8.20 BUUCTF python将GIF分解

调了半天创建实例后没有调用成员函数。。。

from PIL import Image
import os
import random

class GIF:
    def __init__(self, file_name):
        self.file_name = file_name
        self.dir_name = self.file_name[:-4]
        self.gif_name = os.path.join(os.path.dirname(__file__), file_name)
        print(self.file_name,self.dir_name,self.gif_name,sep=' ----- ')
        self.make_dir()

    def make_dir(self):
        try:
            os.mkdir(self.dir_name)
        except FileExistsError:
            rdm = random.randint(1,10)
            self.dir_name += str(rdm)
            os.mkdir(self.dir_name)
        
    def Divide(self):
        img = Image.open(r'.gif')
        
        cnt = 0
        try:
            while True:
                now = img.tell()
                cnt = cnt + 1
                _pth = os.path.join(self.dir_name,f'{cnt}.png')
                img.save(_pth)
                img.seek(now + 1)
        except Exception as e:
            pass

if __name__ == '__main__':
    GIF(r'.gif').Divide()