import turtle
turtle.width(10) #设置笔的粗细
turtle.penup() #抬笔
turtle.fd(-120) #前进-120即后退120，数字可调整以显示最好效果
turtle.pendown() #落笔
turtle.color("blue")
turtle.circle(50) #半径50，角度不写默认360
turtle.color("black")
turtle.penup()
turtle.goto(0, 0) #笔移动到（0，0）点
turtle.pendown()
turtle.circle(50)
turtle.color("red")
turtle.penup()
turtle.goto(120, 0)
turtle.pendown()
turtle.circle(50)
turtle.color("yellow")
turtle.penup()
turtle.goto(-60, -50)
turtle.pendown()
turtle.circle(50)
turtle.color("green")
turtle.penup()
turtle.goto(60, -50)
turtle.pendown()
turtle.circle(50)
