diff --git a/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/MySqlTest.csproj b/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/MySqlTest.csproj
index c2b9b36c5..60f929097 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/MySqlTest.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/MySqlTest/MySqlTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/OracleTest/OracleTest.csproj b/Src/Asp.NetCore2/SqlSeverTest/OracleTest/OracleTest.csproj
index c3ab07542..debfbce04 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/OracleTest/OracleTest.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/OracleTest/OracleTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/PgSqlTest.csproj b/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/PgSqlTest.csproj
index c2b9b36c5..60f929097 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/PgSqlTest.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/PgSqlTest/PgSqlTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/SqlSeverTest.csproj b/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/SqlSeverTest.csproj
index dddc6bed0..9c1eff28a 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/SqlSeverTest.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSeverTest/SqlSeverTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugar.csproj b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugar.csproj
index d7c3841b8..460a23406 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugar.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugar.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <Version>5.0.3.5</Version>
     <Copyright>sun_kai_xuan</Copyright>
     <PackageProjectUrl>https://github.com/sunkaixuan/SqlSugar</PackageProjectUrl>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/SqliteTest.csproj b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/SqliteTest.csproj
index c2b9b36c5..60f929097 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/SqliteTest.csproj
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/SqliteTest.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest.sqlite b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest.sqlite
new file mode 100644
index 000000000..3bcc5cc87
Binary files /dev/null and b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest.sqlite differ
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest2.sqlite b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest2.sqlite
new file mode 100644
index 000000000..2826a654a
Binary files /dev/null and b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest2.sqlite differ
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest3.sqlite b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest3.sqlite
new file mode 100644
index 000000000..7fea14c31
Binary files /dev/null and b/Src/Asp.NetCore2/SqlSeverTest/SqliteTest/netcoreapp3.1/DataBase/SqlSugar4xTest3.sqlite differ