diff --git a/Masuit.Tools.Abstractions/Masuit.Tools.Abstractions.csproj b/Masuit.Tools.Abstractions/Masuit.Tools.Abstractions.csproj
index 3e12be1..011a33b 100644
--- a/Masuit.Tools.Abstractions/Masuit.Tools.Abstractions.csproj
+++ b/Masuit.Tools.Abstractions/Masuit.Tools.Abstractions.csproj
@@ -7,7 +7,7 @@
     <LangVersion>9.0</LangVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <CodeAnalysisRuleSet />
-    <Version>2.4.1.4</Version>
+    <Version>2.4.1.5</Version>
     <Authors>懒得勤快</Authors>
     <Description>Masuit.Tools基础公共库</Description>
     <Copyright>懒得勤快，长空X</Copyright>
@@ -20,9 +20,9 @@
     <RepositoryType>Github</RepositoryType>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
     <PackageRequireLicenseAcceptance>False</PackageRequireLicenseAcceptance>
-    <FileVersion>2.4.1.4</FileVersion>
+    <FileVersion>2.4.1.5</FileVersion>
     <Company>masuit.com</Company>
-    <AssemblyVersion>2.4.1.4</AssemblyVersion>
+    <AssemblyVersion>2.4.1.5</AssemblyVersion>
     <PackageLicenseUrl>https://github.com/ldqk/Masuit.Tools/blob/master/LICENSE</PackageLicenseUrl>
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
     <IncludeSymbols>true</IncludeSymbols>
diff --git a/Masuit.Tools.Core/Models/ITree.cs b/Masuit.Tools.Abstractions/Models/ITree.cs
similarity index 93%
rename from Masuit.Tools.Core/Models/ITree.cs
rename to Masuit.Tools.Abstractions/Models/ITree.cs
index 122d38c..0180f0c 100644
--- a/Masuit.Tools.Core/Models/ITree.cs
+++ b/Masuit.Tools.Abstractions/Models/ITree.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 
-namespace Masuit.Tools.Core.Models
+namespace Masuit.Tools.Models
 {
     /// <summary>
     /// 树形实体接口
diff --git a/Masuit.Tools.Core/Models/TreeExtensions.cs b/Masuit.Tools.Abstractions/Models/TreeExtensions.cs
similarity index 97%
rename from Masuit.Tools.Core/Models/TreeExtensions.cs
rename to Masuit.Tools.Abstractions/Models/TreeExtensions.cs
index 60307b2..eb53411 100644
--- a/Masuit.Tools.Core/Models/TreeExtensions.cs
+++ b/Masuit.Tools.Abstractions/Models/TreeExtensions.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 
-namespace Masuit.Tools.Core.Models
+namespace Masuit.Tools.Models
 {
     /// <summary>
     /// 树形数据扩展
@@ -80,9 +80,9 @@ namespace Masuit.Tools.Core.Models
         public static bool IsLeaf<T>(this ITree<T> tree) where T : ITree<T> => tree.Children.Count == 0;
 
         /// <summary>
-        /// 深度
+        /// 深度层级
         /// </summary>
-        public static int Level<T>(this ITree<T> tree) where T : ITree<T> => IsRoot(tree) ? 0 : Level(tree.Parent) + 1;
+        public static int Level<T>(this ITree<T> tree) where T : ITree<T> => IsRoot(tree) ? 1 : Level(tree.Parent) + 1;
 
         /// <summary>
         /// 节点路径（UNIX路径格式，以“/”分隔）
diff --git a/Masuit.Tools.Core/Masuit.Tools.Core.csproj b/Masuit.Tools.Core/Masuit.Tools.Core.csproj
index 6a317ff..64aa323 100644
--- a/Masuit.Tools.Core/Masuit.Tools.Core.csproj
+++ b/Masuit.Tools.Core/Masuit.Tools.Core.csproj
@@ -20,10 +20,10 @@
         <UserSecretsId>830c282f-f7c1-42be-8651-4cd06ac8e73f</UserSecretsId>
         <RepositoryType>Github</RepositoryType>
         <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-        <Version>2.4.1.4</Version>
