code: public static boolean isAllNonChinese(byte[] sString)
      {
          int nLen = sString.length;
          int i = 0;
  
          while (i < nLen)
          {
              if (getUnsigned(sString[i]) < 248 && getUnsigned(sString[i]) > 175)
                  return false;
              if (sString[i] < 0)
                  i += 2;
              else
                  i += 1;
          }
          return true;
      }
docs: 是否全部不是中文
  @param sString
  @return