diff --git a/DungeonShooting_Godot/src/framework/Grid.cs b/DungeonShooting_Godot/src/framework/Grid.cs
index ac48e11..4966fa1 100644
--- a/DungeonShooting_Godot/src/framework/Grid.cs
+++ b/DungeonShooting_Godot/src/framework/Grid.cs
@@ -4,12 +4,20 @@
 using Godot;
 
 /// <summary>
-/// 网格数据结构
+/// 网格数据结构, 通过 x 和 y 存储数据
 /// </summary>
 public class Grid<T>
 {
+    /// <summary>
+    /// 遍历网格数据回调
+    /// </summary>
+    public delegate void EachGridCallback(int x, int y, T data);
+    
     private readonly Dictionary<int, Dictionary<int, T>> _map = new Dictionary<int, Dictionary<int, T>>();
 
+    /// <summary>
+    /// 返回指定xy位置是否存在数据
+    /// </summary>
     public bool Contains(int x, int y)
     {
         if (_map.TryGetValue(x, out var value))
@@ -20,6 +28,9 @@
         return false;
     }
 
+    /// <summary>
+    /// 设置指定xy位置的数据
+    /// </summary>
     public void Set(int x, int y, T data)
     {
         if (_map.TryGetValue(x, out var value))
@@ -34,6 +45,9 @@
         }
     }
 
+    /// <summary>
+    /// 获取指定xy位置的数据
+    /// </summary>
     public T Get(int x, int y)
     {
         if (_map.TryGetValue(x, out var value))
@@ -43,7 +57,13 @@
 
         return default;
     }
-
+    
+    /// <summary>
+    /// 往一个区域中填充指定的数据
+    /// </summary>
+    /// <param name="pos">起点位置</param>
+    /// <param name="size">区域大小</param>
+    /// <param name="data">数据</param>
     public void AddRect(Vector2 pos, Vector2 size, T data)
     {
         var x = (int)pos.x;
@@ -66,6 +86,11 @@
         }
     }
 
+    /// <summary>
+    /// 移除指定区域数据
+    /// </summary>
+    /// <param name="pos">起点位置</param>
+    /// <param name="size">区域大小</param>
     public void RemoveRect(Vector2 pos, Vector2 size)
     {
         var x = (int)pos.x;
@@ -86,6 +111,11 @@
         }
     }
 
+    /// <summary>
+    /// 检测矩形区域内是否与其他数据有碰撞
+    /// </summary>
+    /// <param name="pos">起点位置</param>
+    /// <param name="size">区域大小</param>
     public bool RectCollision(Vector2 pos, Vector2 size)
     {
         var x = (int)pos.x;
@@ -113,7 +143,10 @@
         return false;
     }
 
-    public void ForEach(Action<int, int, T> cb)
+    /// <summary>
+    /// 遍历网格数据
+    /// </summary>
+    public void ForEach(EachGridCallback cb)
     {
         foreach (var pair1 in _map)
         {