# 新建一个名为Post的项目
django-admin startproject Post

from django.http import HttpResponse
import json
 
 
# 定义功能
def add_args(a, b):
 return a+b
 
# 接口函数
def post(request):
 if request.method == 'POST': # 当提交表单时
  dic={}
  # 判断是否传参
  if request.POST:
   a= request.POST.get('a', 0)
   b = request.POST.get('b', 0)
   # 判断参数中是否含有a和b
   if a and b:
    res = add_args(a, b)
    dic['number'] = res
    dic = json.dumps(dic)
    return HttpResponse(dic)
   else:
    return HttpResponse('输入错误')
  else:
   return HttpResponse('输入为空')
 
 else:
  return HttpResponse('方法错误')

from django.contrib import admin
from django.urls import path
 
from . import view
 
urlpatterns = [
 path('admin/', admin.site.urls),
 path('hello/',view.post),
]

# 启动项目命令，默认是8000端口，这里使用8001防止端口冲突
python manage.py runserver 0.0.0.0:8001

import requests
 
res = requests.post('http://127.0.0.1:8001/hello/', data={'a':3, 'b':4})
print(res.text)