步驟一：安裝 flask
!pip install flask步驟二：引入 flask
from flask import Flask, request
from markupsafe import escape步驟三：路由撰寫
app = Flask(__name__)
# Define Flask routes
@app.route("/")
def index():
return "Hello World"
@app.route("/hello")
def bighello():
return "<h1>Hello from Colab!</h1>"
@app.route('/user', methods=['GET'])
def show_user_profile():
username = request.args.get('username')
return '<html><body><h1>hello {}</h1></body></html>'.format(username)
@app.route('/user_escape', methods=['GET'])
def show_user_profile_escape():
username = request.args.get('username')
return '<html><body><h1>hello {}</h1></body></html>'.format(escape(username))
@app.route('/calc', methods=['GET'])
def my_calc():
expr = request.args.get('expr')
return "{}={}".format(expr,eval(expr))
步驟四：啟用 server 及對外連線
import multiprocessing
proc = multiprocessing.Process(target=app.run, kwargs=dict(use_reloader=False))
proc.start()
!ssh -o "StrictHostKeyChecking no" -R 80:localhost:5000 serveo.netproc.terminate()