添加Lesson21

C#进阶/反射练习库/test.cs

@@ -6,6 +6,10 @@ using System.Threading.Tasks;
 
 namespace 反射练习库
 {
+    class MyCustomAttribute: Attribute
+    {
+
+    }
     public struct Position
     {
         public int x;
@@ -19,6 +23,7 @@ namespace 反射练习库
     }
     public class Player
     {
+        [MyCustom()]
         public string name;
         public int hp;
         public int atk;