中文说明：无标度网络生成程序。改程序可生成无标度的复杂网络，且很好展示了无标度网络的生成机理，对于初学者帮助很大。
English Description：
Scale free network generator. The modified program can generate scale-free complex network, and show the generation mechanism of scale-free network, which is very helpful for beginners.