分享Python文本生成二维码实例
本文实例分享了Python文本生成二维码的详细代码，供大家参考，具体内容如下
测试一：将文本生成白底黑字的二维码图片
测试二：将文本生成带logo的二维码图片
#coding:utf-8
'''
Python生成二维码 v1.0
主要将文本生成二维码图片
测试一：将文本生成白底黑字的二维码图片
测试二：将文本生成带logo的二维码图片
'''
__author__ = 'Xue'
import qrcode
from PIL import Image
import os
#生成二维码图片
def make_qr(str,save):
qr=qrcode.QRCode(
version=4, #生成二维码尺寸的大小 1-40 1:21*21（21+(n-1)*4）
error_correction=qrcode.constants.ERROR_CORRECT_M, #L:7% M:15% Q:25% H:30%
box_size=10, #每个格子的像素大小
border=2, #边框的格子宽度大小
)
qr.add_data(str)
qr.make(fit=True)
img=qr.make_image()
img.save(save)
#生成带logo的二维码图片
def make_logo_qr(str,logo,save):
#参数配置
qr=qrcode.QRCode(
version=4,
error_correction=qrcode.constants.ERROR_CORRECT_Q,
box_size=8,
border=2
)
#添加转换内容
qr.add_data(str)
#
qr.make(fit=True)
#生成二维码
img=qr.make_image()
#
img=img.convert("RGBA")
#添加logo
if logo and os.path.exists(logo):
icon=Image.open(logo)
#获取二维码图片的大小
img_w,img_h=img.size
factor=4
size_w=int(img_w/factor)
size_h=int(img_h/factor)
#logo图片的大小不能超过二维码图片的1/4
icon_w,icon_h=icon.size
if icon_w>size_w:
icon_w=size_w
if icon_h>size_h:
icon_h=size_h
icon=icon.resize((icon_w,icon_h),Image.ANTIALIAS)
#计算logo在二维码图中的位置
w=int((img_w-icon_w)/2)
h=int((img_h-icon_h)/2)
icon=icon.convert("RGBA")
img.paste(icon,(w,h),icon)
#保存处理后图片
img.save(save)
if __name__=='__main__':
save_path='theqrcode.png' #生成后的保存文件
logo='logo.jpg' #logo图片
str=raw_input('请输入要生成二维码的文本内容：')
#make_qr(str)
make_logo_qr(str,logo,save_path)
那Python使用QRCode模块如何生成二维码？
1、简介
python-qrcode是个用来生成二维码图片的第三方模块，依赖于 PIL 模块和 qrcode 库。
2、简单用法
import qrcode
img = qrcode.make('hello, qrcode')
img.save('test.png')
3、高级用法
import qrcode
qr = qrcode.QRCode(
version=1,
error_correction=qrcode.constants.ERROR_CORRECT_L,
box_size=10,
border=4,
)
qr.add_data('hello, qrcode')
qr.make(fit=True)
img = qr.make_image()
img.save('123.png')
4、参数含义：
version：值为1~40的整数，控制二维码的大小（最小值是1，是个12×12的矩阵）。 如果想让程序自动确定，将值设置为 None 并使用 fit 参数即可。
error_correction：控制二维码的错误纠正功能。可取值下列4个常量。
ERROR_CORRECT_L：大约7%或更少的错误能被纠正。
ERROR_CORRECT_M（默认）：大约15%或更少的错误能被纠正。
ROR_CORRECT_H：大约30%或更少的错误能被纠正。
box_size：控制二维码中每个小格子包含的像素数。
border：控制边框（二维码与图片边界的距离）包含的格子数（默认为4，是相关标准规定的最小值）
希望本文所述对大家学习Python程序设计有所帮助。
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