contrast_ai/app/model/TaskList.php

<?php

namespace app\model;

use think\Model;

class TaskList extends Model
{
    public function audios(){
         return $this->hasOne(AudioList::class,'id','audio');
    }
    public function backs(){
        return $this->hasOne(BackList::class,'id','back');
    }
    public function roles(){
        return $this->hasOne(RoleList::class,'id','role');
    }
}