diff --git a/C#核心/Lesson12_继承-继承的基本概念/Program.cs b/C#核心/Lesson12_继承-继承的基本概念/Program.cs
index a9d0ec5..45711ed 100644
--- a/C#核心/Lesson12_继承-继承的基本概念/Program.cs
+++ b/C#核心/Lesson12_继承-继承的基本概念/Program.cs
@@ -90,7 +90,7 @@
 
 
             ChineseTeacher ct = new ChineseTeacher();
-            ct.name = "唐老师";
+            ct.name = "HK";
             ct.number = 2;
             ct.subject = "语文";
             ct.SpeakName();
diff --git a/C#核心/Lesson12_继承-继承的基本概念练习/Program.cs b/C#核心/Lesson12_继承-继承的基本概念练习/Program.cs
index d72b5f5..c6eab73 100644
--- a/C#核心/Lesson12_继承-继承的基本概念练习/Program.cs
+++ b/C#核心/Lesson12_继承-继承的基本概念练习/Program.cs
@@ -11,10 +11,9 @@
     }
     class Warrior : Human
     {
-        public int atk;
-        public void Attack()
+        public void Attack(Warrior OtherWarrior)
         {
-            Console.WriteLine("攻击");
+            Console.WriteLine("{0}攻击{1}",name,OtherWarrior.name);
         }
     }
     internal class Program
@@ -24,11 +23,10 @@
             Console.WriteLine("Hello, World!");
             Warrior w = new Warrior();
             w.name = "HK";
-            w.age = 18;
             w.Speak();
-            w.atk = 5;
-            w.Attack();
-
+            Warrior w2 = new Warrior();
+            w2.name = "KH";
+            w2.Attack(w);
         }
     }
 }