Note:通过模拟量输入口LINE_IN输入电压值，以8K的采样率经A/D //转换后送给IOB口控制LED点亮,同时可以根据LED的点亮来了解转换 //的数据-Note : Analog inputs LINE_IN input voltage value to 8K by the sampling rate A / D / / conversion gave Privalov population control LED lights, LED can be lit to understan