.tsp文件读入，模拟退火算法函数接口，测试文件，运行结果全在里面了
Simulated annealing is a greedy algorithm, but its search process introduces a random factor. Simulated annealing algorithm with a certain probability to accept a solution than the current solution, it is possible to jump out of local optimal solution to achieve the overall optimal solution.
Simulated annealing (SA) is a method for solving unconstrained and bound-constrained optimization problems. The method models the physical process of heating a material and then slowly lowering the temperature to decrease defects, thus minimizing the system energy.
