python流媒体下载&大文件读取

背景：把数据从指定位置下载保存到本地

1. 文件下载

res = requests.get('https://www.xxxx.com',stream=True)
with open(file_name.wav,'wb') as f_w:
    for a in res.iter_content(chunk_size=32):#iter是iter
        f_w.write(a)

2. 补充大文件读取

with open(file_name.'rb') as f:
    for content in f:
        print(content.decode('utf8'))