异常处理：
错误代码：1452
Cannot add or update a child row: a foreign key constraint fails (`1go`.`#sql-16ec_1f`, CONSTRAINT `fk_999` FOREIGN KEY (`goods_id`) REFERENCES `goods` (`id`) ON DELETE CASCADE ON UPDATE CASCADE)Cannot add or update a chil
阅读背景：
Cannot add or update a child row 数据库错误
来源：互联网
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