diff --git a/src/main/java/org/netty/demo/protocol/CmdHandlerInitializer.java b/src/main/java/org/netty/demo/protocol/CmdHandlerInitializer.java
index fae5987..5dc7726 100644
--- a/src/main/java/org/netty/demo/protocol/CmdHandlerInitializer.java
+++ b/src/main/java/org/netty/demo/protocol/CmdHandlerInitializer.java
@@ -8,7 +8,9 @@
 import io.netty.handler.codec.LineBasedFrameDecoder;
 
 /**
- * Created by XiuYin.Cui on 2018/8/26.
+ * 传入数据流是一系列的帧，每个帧都由换行符（\n）分隔；
+ * 每个帧都由一系列的元素组成，每个元素都由单个空格字符分隔；
+ * 一个帧的内容代表一个命令，定义为一个命令名称后跟着数目可变的参数。
  */
 public class CmdHandlerInitializer extends ChannelInitializer<Channel> {
 
@@ -25,7 +27,9 @@ protected void initChannel(Channel ch) throws Exception {
      * Cmd POJO
      */
     public static final class Cmd {
+        // 表示命令
         private final ByteBuf name;
+        //表示可变的参数
         private final ByteBuf args;
 
         public Cmd(ByteBuf name, ByteBuf args) {
diff --git a/src/main/java/org/netty/demo/protocol/LengthBasedInitializer.java b/src/main/java/org/netty/demo/protocol/LengthBasedInitializer.java
index 59c97d8..ff08d70 100644
--- a/src/main/java/org/netty/demo/protocol/LengthBasedInitializer.java
+++ b/src/main/java/org/netty/demo/protocol/LengthBasedInitializer.java
@@ -12,7 +12,6 @@
  */
 public class LengthBasedInitializer extends ChannelInitializer<Channel> {
 
-
     @Override
     protected void initChannel(Channel ch) throws Exception {
         ch.pipeline().addLast(
diff --git a/src/main/java/org/netty/demo/protocol/LineBasedHandlerInitializer.java b/src/main/java/org/netty/demo/protocol/LineBasedHandlerInitializer.java
index 3c6812b..179d405 100644
--- a/src/main/java/org/netty/demo/protocol/LineBasedHandlerInitializer.java
+++ b/src/main/java/org/netty/demo/protocol/LineBasedHandlerInitializer.java
@@ -17,11 +17,11 @@ protected void initChannel(Channel ch) throws Exception {
         ch.pipeline().addLast(
                 // 将提取到的桢转发给下一个Channelhandler
                 new LineBasedFrameDecoder(64 * 1024),
+                // 添加 FrameHandler 以接收帧
                 new FrameHandler()
         );
     }
 
-
     public static final class FrameHandler extends SimpleChannelInboundHandler<ByteBuf> {
 
         @Override