Python 装饰器

http://www.cnblogs.com/rhcad/archive/2011/12/21/2295507.html

http://www.cnblogs.com/PandaBamboo/archive/2013/01/17/2865003.html

http://pythonmap.iteye.com/blog/1682696

装饰参数列表不一样的多个函数

@wraps

@property

python 函数对象