====关键技术====
[[File:logo.PNG|200px100px|thumb|right]]#Logo language [http://baike.baidu.com/subview/324525/324525.htmhtml] [https://en.wikipeda.org/wiki/Logo_(programming_language)]
#Netlogo[http://baike.baidu.com/linkurl=cpoIAhJB7WBePfarxOE3yw5svgqn23vUBvq5a25Wqq_D7k6WykaO47S9mU_n09Psn2NbkvSib6-_FZwUfGoMGa]
#Turtle graphics [https://en.wikipedia.org/wiki/Turtle_graphics][[:File:turtle.PNG]]