diff --git a/book/README.md b/book/README.md
index 3178fcb..f3b3adb 100644
--- a/book/README.md
+++ b/book/README.md
@@ -139,3 +139,12 @@ func LoadConfigFromYaml(configFilePath string) error {
 ```
 
 ### 编写单元测试，验证模块的正确性
+
+
+
+
+## 如何组装我们的业务代码
+
++ m: model
++ v: api
++ c: controller
\ No newline at end of file
diff --git a/book/api/README.md b/book/api/README.md
new file mode 100644
index 0000000..2decdbb
--- /dev/null
+++ b/book/api/README.md
@@ -0,0 +1,2 @@
+# 接口层
+
diff --git a/book/controller/README.md b/book/controller/README.md
new file mode 100644
index 0000000..f7e908c
--- /dev/null
+++ b/book/controller/README.md
@@ -0,0 +1 @@
+# 业务层 (业务处理逻辑)
\ No newline at end of file
diff --git a/book/model/README.md b/book/model/README.md
new file mode 100644
index 0000000..9089fd4
--- /dev/null
+++ b/book/model/README.md
@@ -0,0 +1 @@
+# 存储数据模型(数据库里的表)