说明：  本程序为实验性程序，验证了平面上到多点距离之和等于定长的点的轨迹，是未加权的无线传感器网络的仿真原型程序，并附实验报告。
(This procedure for the experimental procedures, to verify the plane to multi-point distance and the point equivalent to fixed-length track is unweighted wireless sensor network prototype simulation program, together with the experimental report.)