docs: public static String formatChineseDate(Date date, boolean isUppercase) {
  		if (null == date) {
  			return null;
  		}
  
  		String format = DatePattern.CHINESE_DATE_FORMAT.format(date);
  		if (isUppercase) {
  			final StringBuilder builder = StrUtil.builder(format.length());
  			builder.append(Convert.numberToChinese(Integer.parseInt(format.substring(0, 1)), false));
  			builder.append(Convert.numberToChinese(Integer.parseInt(format.substring(1, 2)), false));
  			builder.append(Convert.numberToChinese(Integer.parseInt(format.substring(2, 3)), false));
  			builder.append(Convert.numberToChinese(Integer.parseInt(format.substring(3, 4)), false));
  			builder.append(format.substring(4, 5));
  			builder.append(Convert.numberToChinese(Integer.parseInt(format.substring(5, 7)), false));
  			builder.append(format.substring(7, 8));
  			builder.append(Convert.numberToChinese(Integer.parseInt(format.substring(8, 10)), false));
  			builder.append(format.substring(10));
  			format = builder.toString().replace('零', '〇');
  		}
  		return format;
  	}