回溯法解决TSP问题，对于任何的无向图，只要存在回路均可找到，无回路也可检测出来！-Backtracking to solve TSP problem, for any undirected graph, loop as long as there can be found, no loop can be detected!

The TSP problem - 旅行商问题，回溯，分支界限法解决-The TSP problem- traveling salesman problem, backtracking, branch-and-bound method to solve

旅行商问题（Traveling Saleman Problem，TSP）又译为旅行推销员问题、货郎担问题，简称为TSP问题，是最基本的路线问题，该问题是在寻求单一旅行者由起点出发，通过所有给定的需求点之后，最后再回到原点的最小路径成本。采用回溯法，邻点法实现，有图形界面。-TSP (Traveling Saleman Problem, TSP) also translated as traveling salesman problem, traveling salesman problem, r