猫史档案馆

import turtle

bob = turtle.Turtle()   # Creating the object "bob"

def draw_circle(t):
    for i in range (360):   # Loop for drawing a circle
        t.fd(1) # Draw a line with the length of 1 pixel in the forward direction
        t.lt(1) # Turn 1 degree to the left

draw_circle(bob)
turtle.mainloop()