程序如下

buildings

import turtle as t

t.pencolor("green")
t.left(90)
def main():
for i in range(10):
t.fd(10)
t.right(90)
t.fd(10)
t.right(90)
t.fd(10)
t.right(90)
t.fd(10)
t.right(90)
t.fd(10)
t.right(180)
t.fd(100)
t.left(90)
t.fd(10)
t.left(90)

for i in range(10):
main()

t.done()

image.png

程序如下

circles

import turtle as t

t.pencolor("pink")
t.left(90)
def main():

for i in range(10):
    t.circle(10,360)
    t.penup()
    t.fd(20)
    t.pendown()
    
t.penup()
t.right(180)
t.fd(200)
t.left(90)
t.fd(20)
t.left(90)
t.pendown()

for i in range(10):
main()

t.done()

image.png