Teacher, I don’t understand the three design patterns you talked about. Where should I look for information?
If you have not fully mastered the basics of PHP language, you are not suitable for learning design patterns
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
If you have not fully mastered the basics of PHP language, you are not suitable for learning design patterns