Python-将url生成二维码

导入qrcode 、io

import qrcode
from io import BytesIO
def QRcode(url):
    qr = qrcode.QRCode(
        version=2,  # 尺寸大小
        error_correction=qrcode.constants.ERROR_CORRECT_L,  # 容错系数 ERROR_CORRECT_L: 7%的字码可被容错
                                                            # ERROR_CORRECT_M: 15%的字码可被容错
                                                            # ERROR_CORRECT_Q: 25%的字码可被容错
                                                            # ERROR_CORRECT_H: 30%的字码可被容错
        box_size=10,    # 每个格子像素大小
        border=1    # 边框距离
    )
    qr.add_data(url)
    qr.make(fit=False)
    img = qr.make_image()
    buf = BytesIO()
    img.save(buf)
    image_stream = buf.getvalue()
    return image_stream

io 是操作内存的