cxinv/app/admin/model/Track.php

<?php
declare (strict_types = 1);

namespace app\admin\model;

use think\Model;use think\model\concern\SoftDelete;

/**
 * @mixin \think\Model
 */
class Track extends Model
{
	use SoftDelete;
	protected $createTime="create_time";
	protected $updateTime="update_time";
	protected $deleteTime= "delete_time";
	
    public function fhdChild(){
        return $this->belongsTo(FhdChild::class,"outChildCode","outChildCode");
    }
}