For example, the key labelled "Backspace" typically produces code 8, "Tab" code 9, "Enter" or "Return" code 13 (though some keyboards might produce code 10 for "Enter").
例如标为“Backspace”的键通常产生编码8，“Tab”是编码9，“Enter”或“Return”是编码13（有些键盘上“Enter”可能是编码10）。