python __builtins__ property类 （55）

55、'property',  获取对象的所有属性

class property(object)
 |  property(fget=None, fset=None, fdel=None, doc=None) -> property attribute
 |
 |  fget is a function to be used for getting an attribute value, and likewise
 |  fset is a function for setting, and fdel a function for del'ing, an
 |  attribute.  Typical use is to define a managed attribute x:
 |
 |  class C(object):
 |      def getx(self): return self._x
 |      def setx(self, value): self._x = value
 |      def delx(self): del self._x
 |      x = property(getx, setx, delx, "I'm the 'x' property.")
 |
 |  Decorators make defining new properties or modifying existing ones easy:
 |
 |  class C(object):
 |      @property
 |      def x(self):
 |          "I am the 'x' property."
 |          return self._x
 |      @x.setter
 |      def x(self, value):
 |          self._x = value
 |      @x.deleter
 |      def x(self):
 |          del self._x
 |
 |  Methods defined here:
 |
 |  __delete__(self, instance, /)
 |      Delete an attribute of instance.
 |
 |  __get__(self, instance, owner, /)
 |      Return an attribute of instance, which is of type owner.
 |
 |  __getattribute__(self, name, /)
 |      Return getattr(self, name).
 |
 |  __init__(self, /, *args, **kwargs)
 |      Initialize self.  See help(type(self)) for accurate signature.
 |
 |  __new__(*args, **kwargs) from builtins.type
 |      Create and return a new object.  See help(type) for accurate signature.
 |
 |  __set__(self, instance, value, /)
 |      Set an attribute of instance to value.
 |
 |  deleter(...)
 |      Descriptor to change the deleter on a property.
 |
 |  getter(...)
 |      Descriptor to change the getter on a property.
 |
 |  setter(...)
 |      Descriptor to change the setter on a property.
 |
 |  ----------------------------------------------------------------------
 |  Data descriptors defined here:
 |
 |  __isabstractmethod__
 |
 |  fdel
 |
 |  fget
 |
 |  fset