fix bug: couldn't convert package

server/src/UdpServer.cs

@@ -2,6 +2,7 @@ using System.Net;
 using System.Net.Sockets;
 using System.Runtime.CompilerServices;
 using System.Text;
+using System.Threading.Tasks;
 using DotNext;
 using DotNext.Threading;
 using Newtonsoft.Json;
@@ -392,6 +393,23 @@ public class UDPServer
         }
     }
 
+    /// <summary>
+    /// 清空指定IP地址的数据
+    /// </summary>
+    /// <param name="ipAddr">IP地址</param>
+    /// <returns>无</returns>
+    public async Task ClearUDPData(string ipAddr)
+    {
+        using (await udpData.AcquireWriteLockAsync())
+        {
+            if (udpData.TryGetValue(ipAddr, out var dataQueue) && dataQueue.Count > 0)
+            {
+                dataQueue.Clear();
+            }
+        }
+    }
+
+
     /// <summary>
     /// Start UDP Server
     /// </summary>