条件循环函数定义 练习

Posted 137陈楚洪

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1.画五角星

>>> import turtle
>>> turtle.bgcolor(\'pink\')
>>> turtle.color(\'yellow\')
>>> turtle.fillcolor(\'yellow\')
>>> turtle.up()
>>> turtle.goto(0,-20)

>>> turtle.down()
>>> turtle.begin_fill()
>>> for i in range(5):
turtle.forward(200)
turtle.left(144)

>>> turtle.end_fill()

2.画同心圆

>>> import turtle
>>> turtle.bgcolor(\'pink\')
>>> turtle.color(\'yellow\')

>>> turtle.fillcolor(\'green\')
>>> turtle.up()
>>> turtle.goto(0,-20)

>>> turtle.down()
>>> for i in range(5):
turtle.up()
turtle.goto(0,-20*(i+1))
turtle.down()
turtle.circle(20*(i+1))

>>> turtle.end_fill()

 

3.画太阳花

>>> import turtle
>>> turtle.color(\'pink\')
>>> turtle.bgcolor(\'green\')
>>> turtle.fillcolor(\'yellow\')
>>> turtle.begin_fill()

>>> while True:
turtle.forward(200)
turtle.left(170)
if(abs(turtle.pos()))<1:
break

>>> turtle.end_fill()

 

4.画五个五角星

>>> import turtle
>>> turtle.setup(600,400,0,0)
>>> turtle.color(\'yellow\')
>>> turtle.bgcolor(\'red\')
>>> turtle.fillcolor(\'yellow\')
>>> def mygoto(x,y):
turtle.up()
turtle.goto(x,y)
turtle.down()


>>> mygoto(-250,75)
>>> turtle.begin_fill()
>>> for i in range(5):
turtle.forward(100)
turtle.right(144)


>>> turtle.end_fill()
>>> mygoto(-100,150)
>>> turtle.begin_fill()
>>> for i in range(5):
turtle.forward(50)
turtle.right(144)


>>> turtle.end_fill()
>>> mygoto(-80,80)
>>> turtle.begin_fill()
>>> for i in range(5):
turtle.forward(50)
turtle.right(144)


>>> turtle.end_fill()
>>> mygoto(-90,20)
>>> turtle.begin_fill()
>>> for i in range(5):
turtle.forward(50)
turtle.right(144)

>>> turtle.end_fill()
>>> mygoto(-110,-50)
>>> turtle.begin_fill()
>>> for i in range(5):
turtle.forward(50)
turtle.right(144)


>>> turtle.end_fill()

 

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