Question

我使用命令行手动调用C＃编译器，以编译C＃源文件。但是，该编译仍坚持使用C＃5。我使用VS2017的路径访问它，因此我希望它也可以在更高版本的C＃上使用。设置/langversion属性似乎无法解决问题。

有帮助吗？

PS C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\Roslyn> csc
Microsoft (R) Visual C# Compiler version 4.7.2558.0 for C# 5
Copyright (C) Microsoft Corporation. All rights reserved.

This compiler is provided as part of the Microsoft (R) .NET Framework, but only supports language versions up to C# 5, which is no longer the latest version. For compilers that support newer versions of the C# programming language, see http://go.microsoft.com/fwlink/?LinkID=533240

warning CS2008: No source files specified error CS1562: Outputs without source must have the /out option specified

..，但仅支持C＃5以下的语言版本

Answer 1

您的Visual Studio安装或Build Tools安装已过期。

使用当前版本15.8.6，您应该获得以下输出：

PS C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Roslyn> .\csc
Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)
Copyright (C) Microsoft Corporation. All rights reserved.

warning CS2008: No source files specified.
error CS1562: Outputs without source must have the /out option specified

如何使命令行C＃编译器适用于C＃版本> 5？

1 个答案: