#题目：画图，学用circle画圆形。

#usr/bin/env python
#coding:utf-8

if name == ‘main’:
import turtle
turtle.title(“画圆”)
turtle.setup(800,600,0,0)
pen=turtle.Turtle()
pen.color(“yellow”)
pen.width(5)
pen.shape(“turtle”)
pen.speed(1)
pen.circle(100)