下载一只猫

import easygui as g
import urllib.request

title = '下载一只猫'
msg = '请输入猫的尺寸'
values = ('宽','高')

interface = g.multenterbox(msg,title,values)
size = interface[0]+'/'+interface[1]

response = urllib.request.urlopen('http://placekitten.com/'+size).read()
file_path = g.diropenbox(msg='请选择存放猫的文件夹') + '喵.jpg'

with open(file_path,'wb') as f:
    f.write(response)