python flask web服务如何更换默认端口和IP

flask web后台启动后会发现默认是 localhost 127.0.0.1：5000
如果需要修改，方便调试发布
可以采用以下方式运行

from flask import Flask
from flask import request
app = Flask(__name__)


@app.route('/')
def index():
    user_agent=request.headers.get('User_Agent')
    return 'user_agent is %s' %user_agent

if __name__ == '__main__':
    app.run(
      host='0.0.0.0',
      port= 5000,
      debug=True
    )

结果如下

• Serving Flask app “start” (lazy loading)
• Environment: production
  WARNING: Do not use the development server in a production environment.
  Use a production WSGI server instead.
• Debug mode: on
• Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
• Restarting with stat
• Debugger is active!
• Debugger PIN: 807-167-541