一个基于贪婪算法和分治算法以及回溯法的一个大型IT职业培训机构（湖北银河学院）的排课系统，采用AJAX+Mysql！！,A greedy algorithm based on the algorithm and sub-administration, as well as a large-scale retrospective law IT vocational training institutions (Institute of Hubei Galaxy) the Course Schedu