import turtle

创建画布和画笔

canvas = turtle.Screen() pen = turtle.Turtle()

设置画笔速度和颜色

pen.speed(0) pen.color("black")

绘制圆形

radius = 100 angle = 360/200 for _ in range(200): pen.forward(radius) pen.left(angle)

关闭画布

canvas.exitonclick()