Flask Script扩展提供向Flask插入外部脚本的功能
Manager
Manager可以看作是一个监视命令行的脚本，该脚本同时也可以添加命令，有三种方法添加命令：
1.创建Command子类，子类必须定义一个run方法
from flask_script import Manager
from flask_script import Command
from debug import app
manager = Manager(app)
class Hello(Command):
'hello world'
def run(self):
print('hello world')
manager.add_command('hello',Hello())
if __name__ == "__main__":
manager.run()
结果：
python manager.py hello
> hello world
2.使用Command实例的@command修饰符
#-*-coding:utf8-*-
from flask_script import Manager
from debug import app
manager = Manager(app)
@manager.command
def hello():
'hello world'
print 'hello world'
if __name__ == '__main__':
manager.run()
结果：
python manager.py hello
> hello world
3.使用Command实例的@option修饰符
#-*-coding:utf8-*-
from flask_script import Manager
from debug import app
manager = Manager(app)
@manager.option('-n', '--name', dest='name', help='Your name', default='world')
@manager.option('-u', '--url', dest='url', default='www.csdn.com')
def hello(name, url):
'hello world or hello <setting name>'
print 'hello', name
print url
if __name__ == '__main__':
manager.run()
结果：
python manager.py hello
>hello world
>www.csdn.com
python manager.py hello -n sissiy -u www.sissiy.com
> hello sissiy
>www.sissiy.com