HarmonyOS 鸿蒙Next socket udp广播发送如何以16进制发送

用测试工具以16进制发送 cf 00 cf 服务器会返回消息；

但是使用鸿蒙以16进制发送 cf 00 cf 服务器无消息回复，但是测试工具可以收到消息。

  let  jsonString = “CF 00 CF”

<span class="hljs-keyword"><span class="hljs-keyword">const</span></span> hexBytes = jsonString.split(<span class="hljs-string"><span class="hljs-string">' '</span></span>).map(hex =&gt; {
  <span class="hljs-comment"><span class="hljs-comment">// 将每个16进制数转换为十进制数（字节）</span></span>
  <span class="hljs-keyword"><span class="hljs-keyword">return</span></span> <span class="hljs-built_in"><span class="hljs-built_in">parseInt</span></span>(hex, <span class="hljs-number"><span class="hljs-number">16</span></span>);
});
<span class="hljs-comment"><span class="hljs-comment">// 创建一个Uint8Array来存储字节数据</span></span>
<span class="hljs-keyword"><span class="hljs-keyword">let</span></span> objbuff: <span class="hljs-built_in"><span class="hljs-built_in">Uint8Array</span></span> = <span class="hljs-keyword"><span class="hljs-keyword">new</span></span> <span class="hljs-built_in"><span class="hljs-built_in">Uint8Array</span></span>(hexBytes);


<span class="hljs-keyword"><span class="hljs-keyword">let</span></span> remoteAddress:socket.NetAddress = { address: <span class="hljs-string"><span class="hljs-string">"255.255.255.255"</span></span>, port: <span class="hljs-number"><span class="hljs-number">10061</span></span>, family: <span class="hljs-number"><span class="hljs-number">1</span></span> }
<span class="hljs-keyword"><span class="hljs-keyword">this</span></span>.udpSocket.send({ data:objbuff.buffer, address: remoteAddress })
  .then( () =&gt; {
    console.log(<span class="hljs-string"><span class="hljs-string">'setExtraOptions fail'</span></span>);
  })
  .catch((e:BusinessError) =&gt; {
    console.log(<span class="hljs-string"><span class="hljs-string">'setExtraOptions fail'</span></span>);
  })</code></pre>  <p>这是我发送消息的代码，该如何向网络测试工具一样以16进制形式发送，或者是其他问题。</p>  <p>求大佬解答。</p></div></div>