saver.py 文件源码

def download_progress(res, stream, save_name):
    total_size = int(res.headers.get('content-length', 0)); 

    chunk_size = 32 * 1024
    pbar = tqdm(total=total_size, unit='B', unit_scale=True, desc=save_name)

    for data in res.iter_content(chunk_size):
        stream.write(data)
        pbar.update(chunk_size)