public static String carLicense(String carLicense) {
		if (StrUtil.isBlank(carLicense)) {
			return StrUtil.EMPTY;
		}
		// 普通车牌
		if (carLicense.length() == 7) {
			carLicense = StrUtil.hide(carLicense, 3, 6);
		} else if (carLicense.length() == 8) {
			// 新能源车牌
			carLicense = StrUtil.hide(carLicense, 3, 7);
		}
		return carLicense;
	}
@Test
	public void carLicenseTest() {
		assertEquals("", DesensitizedUtil.carLicense(null));
		assertEquals("", DesensitizedUtil.carLicense(""));
		assertEquals("苏D4***0", DesensitizedUtil.carLicense("苏D40000"));
		assertEquals("陕A1****D", DesensitizedUtil.carLicense("陕A12345D"));
		assertEquals("京A123", DesensitizedUtil.carLicense("京A123"));
	}