laravel ORM 只开启created_at的几种方法总结

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            方法一：
class User extends Model {
  public $timestamps = false;//关闭自动维护
  public static function boot() {
    parent::boot();
    #只添加created_at不添加updated_at
    static::creating(function ($model) {
      $model->created_at = $model->freshTimestamp();
      //$model->updated_at = $model->freshTimeStamp();
    });
  }
}