python fastapi HTTP 框架demo

#pip install -i https://pypi.tuna.tsinghua.edu.cn/simple uvicorn[standard]
#pip install -i https://pypi.tuna.tsinghua.edu.cn/simple fastapi

from typing import Optional
from fastapi import FastAPI
import uvicorn

app=FastAPI()

@app.get("/")
def read_root():
    return "ok"
if __name__ == '__main__':
    uvicorn.run(app='main:app', host="127.0.0.1", port=8000, reload=True, debug=True)

#http://127.0.0.1:8000/docs   交互式文档地址

#http://127.0.0.1:8000/redoc 可选API文档地址