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入门 ​

第一个web服务 ​

查看代码：https://gitee.com/PatrickW/flask-web/blob/master/src/1hellowold.py

python
from flask import Flask
app = Flask(__name__)

SERVER_PORT=9999

@app.route('/')
def index():
    return '<h1>Hello Flask!</h1>'

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

另一种启动项目 ​

shell
export FLASK_APP=1hellowold.py # 指定启动项目
export FLASK_DEBUG=1  # 启动调试模式
flask run --host=0.0.0.0 --port=9999 # 启动项目
shell
(base) ➜  flask run --host=0.0.0.0 --port=9999
 * Serving Flask app '1hellowold.py'
 * Debug mode: off
WARNING: This is a development server. 
Do not use it in a production deployment. 
Use a production WSGI server instead.
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:9999
 * Running on http://192.168.1.4:9999
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