public static String numberCharToChinese(char c, boolean isUseTraditional) {
		if (c < '0' || c > '9') {
			return String.valueOf(c);
		}
		return String.valueOf(numberToChinese(c - '0', isUseTraditional));
	}
@Test
	public void numberCharToChineseTest() {
		String s = NumberChineseFormatter.numberCharToChinese('1', false);
		assertEquals("一", s);
		s = NumberChineseFormatter.numberCharToChinese('2', false);
		assertEquals("二", s);
		s = NumberChineseFormatter.numberCharToChinese('0', false);
		assertEquals("零", s);

		// 非数字字符原样返回
		s = NumberChineseFormatter.numberCharToChinese('A', false);
		assertEquals("A", s);
	}