Fix 1 Add Methods in Opc.

Modbus.Net/Modbus.Net.OPC/OpcProtocalLinker.cs

@@ -11,6 +11,42 @@ namespace Modbus.Net.OPC
     /// </summary>
     public abstract class OpcProtocalLinker : ProtocalLinker<OpcParamIn, OpcParamOut>
     {
+        /// <summary>
+        ///     发送并接收数据
+        /// </summary>
+        /// <param name="content">发送协议的内容</param>
+        /// <returns>接收协议的内容</returns>
+        public override async Task<OpcParamOut> SendReceiveAsync(OpcParamIn content)
+        {
+            var extBytes = BytesExtend(content);
+            var receiveBytes = await SendReceiveWithoutExtAndDecAsync(extBytes);
+            return receiveBytes == null
+                ? null
+                : receiveBytes.Value.Length == 0 ? receiveBytes : BytesDecact(receiveBytes);
+        }
+
+        /// <summary>
+        ///     发送并接收数据，不进行协议扩展和收缩，用于特殊协议
+        /// </summary>
+        /// <param name="content">发送协议的内容</param>
+        /// <returns>接收协议的内容</returns>
+        public override async Task<OpcParamOut> SendReceiveWithoutExtAndDecAsync(OpcParamIn content)
+        {
+            //发送数据
+            var receiveBytes = await BaseConnector.SendMsgAsync(content);
+            //容错处理
+            var checkRight = CheckRight(receiveBytes);
+            return checkRight == null
+                ? new OpcParamOut {Success = false, Value = new byte[0]}
+                : (!checkRight.Value ? null : receiveBytes);
+            //返回字符
+        }
+
+        /// <summary>
+        ///     检查接收的数据是否正确
+        /// </summary>
+        /// <param name="content">接收协议的内容</param>
+        /// <returns>协议是否是正确的</returns>
         public override bool? CheckRight(OpcParamOut content)
         {
             if (content == null || !content.Success) return false;