用MA化裙程序演示了点电荷系所激发电场的等势面，并且讨论了电荷对称分布情况下，点电荷系的等势面及电场分布的特点(The equivalent potential surface of the electric field excited by point charge system is demonstrated by using MA skirt program, and the equipotential surface and the electric field distribution characteristics of point charge system are discussed under the condition of symmetrical charge distribution.)