[Openfastdotnet-users] 每个field的内容长度

[<260...@qq...>]

您好，
在使用openfast解析传递过来的stream时，有个地方一直不明白,UnsignedInteger.cs中的这个方法
  public override ScalarValue Decode(Stream inStream)
        {
            long value = 0;
            uint byt;
            try
            {
                do
                {
                    byt = (uint) inStream.ReadByte();
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; value = (value << 7) | (byt &amp; 0x7f); ----此处就代表单元格内容长度么，即由多少bit组成的，请问为什么要这么写，看不明白...
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; } while ((byt &amp; StopBit) == 0);
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; catch (IOException e)
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; {
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; throw new RuntimeException(e);
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; }
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return CreateValue(value);
&nbsp; &nbsp; &nbsp; &nbsp; }



如能回复，不甚感激。