python requests

            #pip3 install requests

            """
            import threading
            import requests
            import uuid

            url_list = [
                'https://www3.autoimg.cn/newsdfs/g28/M05/F9/98/120x90_0_autohomecar__ChsEnluQmUmARAhAAAFES6mpmTM281.jpg',
                'https://www2.autoimg.cn/newsdfs/g28/M09/FC/06/120x90_0_autohomecar__ChcCR1uQlD6AT4P3AAGRMJX7834274.jpg',
                'https://www2.autoimg.cn/newsdfs/g3/M00/C6/A9/120x90_0_autohomecar__ChsEkVuPsdqAQz3zAAEYvWuAspI061.jpg',
            ]

            def task(url):
                """"""

                """
                1. DNS解析，根据域名解析出IP
                2. 创建socket客户端    sk = socket.socket()
                3. 向服务端发起连接请求 sk.connect()
                4. 发送数据（我要图片） sk.send(...)
                5. 接收数据            sk.recv(8096)

                接收到数据后写入文件。
                """
                ret = requests.get(url)
                file_name = str(uuid.uuid4()) + '.jpg'
                with open(file_name, mode='wb') as f:
                    f.write(ret.content)

            for url in url_list:

                t = threading.Thread(target=task,args=(url,))
                t.start()