Python基础小常识（五）

绘制太极

程序如下：

>>> import turtle
>>> turtle.circle(100)
>>> turtle.circle(50,180)
>>> turtle.circle(-50,180)
>>> turtle.penup()
>>> turtle.goto(0,140)
>>> turtle.pendown()
>>> turtle.circle(10)
>>> turtle.penup()
>>> turtle.goto(0,40)
>>> turtle.pendown()
>>> turtle.circle(10)
>>> turtle.done()

绘制圆切

程序代码如下：

>>> import turtle as t
>>> t.circle(40)
>>> t.circle(60)
>>> t.circle(80)
>>> t.done()

绘制靶心圆环

程序实现如下：

>>> import turtle as t
>>> def DrwaCctCircle(n):
	t.penup()
	t.goto(0,-n)
	t.pendown()
	t.circle(n)
	>>> for i in range(20,80,20):
	DrwaCctCircle(i)

	
>>> t.done()