>>> import datetime>>> class c():    @property    def noww(self):        return datetime.datetime.now()    >>> c.noww
     
      >>> x=c()>>> x.nowwdatetime.datetime(2014, 1, 27, 13, 17, 14, 725610)>>> x.nowwdatetime.datetime(2014, 1, 27, 13, 17, 27, 8740)>>> x.noww()Traceback (most recent call last):  File "
      
       ", line 1, in 
       
            x.noww()TypeError: 'datetime.datetime' object is not callable
       
      
     

看来应该是免得每次都要敲对括号