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

import turtle
import time

def drawSnake(rad, angle, len,neckrad ):
    for i in range(len):
        turtle.circle(rad,angle)
        turtle.circle(-rad,angle)
    turtle.circle(rad,angle/2)
    turtle.fd(rad)
    turtle.circle(neckrad+1, 180)
    turtle.fd(rad/2*3)
def drakSnack_c(rad,len):
    turtle.seth(0)
    turtle.fd(rad)
    turtle.seth(120)
    turtle.fd(rad)
    turtle.seth(240)
    turtle.fd(rad)
    turtle.fd(50)
    turtle.circle(len*2)
    

def main():
    turtle.setup(0.85,0.6,0,0)
    pythonsize = 1
    speed = 5
    turtle.speed(speed)
    turtle.pensize(pythonsize)
    #turtle.pencolor("red")
    #turtle.seth(-40)
    #drawSnake(40,80,5,pythonsize/2)
    getflower()
    
def text():
    turtle.write("hello world!",font=("Arial",23,"bold"))
    time.sleep(2)
    
def getflower():
    turtle.bgpic("timg.gif")
    turtle.color("red","yellow")
    turtle.begin_fill();
    for i in range(50):
        turtle.fd(200)
        turtle.left(170)
    turtle.end_fill()
    time.sleep(2)
    
    
main()