循环显示8个通道的电压值状态，当进行一次测量后，将显示每一通道的A/D转换值，每个通道的数据显示时间在1s左右。主程序在调用显示子程序与测量子程序之间循环。-Cycle showed that the 8-channel voltage, and when, after a measurement, each channel will show the A/D conversion value of the data for each channel time in about 1s. Call