运用snmp协议编程，迅速查找所在子网及相邻子网的网络拓扑结构，采用优化算法，速度快-use snmp programming agreement quickly identify where subnetworks and the adjacent subnet the network topology, using optimization algorithms, faster

实现课表的排序,利用优化后的拓扑结构使课表按先修后修进行分学期的排序.-The achievement of curriculum sequencing, using the optimized topology by prevocational curriculum so that after the repair carried out at the sort semester.