VSC only runs Go code from $GOPATH - why? How to run any open script by Ctrl+F5?

Question

go

Given:
Visual Studio Code as an IDE for working with Golang.
Created GOPATH = D:\_PROJECTS\Golang projects in environment variables
Created test.go in D:\_PROJECTS\Golang projects folder.
Opened it in VSC, edited this "Hello world". Launched from the Windows console.

Then I read that you need to create three folders: src, bin, pkg
There are three folders in the D:\_PROJECTS\Golang projects\ folder: src, bin, pkg.
I copied my test.go to the folder I created test.go in the D:\_PROJECTS\Golang projects\src folder and already opened it in VCS and edited it.
But Ctrl+F5 still starts the old file Created test.go in the D:\_PROJECTS\Golang projects\test.go folder because, as I understand it, VSC looks at the GOPATH variable. Not the currently open go script.

It turns out for each program/project on go I need to fence my GOPATH like D:\_PROJECTS\Golang projects\project1\
D:\_PROJECTS\Golang projects\project2\
D:\_PROJECTS\Golang projects\project3\ and so on ? Is this idiotic?

Question:
How can I run the currently open go script using F5/Ctrl+F5 in VSC?

Answer 1

1. GOPATH is always the same and it used to be customary to create all projects in different subfolders inside it.
2. Now another system (go modules) has been adopted for a long time Read from here