importrandomimportreimporttimefromfeapder.db.mysqldbimportMysqlDBimportfeapderdefis_number(string):pattern=re.compile(r'^[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?$')returnbool(pattern.match(string))classAirSpiderDemo(feapder.Ai