Python3使用qrcode生成二维码,python3qrcode, from PIL


    from PIL import Image      import qrcode      #最小尺寸 1 会生成 21 * 21 的二维码,version 每增加 1,生成的二维码就会添加 4 尺寸      #参数 error_correction 指定二维码的容错系数,分别有以下4个系数:      #ERROR_CORRECT_L: 7%的字码可被容错      #ERROR_CORRECT_M: 15%的字码可被容错      #ERROR_CORRECT_Q: 25%的字码可被容错      #ERROR_CORRECT_H: 30%的字码可被容错      #参数 box_size 表示二维码里每个格子的像素大小      #参数 border 表示边框的格子厚度是多少(默认是4)      qr = qrcode.QRCode(version=3, box_size=10, border=0, error_correction=qrcode.constants.ERROR_CO<img src="http://img.blog.csdn.net/20150221190909177" alt="" />RRECT_H)<img src="http://img.blog.csdn.net/20150221190929177" alt="" />      qr.add_data('这里是二维码的内容')      qr.make(fit=True)      img = qr.make_image()      img = img.convert('RGBA')      icon = Image.open('C:\\Users\\hengli\\Pictures\\CameraMan\\头像.jpg')      icon = icon.convert('RGBA')      w, h = img.size      factor = 4      size_w = int(w/factor)      size_h = int(h/factor)      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)      w = int((w-icon_w)/2)      h = int((h-icon_h)/2)      img.paste(icon, (w, h), icon)      img.save('D:/A.PNG', quality=100)  

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