public static String email(String email) {
		if (StrUtil.isBlank(email)) {
			return StrUtil.EMPTY;
		}
		int index = StrUtil.indexOf(email, '@');
		if (index <= 1) {
			return email;
		}
		return StrUtil.hide(email, 1, index);
	}
@Test
	public void emailTest() {
		assertEquals("d********@126.com", DesensitizedUtil.email("duandazhi@126.com"));
		assertEquals("d********@gmail.com.cn", DesensitizedUtil.email("duandazhi@gmail.com.cn"));
		assertEquals("d*************@gmail.com.cn", DesensitizedUtil.email("duandazhi-jack@gmail.com.cn"));
	}