一、下载包
pip install pillow
二、代码
这是一个函数,无输入,返回两个值。一个值是图片,一个值是图片中的数字及字母。
需要注意:font_file='Monaco.ttf' 是一个验证码字体文件,如有需要,可三连私信。
import randomfrom PIL import ImageFilter, ImageDraw, Image, ImageFontdef check_code(width=120, height=30, char_length=5, font_file='Monaco.ttf', font_size=28):code = []img = Image.new(mode='RGB', size=(width, height), color=(255, 255, 255))draw = ImageDraw.Draw(img, mode='RGB')def rndChar():"""生成随机字母:return:"""return chr(random.randint(65, 90))def rndColor():"""生成随机颜色:return:"""return (random.randint(0, 255), random.randint(10, 255), random.randint(64, 255))# 写文字font = ImageFont.truetype(font_file, font_size)for i in range(char_length):char = rndChar()code.append(char)h = random.randint(0, 4)draw.text([i * width / char_length, h], char, font=font, fill=rndColor())# 写干扰点for i in range(40):draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())# 写干扰圆圈for i in range(40):draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())x = random.randint(0, width)y = random.randint(0, height)draw.arc((x, y, x + 4, y + 4), 0, 90, fill=rndColor())# 画干扰线for i in range(5):x1 = random.randint(0, width)y1 = random.randint(0, height)x2 = random.randint(0, width)y2 = random.randint(0, height)draw.line((x1, y1, x2, y2), fill=rndColor())img = img.filter(ImageFilter.EDGE_ENHANCE_MORE)return img, ''.join(code)
三、在view.py中调用函数即可。
前端:
<img id="image_code" src="/image_code/" style="width: 125px">
后端:
"""用户界面的动态验证码"""
from io import BytesIO
def image_code(requesr):# 调用poillow函数,生成图片img, code_string = check_code()print(code_string)# 创建内存中的文件stream = BytesIO()img.save(stream, 'png')return HttpResponse(stream.getvalue())