说明：  在数学建模比赛中要获得好的分数，最好都要进行灵敏度分析。本文件中包含详细的matlab灵敏度分析程序，只要通过修改相关参数即可。
(In mathematical modeling competition to get a good score, the best sensitivity analysis should be carried out. This document contains a detailed sensitivity analysis matlab program, simply by modifying the relevant parameters.)