Assigned to each key on a keyboard is a unique value called a scan code, a device-dependent identifier for the key on the keyboard.
中文翻译：键盘上的键都分配有一个独一无二的扫描码，即和设备相关的标识符。
Assigned to each key on a keyboard is a unique value called a scan code, a device-dependent identifier for the key on the keyboard.
中文翻译：键盘上的键都分配有一个独一无二的扫描码，即和设备相关的标识符。
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