输入平面上直线上采样的两个点坐标，求解直线方程。可方便得到一次方程-importation plane straight on the two sampling points coordinates and solving linear equations. Linear equation can be convenient

初学者可往下看本例程的原理： 1、依次获得取样点的颜色 2、在取样点画该颜色的方框 取样越精，方框越小，图像就越清晰 -Beginners can look down the principles of this routine: 1, followed by access to the color of sampling points 2, stipple the colors in the sampling of the more refined sampling box,

this file when is running in a compter saves voice by discretizing and sampling of voice signal.

AD8200芯片，是用以电流采集反馈的，精度值非常高，可以双向采样，价钱便宜,AD8200 chip, is used to the current collecting feedback, very high accuracy, can be two-way sampling, cheap