'int', 'userid' => 'int', 'articleid' => 'int', 'createtime' => 'int' ]; // 设置字段自动转换类型 protected $type = [ 'createtime' => 'timestamp:Y-m-d H:i:s' ]; // 关联Article public function article() { return $this->hasOne(Article::class, "id", "articleid"); } // 关联User public function user() { return $this->hasOne(User::class, "id", "userid"); } }