Enable Go-mode in the Sr-speedbar of Emacs

Sr-speedbar uses Speedbar's file retrieval functionality, but Emacs24 's speedbar does not support go file previews, which is one way to enable Speedbar in Go-mode:

1, press F10 to start the menu bar

2,options, Customize Emacs, specific Option

3, enter the variable you want to modify Speedbar-supported-extension-expressions

4, you can see the file types supported by Speedbar:

5, click the bottom of the INS button to add the. go extension.

6, click "Apply and Save" button, save.

Enable Go-mode in the Sr-speedbar of Emacs