使用动态规划算法（DP）对并联混合动力汽车P2极限油耗求解，并附带后处理程序，通过使用hev_main.m程序直接可运行(The dynamic programming algorithm (DP) is used to solve the P2 limit fuel consumption of the parallel hybrid electric vehicle, with a post-processing program, which can be run directly by u