属性访问拦截器
class Itcast(object):
def __init__(self,subject1):
self.subject1 = subject1
self.subject2 = "go"
#属性访问拦截器，打log
def __getattribute__(self, item):
print("---1>%s" %item)
if item == "subject1":
print("log subject1")
return 'redirect python'
else:
temp = object.__getattribute__(self,item)
print("---2>%s"%str(temp))
return temp
def show(self):
print("this is Itcast")
s = Itcast("python")
print("--------1--------")
print(s.subject1)
print("--------2--------")
print(s.subject2)
print("--------3--------")
s.show()
print("--------4--------")
输出
--------1-------- ---1>subject1 log subject1 redirect python --------2-------- ---1>subject2 ---2>go go --------3-------- ---1>show ---2><bound method Itcast.show of <__main__.Itcast object at 0x000001F47161A860>> this is Itcast --------4--------
