问题
I started to play with Sublime Text 2 editor and it seems to be pretty cool, but there is one thing that makes me a little bit confused.
When I open a project and then I will open the files which I need to update, these files are not displayed in tabs in the top bar, as is shown in the screenshot?
How could I display them?

回答1:
Have you actually opened the file (i.e. double clicked it from the sidebar) or are you just viewing the file preview, which by design, doesn't appear as a tab in the main window.
回答2:
You can view the tabs by opening the command pallet by typing CTRL + P (windows) or Command + Shift + p (Mac) and typing "View: Toggle Tabs" This toggles the file tabs.
回答3:
I have the same issue , I tried every thing but the open files are not showing
on the top of SUBLINE EDITOR , I double click each file but just show
on left side base not on top of SUBLINE as tab.
来源:https://stackoverflow.com/questions/13670946/sublime-text-2-missing-tabs-of-currently-opened