代码：

def proxy_get_content_stream(url):
    if is_use_proxy:
        socks.set_default_proxy(socks.SOCKS5, PROXY_HOST, PROXY_PORT)
        socket.socket = socks.socksocket
    return requests.get(url, headers=HEADERS, stream=True, timeout=300)
def save_image_from_url_with_progress(url, cnt):
    with closing(proxy_get_content_stream(url)) as response:
        chunk_size = 1024  # 单次请求最大值
        content_size = int(response.headers['content-length'])  # 内容体总大小
        data_count = 0
        with open(cnt, "wb") as file:
            for data in response.iter_content(chunk_size=chunk_size):
                file.write(data)
                data_count = data_count + len(data)
                now_position = (data_count / content_size) * 100
                print("\r[D] 下载进度： %s %d%%(%d/%d)" % (int(now_position) * '▊' + (100 - int(now_position)) * ' ',
                                                      now_position,
                                                      data_count,
                                                      content_size,), end=" ")
        print('')