解决方法
当然,他们需要添加到源代码控件,.vcxproj是项目文件.报价
MSDN：
Project files no longer use the .vcproj file name extension. Visual
Studio automatically converts project files that were created by an
earlier release of Visual C++ to the format that is used by the
current system. For more information about how to manually upgrade a
project,see /Upgrade (devenv.exe).In the current release,the file name extension for a project file is
.vcxproj.
