四种返回前端的方法
现在介绍第四种
import json import random from io import BytesIO from PIL import Image, ImageDraw, ImageFont def get_rgb_func(): """ 获取三原色 :return: 三个元组 """ return (random.randint(1,255),random.randint(1,255),random.randint(1,255)) def get_imge(request): image = Image.new(mode="RGB", size=(130, 60), color=get_rgb_func()) draw = ImageDraw.Draw(image) font = ImageFont.truetype("static/fonts/kumo.ttf",size=36) f = BytesIO() temp = [] for i in range(5): random_char = random.choice([str(random.randint(0,9)),chr(random.randint(65,90)),chr(random.randint(97,122))]) draw.text((i*27,10),random_char,get_rgb_func(),font=font) temp.append(random_char) width = 120 height = 80 for i in range(80): draw.point((random.randint(0,width),random.randint(0,height)),fill=get_rgb_func()) for i in range(10): x1=random.randint(0,width) x2=random.randint(0,width) y1=random.randint(0,height) y2=random.randint(0,height) draw.line((x1,y1,x2,y2),fill=get_rgb_func()) for i in range(40): draw.point([random.randint(0, width), random.randint(0, height)], fill=get_rgb_func()) x = random.randint(0, width) y = random.randint(0, height) draw.arc((x, y, x + 4, y + 4), 0, 90, fill=get_rgb_func()) image.save(f, "png") data = f.getvalue() request.session["random_char"] = ‘‘.join(temp) return HttpResponse(data)