添加项目文件。

Data/ModbusResourceManager.cs

@@ -0,0 +1,69 @@
+using System;
+using Modbus.Device;
+using System.Net.Sockets;
+
+namespace 全自动水压检测仪.Data
+{
+    // 单例模式：全局唯一资源管理器
+    public class ModbusResourceManager
+    {
+        // 私有构造函数：禁止外部new
+        private ModbusResourceManager() { }
+
+        // 唯一实例
+        private static readonly Lazy<ModbusResourceManager> _instance = new Lazy<ModbusResourceManager>(() => new ModbusResourceManager());
+        public static ModbusResourceManager Instance => _instance.Value;
+
+        // 共享资源
+        public TcpClient TcpClient { get; private set; }
+        public IModbusMaster ModbusMaster { get; private set; }
+
+        // 初始化资源（在程序启动时调用，如MainWindow加载时）
+        public bool Init(string ip, int port)
+        {
+            try
+            {
+                // 先释放旧资源
+                ReleaseResource();
+
+                // 创建新连接
+                TcpClient = new TcpClient();
+                TcpClient.Connect(ip, port);
+                ModbusMaster = ModbusIpMaster.CreateIp(TcpClient);
+                return true;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"资源初始化失败：{ex.Message}");
+                ReleaseResource();
+                return false;
+            }
+        }
+
+        public void Dispose()
+        {
+            try
+            {
+                ModbusMaster?.Dispose();
+                TcpClient?.Close();
+            }
+            catch
+            {
+                // 忽略清理时的异常
+            }
+        }
+        // 释放资源（统一释放，避免重复关闭）
+        public void ReleaseResource()
+        {
+            ModbusMaster?.Dispose();
+            ModbusMaster = null;
+
+            //if (TcpClient?.Connected ?? false)
+            //{
+            //    TcpClient.Close();
+            //}
+            TcpClient?.Dispose();
+            TcpClient = null;
+        }
+    }
+}