新人如何学前端和后端

前端学习

https://www.bilibili.com/video/BV1Er4y1V7KA?p=11&vd_source=ebb68d03380daa99b449cd101b459921

后端学习 (PHP入门)

https://www.bilibili.com/video/BV1dW4y117hD?p=13&vd_source=ebb68d03380daa99b449cd101b459921

扩展知识

https://www.runoob.com/html/html5-intro.html