中文说明：使用数据包络分析和遗传算法按上市公司的基本面数据进行选股分析。基因算法用于选择基本面指标，数据包络分析对股票进行效率评分。
English Description：
Data envelopment analysis (DEA) and genetic algorithm (GA) are used to analyze the stock selection according to the basic data of listed companies. Genetic algorithm is used to select fundamental indicators, and DEA is used to evaluate the efficiency of stocks.