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我有以下课程。self.value和的行为self.name是相同的。只有变量名不同。我怎样才能重写它，这样我就不必仅仅因为我使用不同的变量名而定义两个本质上相同的属性定义？我可以访问 setter 和 getter 函数中的变量名，并且可以使用getattr()andsetattr()吗？

我正在使用：Jython 2.5.2

class StateMachineState(object):
def __init__(self, value, name):
    self.valueHash = None
    self.nameHash = None
    self.stateHash = None
    self.value = value
    self.name = name

def __eq__(self, other):
    return self.stateHash == other.stateHash if self.__class__ == other.__class__ else False

def __str__(self):
    return "value = %s (%s) - name = %s (%s) - (%s)" % (self.value, self.valueHash, self.name, self.nameHash, self.stateHash)

def getValue(self):
    return self._value

def setValue(self, value):
    try:
        str(value)
        hash(value)
        self.valueHash = hash(str(value) + str(value.__class__))
        self._value = value
    except:
        self.valueHash = None
        self._value = None
    self.stateHash = hash(str(self.valueHash) + str(self.nameHash))

def getName(self):
    return self._name

def setName(self, name):
    try:
        str(name)
        hash(name)
        self.nameHash = hash(str(name) + str(name.__class__))
        self._name = name
    except:
        self.nameHash = None
        self._name = None
    self.stateHash = hash(str(self.valueHash) + str(self.nameHash))

value = property(getValue, setValue)
name = property(getName, setName)
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1 回答 1

0

我能够使用包装函数解决这个问题：

class StateMachineState(object):
    def __init__(self, value, name):
        self.valueHash = None
        self.nameHash = None
        self.stateHash = None
        self.value = value
        self.name = name

    def __eq__(self, other):
        return self.stateHash == other.stateHash if self.__class__ == other.__class__ else False

    def __str__(self):
        return "( %s (%s) , '%s' (%s) ) - (%s)" % (self.value, self.valueHash, self.name, self.nameHash, self.stateHash)

    def getAttrValue(self, attrName):
        return getattr(self, '_' + attrName)

    def setAttrValue(self, attrName, value):
        valueName = '_%s' % attrName
        hashName = '%sHash' % attrName
        try:
            str(value)
            hash(value)
            setattr(self, hashName, hash(str(value) + str(value.__class__)))
            setattr(self, valueName, value)
        except:
            setattr(self, hashName, None)
            setattr(self, valueName, None)
        self.stateHash = hash((self.valueHash, self.nameHash))

    def getValue(self):
        return self.getAttrValue('value')

    def setValue(self, value):
        self.setAttrValue('value', value)

    def getName(self):
        return self.getAttrValue('name')

    def setName(self, name):
        self.setAttrValue('name', name)

value = property(getValue, setValue)
name = property(getName, setName)
于 2017-09-03T19:47:11.537 回答