Python 二维码的读取与生成：使用链接生成二维码、读取二维码里的链接

import qrcode

def create_qc_code(url):
    '''
     链接生成二维码里
    '''
    
    # 可选参数box_size、 border
    qr = qrcode.QRCode(box_size=10, border=2)
    # 添加链接
    qr.add_data(url)
    # 生成二维码，默认是常规白底黑色填充的
    img = qr.make_image(fill_color='black', back_color='white')
    # 展示图片
    img.show()
    # 可以使用img.save()保存图片到本地
    img.save("百度查询北京天气.png")

# 百度查询北京天气的链接
url = 'https://www.baidu.com/s?ie=UTF-8&wd=%E5%8C%97%E4%BA%AC%E5%A4%A9%E6%B0%94'
create_qc_code(url)

from pyzbar.pyzbar import decode
from PIL import Image

def read_qc_code(img):
    '''
     读取二维码里的链接
    '''
    barcodes = decode(img)
    
    urls = ""
    # 图片包含多个二维码，识别成功会返回多个链接
    for barcode in barcodes:
        url = barcode.data.decode("utf-8")
        urls = urls + "\n" + url
        
    return urls

img = Image.open("百度查询北京天气.png")
urls = read_qc_code(img)
print("获取到的链接：" + urls)