import turtle
import random

turtle.setup(800,600)
#turtle.bgpic('美术馆背景图.png')
tutu = turtle.Turtle()
tutu.speed(0)
tutu.pensize(10)

def rectangle(width,height):
    tutu.pendown()
    color_list = ['red','yellow','blue','gray','green','white','brown','black','purple','pink','orange']
    tutu.fillcolor(random.choice(color_list))
    tutu.begin_fill()
    for i in range(2):
        tutu.forward(width)
        tutu.left(90)
        tutu.forward(height)
        tutu.left(90)
    tutu.end_fill()
    tutu.penup()


width = random.randint(100,120)
height = random.randint(60,90)
rectangle(width,height)

turtle.done()