Python第三方库qrcode或MyQr生成博客地址二维码

• • myqr

前期准备

qrcode

下载地址：

qrcode · pypi

qr code image generator

使用简介：

import qrcode
qr = qrcode.qrcode(
    version=5,
    error_correction=qrcode.constants.error_correct_l,
    box_size=10,
    border=4,
)
qr.add_data('https://blog.csdn.net/boysoft2002/article/details/120213715')
qr.make(fit=true)
img = qr.make_image(fill_color="black", back_color="white")

myqr

下载地址：

myqr · pypi

https://pypi.org/project/myqr/

使用简介：

from myqr import myqr
myqr.run(words = 'https://blog.csdn.net/boysoft2002/article/details/120257133',
         save_name = 'qrcode.jpg'
         ) 
#生成带背景图片的二维码
myqr.run(words = 'https://blog.csdn.net/boysoft2002/article/details/120242318',
         picture = r'background.jpg',  #支持动态gif作背景
         colorized = true,　# true：彩色，false：黑白
         save_name = 'qrcode.png'
         )

安装第三方库

如下二选一安装都可以，若存在其它依赖库请一并安装：

d:\>pip install qrcode
collecting qrcode
  downloading qrcode-7.3.tar.gz (43 kb)
     |████████████████████████████████| 43 kb 191 kb/s
collecting colorama
  using cached colorama-0.4.4-py2.py3-none-any.whl (16 kb)
using legacy 'setup.py install' for qrcode, since package 'wheel' is not installed.
installing collected packages: colorama, qrcode
    running setup.py install for qrcode ... done
successfully installed colorama-0.4.4 qrcode-7.3
d:\>pip install myqr
collecting myqr
  downloading myqr-2.3.1.zip (16 kb)
collecting imageio>=1.5
  downloading imageio-2.9.0-py3-none-any.whl (3.3 mb)
     |████████████████████████████████| 3.3 mb 3.2 mb/s
requirement already satisfied: numpy>=1.11.1 in d:\python\lib\site-packages (from myqr) (1.20.2)
requirement already satisfied: pillow>=3.3.1 in d:\python\lib\site-packages (from myqr) (8.2.0)
using legacy 'setup.py install' for myqr, since package 'wheel' is not installed.
installing collected packages: imageio, myqr
    running setup.py install for myqr ... done
successfully installed myqr-2.3.1 imageio-2.9.0

代码

以qrcode为例，快速生成博客的二维码（粘贴自己的网址到urls变量中，文章标题非必须项）。

urls = '''
python 斐波那契数列递归的改进，算第1000万项只要4秒钟！
https://blog.csdn.net/boysoft2002/article/details/120257133
python 不自己试试，还真猜不出递归函数的时间复杂度！
https://blog.csdn.net/boysoft2002/article/details/120242318
python 算法的时间复杂度和空间复杂度 (实例解析)
https://blog.csdn.net/boysoft2002/article/details/120213715
python 控制台操作的文字版“数独”游戏（非gui版本）
https://blog.csdn.net/boysoft2002/article/details/120202704
'''
import re,os,qrcode
import tkinter as tk
url = re.findall(r'https://.*[0-9]', urls)
for i,u in enumerate(url):
    if u.find('?')!=-1:
        url[i] = u[:u.find('?')]
        #print(u)
imgs,index = [],0
for u in url:
    img = qrcode.make(u)
    id = u[::-1]
    id = id[:id.find('/')][::-1]
    imgs.append('qrcode'+id+'.png')
    with open(imgs[-1],'wb') as f:
        img.save(f)
def nextqr():
    global imgs,index,png,qrc
    index += 1
    if index==len(imgs):index = 0
    btn['text']=f'no:{index+1}: {imgs[index]}'
    png = tk.photoimage(file=imgs[index])
    qrc = cv.create_image(205,205,image=png)
    cv.update() 
def on_close():
    global imgs
    p = os.getcwd()
    if p[-1]!='\\':
        p += '\\'
    for f in imgs:
        os.remove(p+f)
    root.destroy()   
root = tk.tk()
root.geometry('600x520')
root.title('qrcode')
cv = tk.canvas(root, width=410, height=410)
cv.pack()
png = tk.photoimage(file=imgs[0])
qrc = cv.create_image(205,205,image=png)
btn = tk.button(root,text=f'no:1: {imgs[0]}',command=nextqr,fg='red')
btn.place(x=220,y=450)
root.protocol("wm_delete_window", on_close)
root.mainloop()

运行效果

点击 button 按钮逐个展示二维码：

我的使用环境：windows7 + python3.8.8 

 --all done!

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