think python学习心得-（2）接口设计

来源：互联网发布：中国大国沙文主义知乎编辑：程序博客网时间：2024/04/29 21:32

TurtleWorld模块的下载与安装：

下载地址就是：http://thinkpython.com/swampy

安装方法把压缩包解压之后，用cmd cd到解压的安装目录下，运行：

python setup.py install

安装后就可以from swampy.TurtleWorld import *啦！

练习4.3

from swampy.TurtleWorld import *world = TurtleWorld()bob = Turtle()print bobdef square(t):    for i in range(4):        fd(t,100)        lt(t)    square(bob)wait_for_user()

from swampy.TurtleWorld import *world = TurtleWorld()bob = Turtle()print bobdef square(t,length):    for i in range(4):        fd(t,length)        lt(t)    square(bob,50)wait_for_user()

from swampy.TurtleWorld import *world = TurtleWorld()bob = Turtle()print bobdef square(t,length,n):    for i in range(n):        fd(t,length)        lt(t,360/n)    square(bob,50,6)wait_for_user()

太简单了不写了

直接用math包

画六边形：

from swampy.TurtleWorld import *world = TurtleWorld()bob = Turtle()def square(t,length,n):    for i in range(n):        fd(t,length)        lt(t,360/n)        for i in range(6):        square(bob,50,3)    lt(bob,60)wait_for_user()

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