加载项目常量配置对象

这里我们从本地类当中取值：

from flask import Flask

class DefaultConfig(object):
    """default project config"""
    USER = "zhang"
    PWD ="<PASSWORD>"



app=Flask(__name__)
app.config.from_object(DefaultConfig)



@app.route('/')
def index():
    print(app.config['USER'])
    print(app.config['PWD'])
    return "Hello World!"


if __name__ == '__main__':
    app.run()