Download the website source code, how to enter the background?

There should be an admin folder under the file directory of the website, which is the folder for storing files managed in the background. See if there are any index files in it. If yes, you can enter the address of this file in the IE address bar to access it. Another method is to put the background login file in the first-level directory, and you can check whether there is a file named login. If there is, this is it.