它广泛用于机械加工测量，闭环数控，数字显示，8、4、2、1码数字量输出和控制信号输出等系统中。
It can be widely used in machine fabricating measuring, close-loop digital control, digital display, 8-4-2-1 digital readout and control signal output system.
针对伺服端程序码，网页左上方的下拉式清单会显示可撰写程序码的伺服器控制项。
For server code, the drop-down list at the top-left of the page displays the server controls for which you can write code.
显示程序码范例，示范如何在按键到达控制项之前加以拦截。
Presents a code example that shows how to intercept keys before they reach a control.
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