diff --git a/WsNovelParser/WsNovelParser.vcxproj b/WsNovelParser/WsNovelParser.vcxproj
index 6daa1f1..6f6d3e1 100644
--- a/WsNovelParser/WsNovelParser.vcxproj
+++ b/WsNovelParser/WsNovelParser.vcxproj
@@ -70,6 +70,10 @@
     <Link>
       <AdditionalDependencies>libToken.lib;libSyntax.lib;libParse.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+      <AdditionalOptions>/Zc:char8_t- %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
     <ClCompile>
diff --git a/WsNovelParser/WsNovelParser.vcxproj.user b/WsNovelParser/WsNovelParser.vcxproj.user
index 854e739..426158d 100644
--- a/WsNovelParser/WsNovelParser.vcxproj.user
+++ b/WsNovelParser/WsNovelParser.vcxproj.user
@@ -6,9 +6,9 @@
     <LocalDebuggerCommandArguments>-path "D:\手作小说\科学+修仙+创造世界"</LocalDebuggerCommandArguments>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:44.1342154Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:32.6605111Z</QtLastBackgroundBuild>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:44.5012357Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:33.1337581Z</QtLastBackgroundBuild>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/libParse/libParse.vcxproj b/libParse/libParse.vcxproj
index d0287d1..c491c08 100644
--- a/libParse/libParse.vcxproj
+++ b/libParse/libParse.vcxproj
@@ -70,6 +70,10 @@
     <Link>
       <AdditionalDependencies>libToken.lib;libSyntax.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+      <AdditionalOptions>/Zc:char8_t- %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
     <ClCompile>
diff --git a/libParse/libParse.vcxproj.user b/libParse/libParse.vcxproj.user
index bd0d99d..16415b4 100644
--- a/libParse/libParse.vcxproj.user
+++ b/libParse/libParse.vcxproj.user
@@ -5,9 +5,9 @@
     <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:47.7605591Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:33.2823298Z</QtLastBackgroundBuild>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:47.9767101Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:33.6222876Z</QtLastBackgroundBuild>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/libSyntax/libSyntax.vcxproj b/libSyntax/libSyntax.vcxproj
index cb2b474..777fe19 100644
--- a/libSyntax/libSyntax.vcxproj
+++ b/libSyntax/libSyntax.vcxproj
@@ -70,6 +70,10 @@
     <Link>
       <AdditionalDependencies>libToken.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+      <AdditionalOptions>/Zc:char8_t- %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
     <ClCompile>
diff --git a/libSyntax/libSyntax.vcxproj.user b/libSyntax/libSyntax.vcxproj.user
index 63be189..189fb24 100644
--- a/libSyntax/libSyntax.vcxproj.user
+++ b/libSyntax/libSyntax.vcxproj.user
@@ -5,9 +5,9 @@
     <DebuggerFlavor>WindowsLocalDebugger</DebuggerFlavor>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:47.3997896Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:34.6336566Z</QtLastBackgroundBuild>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:47.5416879Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:34.9107584Z</QtLastBackgroundBuild>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/libToken/libToken.vcxproj b/libToken/libToken.vcxproj
index e50345c..b37c693 100644
--- a/libToken/libToken.vcxproj
+++ b/libToken/libToken.vcxproj
@@ -20,7 +20,7 @@
     <ProjectGuid>{DAB406C7-174A-47C3-893C-343079396350}</ProjectGuid>
     <Keyword>QtVS_v304</Keyword>
     <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">10.0</WindowsTargetPlatformVersion>
-    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">10.0.22621.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">10.0</WindowsTargetPlatformVersion>
     <QtMsBuild Condition="'$(QtMsBuild)'=='' OR !Exists('$(QtMsBuild)\qt.targets')">$(MSBuildProjectDirectory)\QtMsBuild</QtMsBuild>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -64,6 +64,17 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
   </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <LanguageStandard>stdcpp20</LanguageStandard>
+      <AdditionalOptions>/Zc:char8_t- %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+  </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
     <ClCompile>
       <TreatWChar_tAsBuiltInType>true</TreatWChar_tAsBuiltInType>
diff --git a/libToken/libToken.vcxproj.user b/libToken/libToken.vcxproj.user
index b7fb4f7..f18bd27 100644
--- a/libToken/libToken.vcxproj.user
+++ b/libToken/libToken.vcxproj.user
@@ -2,9 +2,9 @@
 <Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup />
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:46.3016809Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:33.9936644Z</QtLastBackgroundBuild>
   </PropertyGroup>
   <PropertyGroup Label="QtSettings" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <QtLastBackgroundBuild>2024-05-04T13:29:46.7433247Z</QtLastBackgroundBuild>
+    <QtLastBackgroundBuild>2024-05-14T14:19:34.4248584Z</QtLastBackgroundBuild>
   </PropertyGroup>
 </Project>
\ No newline at end of file