from flask import Flask,render_template
import os
app = Flask(__name__)
@app.route("/ ", methods=['GET', 'POST'])
def home():
return "hello world"
port = int(os.environ.get('PORT', 5000))
if __name__== '__main__':
app.run( port=port,debug=True)
错误：
* Serving Flask app "pythonweb" (lazy loading)
* Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.
* Debug mode: on
Restarting with stat
Debugger is active!
Debugger PIN: 250-679-261
Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
127.0.0.1 - - [30/Jul/2020 01:00:05] "GET / HTTP/1.1" 404 -
127.0.0.1 - - [30/Jul/2020 01:00:07] "GET / HTTP/1.1" 404 -
从路由中删除空间：
@app.route("/", methods=['GET', 'POST'])
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我来说两句