maybe fix bug: download bitstream failed

server/src/UdpServer.cs

@@ -116,6 +116,7 @@ public class UDPServer
     /// </summary>
     /// <param name="ipAddr"> 目标IP地址 </param>
     /// <param name="timeout">超时时间</param>
+    /// <param name="cycle">延迟时间</param>
     /// <param name="callerName">调用函数名称</param>
     /// <param name="callerLineNum">调用函数位置</param>
     /// <returns>
@@ -124,7 +125,7 @@ public class UDPServer
     /// Optional 存在时，为最先收到的数据
     /// </returns>
     public async ValueTask<Optional<UDPData>> FindDataAsync(
-         string ipAddr, int timeout = 1000,
+         string ipAddr, int timeout = 1000, int cycle = 0,
          [CallerMemberName] string callerName = "",
          [CallerLineNumber] int callerLineNum = 0)
     {
@@ -153,6 +154,8 @@ public class UDPServer
                     break;
                 }
             }
+
+            await Task.Delay(cycle);
         }
 
         if (data is null)
@@ -171,8 +174,9 @@ public class UDPServer
     /// </summary>
     /// <param name="ipAddr">IP地址</param>
     /// <param name="timeout">超时时间</param>
+    /// <param name="cycle">延迟时间</param>
     /// <returns>数据列表</returns>
-    public async ValueTask<Optional<List<UDPData>>> GetDataArrayAsync(string ipAddr, int timeout = 1000)
+    public async ValueTask<Optional<List<UDPData>>> GetDataArrayAsync(string ipAddr, int timeout = 1000, int cycle = 0)
     {
         List<UDPData>? data = null;