结合精英保留和轮盘赌、两两竞争法的几种选择算子和单点交叉算子与改进交叉算子分别对函数最小值求解，通过仿真计算相应的平均最小值，平均运行时间等统计值，并比较优差。-Combine elitist and roulette, several pairwise competition law selection operator and a single point of crossover with improved crossover for solving the minimum function respectively, calculate the corresponding average minimum, average running time statistical simulation value and comparative advantage poor.