modify

Author: JeffreySu

src/Senparc.CO2NET/Senparc.CO2NET.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <TargetFrameworks>net451;netstandard2.0;netstandard2.1</TargetFrameworks>
     <Version>2.0</Version>
-    <!--<LangVersion>8.0</LangVersion>-->
+    <LangVersion>8.0</LangVersion>
     <AssemblyName>Senparc.CO2NET</AssemblyName>
     <RootNamespace>Senparc.CO2NET</RootNamespace>
     <GeneratePackageOnBuild Condition=" '$(Configuration)' == 'Release' ">true</GeneratePackageOnBuild>