遗传算法的参数中，交叉概率Pc和变异概率Pm的选择是影响遗传算法行为和性能的关键所在，直接影响着算法的收敛性。-The parameters of the genetic algorithm, the crossover probability and mutation probability of Pc Pm choice is influence behavior performance of genetic algorithm and the key, the direct impact on the convergence of the algorithm