Teacher, your display has 75 chapters, but you can only see 20 chapters while studying. Is there a charge for the others or what?
is 20 chapters, 75 is the number of courses, you misunderstood
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
is 20 chapters, 75 is the number of courses, you misunderstood