《Think Python》笔记1

《Think Python : How to think like a computer scientist》是一本很不错的入门书。它的例子也很好玩。作者写的TurtleWorld很有意思。分享一下。

from swampy.TurtleWorld import *

def square(t,length):
   for i in range(4):
        fd(t,length)
        lt(t)
    
world = TurtleWorld()
bob = Turtle()

for i in range(10,200,10):
    square(bob,i)


wait_for_user()

fd():前进

lt():左转