如何写出优雅的Python之设置class缺省值

Class myClass
def __init__(self,datalen=None,times=None):
if datalen == None :
self.datalen = 1024
else :
self.datalen = datalen

if times == None:
slef.times = 1024*1024
else :
self.times = times

def __init__(self,datalen=None,times=None):

self.datalen = datalen if datalen is not None else 1024

self.times = times if times is not None else 1024*1024