2014-08-01 update 6 Add comment

NA200H/ModBus.Net/ProtocalLinker.cs

@@ -2,22 +2,54 @@
 
 namespace ModBus.Net
 {
+    /// <summary>
+    /// 基本的协议连接器
+    /// </summary>
     public abstract class ProtocalLinker
     {
+        /// <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 abstract byte[] SendReceive(byte[] content);
 
+        /// <summary>
+        /// 仅发送数据
+        /// </summary>
+        /// <param name="content">发送协议的内容</param>
+        /// <returns>协议是否正确发送</returns>
         public abstract bool SendOnly(byte[] content);
 
+        /// <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 abstract bool CheckRight(byte[] content);
+
+        /// <summary>
+        /// 协议内容扩展，发送时根据需要扩展
+        /// </summary>
+        /// <param name="content">扩展前的基本协议内容</param>
+        /// <returns>扩展后的协议内容</returns>
         public byte[] BytesExtend(byte[] content)
         {
+            //自动查找相应的协议放缩类，命令规则为——当前的实际类名（注意是继承后的）+"BytesExtend"。
             ProtocalLinkerBytesExtend bytesExtend =
                 Assembly.Load("ModBus.Net").CreateInstance(this.GetType().FullName + "BytesExtend") as
                     ProtocalLinkerBytesExtend;
             return bytesExtend.BytesExtend(content);
         }
 
+        /// <summary>
+        /// 协议内容缩减，接收时根据需要缩减
+        /// </summary>
+        /// <param name="content">缩减前的完整协议内容</param>
+        /// <returns>缩减后的协议内容</returns>
         public byte[] BytesDecact(byte[] content)
         {
+            //自动查找相应的协议放缩类，命令规则为——当前的实际类名（注意是继承后的）+"BytesExtend"。
             ProtocalLinkerBytesExtend bytesExtend =
                 Assembly.Load("ModBus.Net").CreateInstance(this.GetType().FullName + "BytesExtend") as
                     ProtocalLinkerBytesExtend;