TurtleWorld

最新推荐文章于 2022-11-15 20:07:46 发布

原创最新推荐文章于 2022-11-15 20:07:46 发布 · 636 阅读

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本文通过使用Python编程语言和swampy.TurtleWorld模块来绘制简单的几何图形，如正方形、八边形和多边形等。介绍了如何定义函数来重复绘制过程，并进一步扩展到绘制圆形，展示了基本的绘图技巧和技术。

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1、画线

       1 #!/usr/bin/python
       2 from swampy.TurtleWorld import *
       3 
       4 world = TurtleWorld()
       5 bob = Turtle()
       6 print bob
       7 
       8 for i in range(4):
       9     fd(bob,100)
      10     lt(bob)
      11 
      12 for i in range(4):
      13     print('Hello')
      14 
      15 wait_for_user()

输出：

       1 #!/usr/bin/python
       2 from swampy.TurtleWorld import *
       3 
       4 world = TurtleWorld()
       5 bob = Turtle()
       6 print bob
       7 
       8 def draw_square(Tt,length):
       9     fd(Tt,length)
      10     lt(Tt)
      11 
      12 for i in range(4):
      13     draw_square(bob,100)

       1 #!/usr/bin/python
       2 from swampy.TurtleWorld import *
       3 
       4 world = TurtleWorld()
       5 bob = Turtle()
       6 print bob
       7 # the functions lt and rt make 90-degree turns by default.
       8 # lt(bob,45) turns bob 45 degrees to the left
       9 def draw_eight_sides(Tt,length):
      10     fd(Tt,length)
      11     lt(Tt,45)
      12 
      13 for i in range(8):
      14     draw_eight_sides(bob,60)

       1 #!/usr/bin/python
       2 from swampy.TurtleWorld import *
       3 
       4 world = TurtleWorld()
       5 bob = Turtle()
       6 print bob
       7 # the functions lt and rt make 90-degree turns by default.
       8 # lt(bob,45) turns bob 45 degrees to the left
       9 def draw_polygon(Tt,length,n):
      10     fd(Tt,length)
      11     lt(Tt,360/n)
      12 
      13 for i in range(6):
      14     draw_polygon(bob,60,6)

       1 #!/usr/bin/python
       2 from swampy.TurtleWorld import *
       3 
       4 world = TurtleWorld()
       5 bob = Turtle()
       6 print bob
       7 # the functions lt and rt make 90-degree turns by default.
       8 # lt(bob,45) turns bob 45 degrees to the left
       9 def draw_polygon(Tt,length,n):
      10     angle = 360/n
      11     for i in range(n):
      12         fd(Tt,length)
      13         lt(Tt,angle)
      14 
      15 draw_polygon(bob,60,6)

       1 #!/usr/bin/python
       2 from swampy.TurtleWorld import *
       3 import math
       4 world = TurtleWorld()
       5 bob = Turtle()
       6 print bob
       7 # the functions lt and rt make 90-degree turns by default.
       8 # lt(bob,45) turns bob 45 degrees to the left
       9 def polygon(t,length,n):
      10     angle = 360/n
      11     for i in range(n):
      12         fd(t,length)
      13         lt(t,angle)
      14 def draw_circle(Tt,r):
      15     circumference = 2 * math.pi * r
      16     n = 100
      17     length = circumference/n
      18     polygon(Tt,length,n)
      19 
      20 draw_circle(bob,50)

输出：