python 装饰器

coding=utf-8#first demodef TwoDeco(func): def newDeco(a, b): print 'begin' retval = func(a, b) print 'end' return retval return newDeco@TwoDecodef test2(x, y): if x>y: print x else: print ytest2(3, 4)#second demodef FirstDeco(func): def replaceFunc(): print 'first' func() print 'two' return replaceFunc@FirstDecodef test1(): print 'test1'test1()#three demodef Deco(x): def newDeco(func): def test(a, b): print 'begin' retval = func(a, b) print 'end' return retval return test return newDeco@Deco(3)def testDeco(a, b): if a>b: print a else: print btestDeco(3, 4) 

 

参考文章：http://hi.baidu.com/mnkee/blog/item/461b0cf4ea94f562ddc4742a.html