diff --git a/Controller/RunTimeController.cs b/Controller/RunTimeController.cs
index e51d998..268b392 100644
--- a/Controller/RunTimeController.cs
+++ b/Controller/RunTimeController.cs
@@ -285,7 +285,7 @@ namespace Milimoe.FunGame.Core.Controller
             }
             throw new ConnectFailedException();
         }
-        
+
         /// <summary>
         /// 基于本地已连接的Socket创建新的数据请求<para/>
         /// 加载项专用（<see cref="Library.Common.Addon.Plugin"/> / <see cref="Library.Common.Addon.GameModule"/>）
diff --git a/Entity/Item/Item.cs b/Entity/Item/Item.cs
index d0bd868..1d07b8c 100644
--- a/Entity/Item/Item.cs
+++ b/Entity/Item/Item.cs
@@ -1,5 +1,4 @@
-using System;
-using Milimoe.FunGame.Core.Interface.Entity;
+using Milimoe.FunGame.Core.Interface.Entity;
 
 namespace Milimoe.FunGame.Core.Entity
 {
diff --git a/Library/Common/Addon/GameMap.cs b/Library/Common/Addon/GameMap.cs
index 8a8c754..52aa9ca 100644
--- a/Library/Common/Addon/GameMap.cs
+++ b/Library/Common/Addon/GameMap.cs
@@ -28,7 +28,7 @@ namespace Milimoe.FunGame.Core.Library.Common.Addon
         /// 长度
         /// </summary>
         public abstract float Length { get; }
-        
+
         /// <summary>
         /// 宽度
         /// </summary>
@@ -57,7 +57,7 @@ namespace Milimoe.FunGame.Core.Library.Common.Addon
         /// <param name="z"></param>
         /// <returns></returns>
         public Grid this[float x, float y, float z = 0] => Grids.Values.Where(g => g.X == x && g.Y == y && g.Z == z).FirstOrDefault();
-        
+
         /// <summary>
         /// 使用坐标获取格子，从0号开始
         /// </summary>
@@ -89,7 +89,7 @@ namespace Milimoe.FunGame.Core.Library.Common.Addon
                 // 生成格子
                 for (float x = 0; x < Length; x++)
                 {
-                    for (float y = 0; y< Width; y++)
+                    for (float y = 0; y < Width; y++)
                     {
                         for (float z = 0; z < Height; z++)
                         {
diff --git a/Library/Common/Addon/Grid.cs b/Library/Common/Addon/Grid.cs
index ccaa4db..81d5c7d 100644
--- a/Library/Common/Addon/Grid.cs
+++ b/Library/Common/Addon/Grid.cs
@@ -19,7 +19,7 @@ namespace Milimoe.FunGame.Core.Library.Common.Addon
         /// 格子在地图中的y坐标
         /// </summary>
         public float Y { get; } = y;
-        
+
         /// <summary>
         /// 格子在地图中的z坐标
         /// </summary>
@@ -29,7 +29,7 @@ namespace Milimoe.FunGame.Core.Library.Common.Addon
         /// 是谁站在这格子上？
         /// </summary>
         public Dictionary<string, Character> Characters { get; set; } = [];
-        
+
         /// <summary>
         /// 此格子目前受到了什么影响？或者它有什么技能…
         /// </summary>
diff --git a/Service/MailManager.cs b/Service/MailManager.cs
index c6c46c9..370b73d 100644
--- a/Service/MailManager.cs
+++ b/Service/MailManager.cs
@@ -14,13 +14,13 @@ namespace Milimoe.FunGame.Core.Service
         /// 用于保存Smtp客户端
         /// 一个邮件服务对应一个Smtp客户端
         /// </summary>
-        internal static Dictionary<Guid, SmtpClient> SmtpClients { get; } = new();
+        internal static Dictionary<Guid, SmtpClient> SmtpClients { get; } = [];
 
         /// <summary>
         /// 用于保存邮件服务
         /// 允许服务器同时存在多个服务
         /// </summary>
-        internal static Dictionary<Guid, MailSender> MailSenders { get; } = new();
+        internal static Dictionary<Guid, MailSender> MailSenders { get; } = [];
 
         /// <summary>
         /// 获取某个已经保存过的邮件服务
diff --git a/Service/ModelManager.cs b/Service/ModelManager.cs
index ef69cc5..eab3a35 100644
--- a/Service/ModelManager.cs
+++ b/Service/ModelManager.cs
@@ -1,6 +1,5 @@
 using System.Collections;
 using System.Collections.Concurrent;
-using Milimoe.FunGame.Core.Entity;
 
 namespace Milimoe.FunGame.Core.Service
 {