下面这个图形不好取什么名字,先取这个名字吧,上课时把图形显示,让学生们去练习即可.

下面是参考程序:
import turtle
cs = ['red','orange','yellow','green']
turtle.shape('turtle')
turtle.bgcolor('black')
turtle.speed(0)
turtle.delay(0)
turtle.color('white')
turtle.penup()
turtle.begin_fill()
for i in range(4):
turtle.fd(100)
turtle.left(90)
turtle.end_fill()
for i in range(4):
turtle.right(90)
turtle.color(cs[i])
turtle.begin_fill()
turtle.circle(50,180)
turtle.end_fill()
turtle.ht()