-        <FileVersion>2.4.1.4</FileVersion>
+        <Version>2.4.1.5</Version>
+        <FileVersion>2.4.1.5</FileVersion>
         <Company>masuit.com</Company>
-        <AssemblyVersion>2.4.1.4</AssemblyVersion>
+        <AssemblyVersion>2.4.1.5</AssemblyVersion>
         <Authors>懒得勤快X</Authors>
         <RepositoryUrl>https://github.com/ldqk/Masuit.Tools</RepositoryUrl>
         <EmbedUntrackedSources>true</EmbedUntrackedSources>
@@ -201,6 +201,7 @@
         <Compile Include="..\Masuit.Tools.Abstractions\Models\IspInfo.cs">
             <Link>Models\IspInfo.cs</Link>
         </Compile>
+        <Compile Include="..\Masuit.Tools.Abstractions\Models\ITree.cs" Link="Models\ITree.cs" />
         <Compile Include="..\Masuit.Tools.Abstractions\Models\Location.cs">
             <Link>Models\Location.cs</Link>
         </Compile>
@@ -216,6 +217,7 @@
         <Compile Include="..\Masuit.Tools.Abstractions\Models\TaobaoIP.cs">
             <Link>Models\TaobaoIP.cs</Link>
         </Compile>
+        <Compile Include="..\Masuit.Tools.Abstractions\Models\TreeExtensions.cs" Link="Models\TreeExtensions.cs" />
         <Compile Include="..\Masuit.Tools.Abstractions\Net\FtpClient.cs">
             <Link>Net\FtpClient.cs</Link>
         </Compile>
diff --git a/Masuit.Tools/Masuit.Tools.csproj b/Masuit.Tools/Masuit.Tools.csproj
index 71aa14c..4616902 100644
--- a/Masuit.Tools/Masuit.Tools.csproj
+++ b/Masuit.Tools/Masuit.Tools.csproj
@@ -215,6 +215,9 @@
     <Compile Include="..\Masuit.Tools.Abstractions\Models\IspInfo.cs">
       <Link>Models\IspInfo.cs</Link>
     </Compile>
+    <Compile Include="..\Masuit.Tools.Abstractions\Models\ITree.cs">
+      <Link>Models\ITree.cs</Link>
+    </Compile>
     <Compile Include="..\Masuit.Tools.Abstractions\Models\Location.cs">
       <Link>Models\Location.cs</Link>
     </Compile>
@@ -230,6 +233,9 @@
     <Compile Include="..\Masuit.Tools.Abstractions\Models\TaobaoIP.cs">
       <Link>Models\TaobaoIP.cs</Link>
     </Compile>
+    <Compile Include="..\Masuit.Tools.Abstractions\Models\TreeExtensions.cs">
+      <Link>Models\TreeExtensions.cs</Link>
+    </Compile>
     <Compile Include="..\Masuit.Tools.Abstractions\Net\FtpClient.cs">
       <Link>Net\FtpClient.cs</Link>
     </Compile>
diff --git a/Masuit.Tools/Properties/AssemblyInfo.cs b/Masuit.Tools/Properties/AssemblyInfo.cs
index e578cef..434db1d 100644
Binary files a/Masuit.Tools/Properties/AssemblyInfo.cs and b/Masuit.Tools/Properties/AssemblyInfo.cs differ
diff --git a/Masuit.Tools/package.nuspec b/Masuit.Tools/package.nuspec
index e0a2b13..b1c5435 100644
--- a/Masuit.Tools/package.nuspec
+++ b/Masuit.Tools/package.nuspec
@@ -4,7 +4,7 @@
     <!--*-->
     <id>Masuit.Tools.Net</id>
     <!--*-->
-    <version>2.4.1.4</version>
+    <version>2.4.1.5</version>
     <title>Masuit.Tools</title>
     <!--*-->
     <authors>masuit.com</authors>
diff --git a/NetCoreTest/Program.cs b/NetCoreTest/Program.cs
index f7d1d1a..b1bed26 100644
--- a/NetCoreTest/Program.cs
+++ b/NetCoreTest/Program.cs
@@ -1,5 +1,5 @@
 using Masuit.Tools;
-using Masuit.Tools.Core.Models;
+using Masuit.Tools.Models;
 using Masuit.Tools.Reflection;
 using Masuit.Tools.Security;
 using Microsoft.AspNetCore;