代码收藏家技术教程 2022-08-01

python 生成二维码，快速分享自己的博客地址

使用第三方库 qrcode 或者 MyQr 给自己的博客网址快速生成二维码吧！

前期准备

qrcode

下载地址：

qrcode · PyPIQR Code image generatorhttps://pypi.org/project/qrcode/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 · PyPIhttps://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()