直接上代码

import os
into_path = r'D:\giao\Image\\'  #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"D:\giao\img\\"  #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__':
    for i in os.listdir(into_path):
        if os.path.isfile(i):
            pass                         
        else:
            findFile(into_path+i)
    # print(os.listdir(into_path))
    #findFile(into_path)