动态web表单 写入数据库失败
从json字符串[{"name":"1","price":"2","seller":"3","seller_info":"4","brand":"5","size":"6","quantity":"7"},{"name":"1","price":"2","seller":"3","seller_info":"4","brand":"5","size":"6","quantity":"7"}]到了(1,2,3,4,5,6,7)(1,2,3,4,5,6,7)。
但是在写入数据库的时候失败了。