本程序通过检测工件的中线点相对于尔曹的距离，及尔曹相对于中心线的距离，求解出偏角，从而得到工件位置是否摆放正确。-This program through the detection of the workpiece center line point for Ercao distance and Ercao relative to the centerline distance, solve the declination, which workpiece position is placed