keyboardistn.键盘乐器演奏者keyboardn.键盘v.用键盘输入keyboard subsystem[计] 键盘子系统keyboard interrupt键盘中断keyboard character键盘字符keyboard processor键盘处理器keyboard traversal键盘遍历keyboard selection键盘选择keyboard lock flag键盘锁定标志keyboard interface键盘接口keyboard edit deys键盘编辑键keyboard shortcuts快捷键