【摘要】 本文主要总结了新冠疫情期间作者的“电磁场理论”课程在线教学经验。对比分析了录播和直播的优缺点后，选择录播教学方式。基于超星网络教学平台，展示了录播网络教学的具体措施，包括网上答疑和学习效果检查以及在线批改作业等。给出了网络教学可以为线下教学继续使用的方法和手段，为疫情结束后的正常教学提供了新的网络教学补充措施。更多还原

【Abstract】 This paper mainly summarizes the author′s online teaching experience of Electromagnetic Field Theory course during COVID-19. After comparing and analyzing the advantages and disadvantages of recorded and live broadcasts,the teaching method of recorded broadcast is selected. Based on the chaoxing network teaching platform,this paper shows the specific measures of recorded broadcast network teaching,including online question-answering,learning effect checking and online correcting homework,etc. It gives the methods and means that network teaching can continue to be used for offline teaching,which provides new network teaching supplementary measures for normal teaching after the epidemic.更多还原