public function gun(){
Db::startTrans();
try{
$where['id']=1;
$data1['a1']=5;
Db::table('qgs_a1')->where($where)->update($data1);
exception('异常消息', 100006);
$where2['id']=1;
$data2['a2']=5;
Db::table('qgs_a2')->where($where2)->update($data2);
Db::commit();
} catch (\Exception $e) {
echo "ccc";
// 回滚事务
Db::rollback();
}
}无法回滚，qgs_a1里面的a1还是等于5 最佳答案
