from io import BytesIO
import zipfile
from django.http import FileResponse

def view():

    download_io = BytesIO()

    with zipfile.ZipFile(pb_zip_io, "w", zipfile.ZIP_DEFLATED) as zip_fp:
        zip_fp.open("a.txt", "w") as f:
            f.write("hello world")


    # 注意，需要要将指针指向内存的开始位置
    download_io.seek(0)

    return FileResponse(download_io, as_attachment=True, filename="a.zip")

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