簡單畫出一朵帶有花瓣的花

# -*- coding:utf-8 -*-
import turtle
# create window and turtle
window = turtle.Screen()
babbage = turtle.Turtle()
# draw stem and centre
# draw stem
babbage.color('green', 'black')
babbage.left(90)
babbage.forward(100)
babbage.right(90)
# draw centre
babbage.color('black', 'black')
babbage.begin_fill()
babbage.circle(10)
babbage.end_fill()
# draw all petals
for i in range(1, 24):
 if babbage.color() == ('red', 'black'):
 babbage.color('orange', 'black')
 elif babbage.color() == ('orange', 'black'):
 babbage.color('yellow', 'black')
 else:
 babbage.color('red', 'black')
 babbage.left(15)
 babbage.forward(50)
 babbage.left(157)
 babbage.forward(50)
# hide the turtle
babbage.hideturtle()
# tidy up window
window.exitonclick()