flask以前可以使用，突然不能用

Question

python-flask突然不能用了。
反馈信息：
Environment: production
WARNING: This is a development server. Do not use it in a production deployment.
Use a production WSGI server instead.

• Debug mode: off
• Running on http://127.0.0.1:5000 (Press CTRL+C to quit)

Answer 1

你这不是启动了？