diff --git a/day11/src/com/inmind/reference05/Demo07.java b/day11/src/com/inmind/reference05/Demo07.java
index 928f02e..3765a6b 100644
--- a/day11/src/com/inmind/reference05/Demo07.java
+++ b/day11/src/com/inmind/reference05/Demo07.java
@@ -4,4 +4,42 @@ package com.inmind.reference05;
 案例：英雄角色，获取武器，获取防御装，闯关,施放技能
  */
 public class Demo07 {
+    public static void main(String[] args) {
+        //开始游戏
+        //选择一个英雄
+        Hero hero = new Hero();
+        hero.setName("德玛西亚");
+        //打怪，掉落一把屠龙刀
+        Weapon weapon = new Weapon("屠龙刀", 999);
+        hero.setWeapon(weapon);
+        //打怪，掉落了一个反甲防具
+        Armor armor = new Armor("反甲", 888);
+        hero.setArmor(armor);
+        //打boss
+        hero.attack();
+        hero.protect();
+
+        //掉落了一项技能（匿名内部类实现）
+         /*
+         简化写法：
+         hero.setSkill(new Skill() {
+            @Override
+            public void outSkill() {
+                System.out.println("野火燎原");
+            }
+        });*/
+        Skill skill = new Skill() {
+            @Override
+            public void outSkill() {
+                System.out.println("野火燎原");
+            }
+        };
+
+        //英雄获取了技能
+        hero.setSkill(skill);
+
+        //英雄可以释放技能
+        hero.outSkill();
+
+    }
 }
diff --git a/day11/src/com/inmind/reference05/Hero.java b/day11/src/com/inmind/reference05/Hero.java
index 5379f97..c2b4566 100644
--- a/day11/src/com/inmind/reference05/Hero.java
+++ b/day11/src/com/inmind/reference05/Hero.java
@@ -8,6 +8,8 @@ public class Hero {
     private Weapon weapon;//武器属性  自定义引用数据类型作为了成员变量
     private Armor armor;//防具属性
 
+    private Skill skill;//技能属性，接口作为了属性
+
     private ArrayList<Weapon> weapons = new ArrayList<>();//武器的背包
 //    private ArrayList<Armor> armors;//武器的背包
 
@@ -27,6 +29,23 @@ public class Hero {
         System.out.println(this.name+"使用了"+this.armor.getName()+"防具，防御了"+this.armor.getProtectNum()+"伤害");
     };
 
+    //施放技能
+    public void outSkill(){
+        if (this.skill != null) {
+            System.out.println("英雄施放了技能：");
+            this.skill.outSkill();
+        } else {
+            System.out.println("您暂未获取技能");
+        }
+    }
+
+    public Skill getSkill() {
+        return skill;
+    }
+
+    public void setSkill(Skill skill) {
+        this.skill = skill;
+    }
 
     public String getName() {
         return name;
diff --git a/day11/src/com/inmind/reference05/Skill.java b/day11/src/com/inmind/reference05/Skill.java
new file mode 100644
index 0000000..9aec003
--- /dev/null
+++ b/day11/src/com/inmind/reference05/Skill.java
@@ -0,0 +1,5 @@
+package com.inmind.reference05;
+//定义 了一个技能接口，它的作用技能能施放
+public interface Skill {
+    void outSkill();
+}