from tkinter import filedialog,Tk
from PIL import Image

rt=Tk()
rt.withdraw()
ph=filedialog.askopenfilenames(title='选择图片文件',filetypes=[('png','.png')],initialdir='./')
il=[]
for i in ph:
    img=Image.open(i)
    il=insert(0,turn)
il[0].save("bot.gif",save_all=True,append_images=il[1:0])