数据库结构更改，从主键删除了搜索路径。
Database structure change to remove search path from primary keys.
以深度优先搜索作为基本算法，用路径删除和结点删除方法产生多重解，用最小成本法求出最优解。
Based on depth first search, the article USES route deletion and node deletion methods to produce multi-solutions, and then determine the optimum solution with least costing.
应用推荐