PIL 产生随机验证码代码实现

后端实现

from io import BytesIOfrom PIL import Image, ImageDraw, ImageFontdef random_color():    """    随机获取颜色    :return:    """    return random.randint(0, 255), random.randint(10, 255), random.randint(64, 255)def get_captcha(request):    """    获取图片验证码    :param request:    :return:    """    width = 150    height = 40    # 画布    image = Image.new('RGB', size=(width, height),                      color=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))    # 画笔    draw = ImageDraw.Draw(image, 'RGB')    # 字体    font = ImageFont.truetype(r'C:\Windows\Fonts\Arial.ttf', 28)    for i in range(10):        x1 = random.randint(0, width)        y1 = random.randint(0, height)        x2 = random.randint(0, width)        y2 = random.randint(0, height)        # 生成干扰线        draw.line((x1, y1, x2, y2), fill=random_color())    for i in range(5):        a = str(random.randint(0, 9))        b = chr(random.randint(97, 122))        c = chr(random.randint(65, 90))        captcha = random.choice([a, b, c])        # 生成验证码文字        draw.text(xy=(25 + i * 20, 5), text=captcha, font=font,                  fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255),))    for i in range(50):        # 生成干扰点        draw.point([random.randint(0, width), random.randint(0, height)], fill=random_color())    f = BytesIO()    image.save(f, 'png')    data = f.getvalue()    return HttpResponse(data)

前端代码

<div class="col-sm-4 has-error">     <img src="/blog/get_captcha/" alt=""></div>

效果图