这是一段简单的 Flask 代码 from flask import Flask app = Flask (__name__) @app.route ("/") def index (): return "Hello World" app.run (debug=True) 我们开启了调试模式，与此同时控制台输出 > python test.py * Serving Flask app 'test' * Debug mode: on WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server …