说明：  从服务器ftp下载指定的文件到本机，然后对文件数据进行解析并把解析的数据输出到excel，然后从数据库中提取对应的数据进行核对
(Ftp from the server specified file to the local, and then parse the data file and to parse the data output to excel, and then extracted from the database to check the corresponding data)