Input Device
键盘检测
逐个按键确认是否识别，再同时按多个键测试多键输入。
实际按键次数0
系统自动重复0
不同按键数0
最大同时按键数0
Common ANSI-style layout. Korean 106-key and other regional keyboards may have extra or differently shaped keys.
仅在需要时查看 · 左右键 / Fn 帮助
Left/right Shift/Ctrl/Alt/Win direct identification is kept separate internally from assisted inference. If one side is not identified, press the matching opposite-side key once first and try again.
这里检查的是 Fn 组合结果，不是 Fn 键本身。对同一个物理按键分别在不按 Fn 和按住 Fn 时各按一次。浏览器看不到差异并不代表键盘故障。
请按下按键。