Questions about ThinkPHP framework

Questions about ThinkPHP framework 1. I read the development manual roughly, but the directory structure of the project is still unclear. 2. I always encounter file permissions in Linux, I want to teach you how to deal with this problem, because I have never dealt with this problem before and have no experience. now I am confused. The second question may not be very relevant to the framework itself. I will ask it one by one, 1. Questions about TinkP's ThinkPHP framework
1. I read the development manual roughly, but the directory structure of the project is still unclear.
2. in Linux, there is always a problem with File permissions. I want to teach you how to handle this problem, because I have never handled this problem before and have no experience. now I am confused.

The second question may not have much to do with the framework itself.

------ Solution --------------------
1. detailed code of the TinkPHP multi-function project instance
2. in Linux: chmod 0777 [/usr/path/projectname/*]
------ Solution --------------------
1: Continue reading
2: Change directory permissions