNum)) {
			return StrUtil.EMPTY;
		}
		//需要截取的长度不能大于身份证号长度
		if ((front + end) > idCardNum.length()) {
			return StrUtil.EMPTY;
		}
		//需要截取的不能小于0
		if (front < 0 || end < 0) {
			return StrUtil.EMPTY;
		}
		return StrUtil.hide(idCardNum, front, idCardNum.length() - end);
	}
@Test
	public void idCardNumTest() {
		assertEquals("5***************1X", DesensitizedUtil.idCardNum("51343620000320711X", 1, 2));
	}