建立一个BP网络，学习如何运用网络工具箱函数根据借贷申请人的月收入，生活费用支出，房租水电交通费支出，实时分析这一贷款申请是否合格，如合格即批准给予借贷，否则不予以借贷。-establish a network, learning how to use the network toolbox under the lending function of the applicant's income, cost of living expenses, rent utilities trans