网络教学虽然把学习过程留给学生自主安排，但也要达到让学生系统学习知识的目的．因此，课程设置仍然是网络教育一项重要的任务．传统的课程设置以人工为主，工作效率低．通过对顶点活动网的拓扑排序算法分析，在原有排序结果不稳定的基础上，增加了学时数限制条件，提出了一种适合网络教学的课程设置方案．%In spite of making students themselves arrange learning process during onhne education, its also en- able students to acquire knowledge systemly. So an important task for online education is to set the course. The tra- ditional course was setted by manual -acting in the past, so it＇s very inefficiency. Through the analysis of topological sort algorithm based on activity on vertex network, we put forward a kind of new method to update the old＇ s by u- sing a constraint condition. This method can effectively improve the work for educational department.
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