Laravel 5.1如何在刀片文件中使用{{old(")}帮助符用于无线电输入

I'm currently learning laravel and creating my first form. Everything is awesome until I want to use {{ old('') }} helper in my blade file for radio buttons. I'm not sure how to go about doing it properly, and I can't seem to find much info on here about it either.I'm currently learning laravel and creating my