在查看flask API的时候对property有点困惑
class SessionMixin(object):
def _get_permanent(self):
return self.get('_permanent', False)
def _set_permanent(self, value):
self['_permanent'] = bool(value)
permanent = property(_get_permanent, _set_permanent)
del _get_permanent, _set_permanent
代码里为permanent属性通过property设置了getter和setter方法，那最后一句
del _get_permanent, _set_permanent
又是什么意思，求指教。
