要两步 不然 不行
Now, you may want to do this too.
Mark Changed But Unsaved File(这一步一定要钩 不然没用)
File>Settings>Editor>General>Editor Tabs> then checkMark modified tabs with asterisk>OK
Save One File with Ctrl+S(这个不一定要)
File>Settings>Keymap> search with save document > right clickSave Document>Add Keyboard Shortcut> press Ctrl+S>OK>Remove>OK
从这https://stackoverflow.com/questions/28946013/how-to-disable-auto-save-save-in-android-studio 学的