由于上面没有LINGO类型，所以以VC++代替，实际是LINGO程序，希望理解，主要解决TSP问题，程序已经调试通过，并添加了详细的注释-As above, there is no LINGO type, so as to VC++ instead of the actual procedure is LINGO, want to understand, the main problem to solve TSP, the program has been debugged, and added