贪吃蛇小项目

C#核心实践/贪吃蛇/Lesson4/Wall.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace 贪吃蛇
+{
+    class Wall : GameObject
+    {
+        public Wall(int x, int y)
+        {
+            pos = new Position(x, y);
+        }
+        public override void Draw()
+        {
+            Console.ForegroundColor = ConsoleColor.Red;
+            Console.SetCursorPosition(pos.x, pos.y);
+            Console.Write("■");
+        }
+    }
+}