We solved the multi-objective optimizing model using the NSGA-II, AMGA and NCGA belong to the direct method and the main objective method and the linear weighted sum method belong to the indirect method, and compared the optimizing effect of each optimizing method. 本文选取直接解法中的NSGA-II、AMGA和NCGA算法以及间接解法中的主要目标法和线性加权和法求解所建立的多目标优化模型,并对各种优化方法的优化效果进行了分析比较。