2026年Python Web框架大比拼:FastAPI vs Reflex vs Django

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

classUser(BaseModel):
    name: str
    email: str

# 超简单的API定义
@app.post("/users/")
asyncdefcreate_user(user: User):
return {"message": f"用户 {user.name} 创建成功！", "user": user}

# 自动生成文档：访问 http://localhost:8000/docs
if __name__ == "__main__":
import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)

import reflex as rx

defindex():
return rx.center(
        rx.vstack(
            rx.heading("欢迎使用Reflex", size="9"),
            rx.text("纯Python构建全栈应用"),
            rx.button(
"点击我",
                on_click=lambda: rx.set_value("message", "你点击了按钮！"),
                color_scheme="blue"
            ),
            rx.text("message"),
            spacing="5",
        )
    )

# 一行命令启动应用
app = rx.App()
app.add_page(index)

from django.db import models
from django.http import JsonResponse
from django.views.decorators.csrf import csrf_exempt
import json

# 模型定义
classArticle(models.Model):
    title = models.CharField(max_length=200)
    content = models.TextField()
    created_at = models.DateTimeField(auto_now_add=True)

# API视图
@csrf_exempt
defarticle_list(request):
if request.method == 'POST':
        data = json.loads(request.body)
        article = Article.objects.create(
            title=data['title'],
            content=data['content']
        )
return JsonResponse({"id": article.id, "title": article.title})

    articles = Article.objects.all().values()
return JsonResponse(list(articles), safe=False)