中文说明：实现DV-Hop定位算法的仿真，自动生成一定节点数的随即分布图，给出仿真结果的各点定位误差，用曲线图形显示，并可以计算平均误差。
English Description：
The simulation of DV hop localization algorithm is realized. The random distribution map of a certain number of nodes is automatically generated. The positioning error of each point in the simulation result is given, and the average error can be calculated.