Python3实现生成验证码图片

import random
from PIL import Image, ImageFont, ImageDraw
from io import BytesIO
from ttt import settings
import os
import base64

PATH = os.path.join(settings.D_APP_ROOT, 'apps/membership/static/noisy.ttf')  #  字体
LEN_VERIFY = 4

def get_verify():

  verify_len = LEN_VERIFY
  weight = 108
  hight = 41
  # 大写字母,小写字母,数字
  txt_list = [48, 49, 50, 51, 52, 53, 54, 55, 56, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
  81,
  82, 83, 84, 85, 86, 87, 88, 89, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110,
  111,
  112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122]
  image = Image.new('RGBA', (weight, hight), (255, 255, 255))
  font = ImageFont.truetype(PATH, 20)
  draw = ImageDraw.Draw(image)
  # 填充背景
  for x in range(weight):
  for y in range(hight):
  draw.point((x, y), fill=(200, 200, 200))
  # 生成随机验证码
  verify = ''
  for t in range(verify_len):
  text = chr(txt_list[random.randint(0, len(txt_list) - 1)])
  verify += text
  draw.text(((weight // verify_len) * t + 7, 10), text, font=font,
  fill=(random.randint(32, 127), random.randint(32, 127), random.randint(32, 127)))
  img_buffer = BytesIO()
  image.save(img_buffer, 'PNG')
  base = base64.b64encode(img_buffer.getvalue())
  return base, verify

# django中返回方式

return HttpResponse(image, content_type='image/png')

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