21.9的python考级题

jianghongz

import turtle as t
t.pensize(3)
c = ["red","blue","orange","green"]
s = int(t.textinput("边数","请输入："))
r = 15
n = 1
while True :
   if n > s :
         break
   for i in c :
      t.color(i)
      t.fd(r)
      t.left(90)
      r += 5
      n += 1
      if n > s :
         break