====关键技术====
#Logo language [http://baike.baidu.com/subview/324525/324525.htm] [https://en.wikipedia.org/wiki/Logo_(programming_language)][[File:logo.PNG|400px|thumright]]
#Netlogo[http://baike.baidu.com/linkurl=cpoIAhJB7WBePfarxOE3yw5svgqn23vUBvq5a25Wqq_D7k6WykaO47S9mU_n09Psn2NbkvSib6-_FZwUfGoMGa]
#Turtle graphics [https://en.wikipedia.org/wiki/Turtle_graphics][[:File:turtle.PNG]]