diff --git a/src/main/java/top/fjy8018/designpattern/pattern/behavior/templatemethod/ACourse.java b/src/main/java/top/fjy8018/designpattern/pattern/behavior/templatemethod/ACourse.java
index 8f991bc..58a3096 100644
--- a/src/main/java/top/fjy8018/designpattern/pattern/behavior/templatemethod/ACourse.java
+++ b/src/main/java/top/fjy8018/designpattern/pattern/behavior/templatemethod/ACourse.java
@@ -1,9 +1,22 @@
 package top.fjy8018.designpattern.pattern.behavior.templatemethod;
 
 import lombok.extern.slf4j.Slf4j;
+import org.apache.ibatis.mapping.MappedStatement;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.Collection;
 
 /**
  * 抽象课程
+ * <p>
+ * {@link java.util.AbstractList} 提供抽象List实现
+ * 例如 {@link java.util.AbstractList#addAll(int, Collection)} 定义通过模板
+ * {@link java.util.AbstractMap} 同理
+ * <p>
+ * {@link javax.servlet.http.HttpServlet#doGet(HttpServletRequest, HttpServletResponse)} 也是模板定义
+ * {@link org.apache.ibatis.executor.BaseExecutor#doUpdate(MappedStatement, Object)} 等方法交由子类实现
+ * 例如 {@link org.apache.ibatis.executor.SimpleExecutor#doUpdate(MappedStatement, Object)}
  *
  * @author F嘉阳
  * @date 2020/3/4 10:59