Merge Some Changes

Author: devlights

README.md

@@ -1,5 +1,5 @@
 # try-csharp
-This is my TUTORIAL project for csharp. (.NET Framework and Mono)
+This is my TUTORIAL project for csharp. (.NET Framework and Mono and dotnet core)
 
 # IDE
 - JetBrains Rider

TryCSharp.Common/TryCSharp.Common.csproj

@@ -12,7 +12,7 @@
     <AssemblyName>TryCSharp.Common</AssemblyName>
     <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <LangVersion>7.2</LangVersion>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

TryCSharp.DotNetCore2.Tutorial/TryCSharp.DotNetCore2.Tutorial.csproj

@@ -1,6 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
 </Project>

TryCSharp.Samples/TryCSharp.Samples.csproj

@@ -12,7 +12,7 @@
     <AssemblyName>TryCSharp.Samples</AssemblyName>
     <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <LangVersion>7.2</LangVersion>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>

TryCSharp.Tools.Cui/TryCSharp.Tools.Cui.csproj

@@ -12,7 +12,7 @@
     <AssemblyName>TryCSharp.Tools.Cui</AssemblyName>
     <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <LangVersion>7.2</LangVersion>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>