查看c# 版號的方法
參考來源: https://www.codeproject.com/Tips/865579/How-to-change-targeted-Csharp-version-in-Visual-St
參考來源: https://www.codeproject.com/Tips/865579/How-to-change-targeted-Csharp-version-in-Visual-St
By default following are corresponding version of C# compilers for Visual Studio:
- Visual Studio 2015: C# 6.0
- Visual Studio 2013: C# 5.0
- Visual Studio 2012: C# 5.0
- Visual Studio 2010: C# 4.0
- Visual Studio 2008: C# 3.0
- Visual Studio 2005: C# 2.0
- Visual Studio.NET 2003: C# 1.2
- Visual Studio.NET 2002: C# 1.0