初学者求纠错，跑不起来🙏🏻

Question

预期运行结果附上，我写的这串为什么跑不起来啊，咸鱼求捞👀
麻烦各位帮忙看看🙏🏻

Answer 1

import turtle
turtle.color('red')
turtle.pensize(3)
turtle.circle(75)
turtle.penup()

turtle.color('green')
turtle.goto(-80, -80)
turtle.pendown()
turtle.circle(75)
turtle.penup()

turtle.goto(80, -80)
turtle.color('blue')

turtle.pendown()
turtle.circle(75)
turtle.done()

循环版本：

import turtle
a=['red','green','blue']

for i in range (3):
    turtle.pensize(3)
    turtle.color(a[i])
    t=-80*i
    if i==1:
        turtle.goto(t,t)
        turtle.pendown()
    if i==2:
        turtle.goto(-t/2,t/2)
        turtle.pendown()
    
    turtle.circle(75)
    turtle.penup()
turtle.done()