数据库信息生成二维码

import qrcode

def generate_qr_code(data):
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_L,
        box_size=10,
        border=4,
    )
    qr.add_data(data)
    qr.make(fit=True)

    img = qr.make_image(fill='black', back_color='white')
    img.save("qrcode.png")

# 示例数据
data = "https://example.com"
generate_qr_code(data)

import qrcode
from cryptography.fernet import Fernet

# 生成密钥
key = Fernet.generate_key()
fernet = Fernet(key)

def encrypt_data(data):
    return fernet.encrypt(data.encode())

def generate_qr_code(encrypted_data):
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_H,
        box_size=10,
        border=4,
    )
    qr.add_data(encrypted_data.decode())
    qr.make(fit=True)

    img = qr.make_image(fill='black', back_color='white')
    img.save("qrcode_encrypted.png")

# 示例数据
data = "https://example.com"
encrypted_data = encrypt_data(data)
generate_qr_code(encrypted_data)