turtle海龟作图

个人心得：python这么火是有他的原因的，突然发现他的语言很有趣，库函数也很多。

这次是第一步，简单了解了一下turtle函数

 1 import turtle
 2 import time
 3 
 4 def drawSnake(rad, angle, len,neckrad ):
 5     for i in range(len):
 6         turtle.circle(rad,angle)
 7         turtle.circle(-rad,angle)
 8     turtle.circle(rad,angle/2)
 9     turtle.fd(rad)
10     turtle.circle(neckrad+1, 180)
11     turtle.fd(rad/2*3)
12 def drakSnack_c(rad,len):
13     turtle.seth(0)
14     turtle.fd(rad)
15     turtle.seth(120)
16     turtle.fd(rad)
17     turtle.seth(240)
18     turtle.fd(rad)
19     turtle.fd(50)
20     turtle.circle(len*2)
21     
22 
23 def main():
24     turtle.setup(0.85,0.6,0,0)
25     pythonsize = 1
26     speed = 5
27     turtle.speed(speed)
28     turtle.pensize(pythonsize)
29     #turtle.pencolor("red")
30     #turtle.seth(-40)
31     #drawSnake(40,80,5,pythonsize/2)
32     getflower()
33     
34 def text():
35     turtle.write("hello world!",font=("Arial",23,"bold"))
36     time.sleep(2)
37     
38 def getflower():
39     turtle.bgpic("timg.gif")
40     turtle.color("red","yellow")
41     turtle.begin_fill();
42     for i in range(50):
43         turtle.fd(200)
44         turtle.left(170)
45     turtle.end_fill()
46     time.sleep(2)
47     
48     
49 main()