案例4\案例4\BP.m .....\.....\Code.m .....\.....\Cross.m .....\.....\data.m .....\.....\data.mat .....\.....\fun.m .....\.....\Genetic.m .....\.....\Mutation.m .....\.....\net.mat .....\.....\Select.m .....\.....\test.asv .....\.....\test.m .....\案例4 案例4