修复TCP温度数据接收问题：实现正确的持续读取机制

Windows/CS/Framework4.0/Toprie/Toprie/DeviceManager.cs

@@ -1256,10 +1256,10 @@ namespace JoyD.Windows.CS.Toprie
                                 _isReceivingTemperatureData = true;
                             }
                             
-                            // 检查流是否有数据可读
+                            // 持续读取温度数据流
-                            if (localStream.DataAvailable)
+                            while (localTcpClient != null && localTcpClient.Connected && !isPaused)
                             {
-                                // 读取数据
+                                // 使用阻塞读取方式，等待数据到达
                                 int bytesRead = localStream.Read(buffer, 0, buffer.Length);
                                 if (bytesRead > 0)
                                 {
@@ -1306,11 +1306,7 @@ namespace JoyD.Windows.CS.Toprie
                                     continue;
                                 }
                             }                            
-                            else
+                            // while循环退出后的处理
-                            {
-                                // 短暂休眠避免CPU占用过高
-                                Thread.Sleep(SHORT_SLEEP_MS);
-                            }
                         }
                         catch (Exception ex)
                         {