public static String writeList(final Iterable<? extends Object> iterable) {
        StringBuilder sb = new StringBuilder();
        sb.append(BConst.LIST_START);
        if (iterable != null) {
            Iterator<? extends Object> iterator = iterable.iterator();
            while (iterator.hasNext()) {
                sb.append(writeObj(iterator.next()));
            }
        }
        sb.append(BConst.COMMON_END);
        return sb.toString();
    }