提示與訣竅 Determine which version of GNOME is running — How to determine which version of GNOME is running. Enter special characters — Type characters not found on your keyboard, including foreign alphabets, mathematical symbols, emoji, and dingbats. Middle-click — Use the middle mouse button to open applications, open tabs and more. 實用的鍵盤捷徑鍵 — Get around the desktop using the keyboard. 螢幕快照與螢幕錄影 — Take a picture or record a video of what is happening on your screen. 更多資訊 GNOME 求助 — 提供給 GNOME 使用者的指南。