PC端微信会将图片进行异或加密再存储，把原本可以快乐jpg的全部搞成dat格式。某一天我想在PC端想找几个有用的历史图片，发现dat没法打开，研究了一下，搞到了dat转jpg的py代码，如有侵权立删。
就这种简单方法，在百度和知乎还有人忽悠交几十块钱去买他的转化程序，互联网时代割韭菜钱也来得太快了吧？我们不能被忽悠，下面这个python3的代码，复制到你自己的编译器，只需要修改一下导入和导出的文件路径，run一下就全部自动给出来了，免费的。
但是有个条件，这玩意儿对你有用，以后就多访问望江雁的网站。请记住我的域名xianghonghuang.cn，以后还会持续出一些有用的技术贴，即使不炒股、不玩音乐、对文学没兴趣，你来我这也可以掌握真枪实弹的技术。
import os
into_path = r'E:\wendang\WeChat Files\wxid_wa8ztuagwm9q32\FileStorage\Image\2020-07' #请将想导入的dat文件的路径复制到引号里面，修改此处代码
out_path = r"E:\jpgs" #运行代码前记得修改导出路径，此处是导出到E盘的jpgs空文件夹下
def imageDecode(f, fn):
dat_read = open(f, "rb")
xo = Format(f)
out = out_path + fn + ".jpg"
print("导出文件的路径{}".format(out), end='\n\n')
png_write = open(out, "wb")
dat_read.seek(0)
for now in dat_read:
for nowByte in now:
newByte = nowByte ^ xo
png_write.write(bytes([newByte]))
dat_read.close()
png_write.close()
def findFile(f):
fsinfo = os.listdir(f)
print(fsinfo)
for fn in fsinfo:
temp_path = os.path.join(f, fn)
if os.path.isfile(temp_path):
print('导入的文件路径是{}'.format(temp_path))
fn = fn[:-4]
imageDecode(temp_path, fn)
else:
pass
def Format(f):
dat_r = open(f, "rb")
try:
a = [(0x89, 0x50, 0x4e), (0x47, 0x49, 0x46), (0xff, 0xd8, 0xff)]
for now in dat_r:
for xor in a:
i = 0
res = []
nowg = now[:3]
for nowByte in nowg:
res.append(nowByte ^ xor[i])
i += 1
if res[0] == res[1] == res[2]:
return res[0]
except:
pass
finally:
dat_r.close()
if __name__ == '__main__':
findFile(into_path)
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