def verifycode(request):#引入繪圖模塊from PIL import Image, ImageDraw, ImageFont#引入隨機函數模塊import random#定義變量，用于畫面的背景色、寬、高bgcolor = (random.randrange(20, 100), random.randrange(20, 100), random.randrange(20, 100))width = 100height = 50#創建畫面對象im = Image.new('RGB', (width, height), bgcolor)#創建畫筆對象draw = ImageDraw.Draw(im)#調用畫筆的point()函數繪制噪點for i in range(0, 100):xy = (random.randrange(0, width), random.randrange(0, height))fill = (random.randrange(0, 255), 255, random.randrange(0, 255))draw.point(xy, fill=fill)#定義驗證碼的備選值str = '1234567890QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm'#隨機選取4個值作為驗證碼rand_str = ''for i in range(0, 4):rand_str += str[random.randrange(0, len(str))]#構造字體對象font = ImageFont.truetype(r'C:\Windows\Fonts\AdobeArabic-Bold.otf', 40)#構造字體顏色fontcolor1 = (255, random.randrange(0, 255), random.randrange(0, 255))fontcolor2 = (255, random.randrange(0, 255), random.randrange(0, 255))fontcolor3 = (255, random.randrange(0, 255), random.randrange(0, 255))fontcolor4 = (255, random.randrange(0, 255), random.randrange(0, 255))#繪制4個字draw.text((5, 2), rand_str[0], font=font, fill=fontcolor1)draw.text((25, 2), rand_str[1], font=font, fill=fontcolor2)draw.text((50, 2), rand_str[2], font=font, fill=fontcolor3)draw.text((75, 2), rand_str[3], font=font, fill=fontcolor4)#釋放畫筆del draw#存入session，用于做進一步驗證# request.session['verifycode'] = rand_str#內存文件操作import iobuf = io.BytesIO()#將圖片保存在內存中，文件類型為pngim.save(buf, 'png')#將內存中的圖片數據返回給客戶端，MIME類型為圖片pngreturn HttpResponse(buf.getvalue(), 'image/png')

• ?圖為示例：