虚拟技术是提高课堂教学质量与效率的重要手段。本文结合《单片机原理及应用》课程中交通灯设计的实际 案例，对虚拟技术在课程教学中应用作了分析和提出了教学建议。

Virtual technology is the important means to improve classroom teaching quality and efficiency. By introducing the actual case of traffic light design in SCM teaching, the application of virtual technology in teaching is analyzed and some advices for teaching are proposed.