turtle库的使用

import turtle
turtle.showturtle()
turtle.write("箭头")
turtle.forward(300)
turtle.color("blue")
turtle.left(90)
turtle.forward(300)
turtle.goto(0,50)
turtle.circle(100)

奥运五环的实例

import turtle
turtle.width(10)

turtle.color("blue")
turtle.circle(50)

turtle.penup()
turtle.goto(120,0)
turtle.pendown()
turtle.color("black")
turtle.circle(50)

turtle.penup()
turtle.goto(240,0)
turtle.pendown()
turtle.color("red")
turtle.circle(50)

turtle.penup()
turtle.goto(60,-50)
turtle.pendown()
turtle.color("yellow")
turtle.circle(50)

turtle.penup()
turtle.goto(180,-50)
turtle.pendown()
turtle.color("green")
turtle.circle(50)