python基于property()函數(shù)定義屬性

class Person:
  #構(gòu)造函數(shù)
  def __init__(self, name):
    self.name = name
  #設(shè)置name屬性值的函數(shù)
  def setname(self, name):
    self.name = name
  #訪問(wèn)name屬性值的函數(shù)
  def getname(self):
    return self.name
  #刪除name屬性值的函數(shù)
  def delname(self):
    self.name = "xxx"
xiaobai = Person("xiaobai")
#獲取name屬性值
print(xiaobai.getname())
#設(shè)置name屬性值
xiaobai.setname("xiaohei")
print(xiaobai.getname())
#刪除name屬性值
xiaobai.delname()
print(xiaobai.getname())

xiaobai
xiaohei
xxx

class Person:
  #構(gòu)造函數(shù)
  def __init__(self, name):
    self.__name = name #雙前導(dǎo)下劃線(私有屬性)會(huì)導(dǎo)致解釋器重寫屬性名稱，以避免子類中的命名沖突
  #設(shè)置name屬性值的函數(shù)
  def setname(self, name):
    self.__name = name
  #訪問(wèn)name屬性值的函數(shù)
  def getname(self):
    return self.__name
  #刪除name屬性值的函數(shù)
  def delname(self):
    self.__name = "xxx"
  #為name屬性配置property()函數(shù)
  name = property(getname, setname, delname, '說(shuō)明文檔')
#調(diào)取說(shuō)明文檔的兩種方式
print(Person.name.__doc__)
help(Person.name)
xiaobai = Person("xiaobai")
#獲取name屬性值
print(xiaobai.name)
#設(shè)置name屬性值
xiaobai.name = "xiaohei"
print(xiaobai.name)
#刪除name屬性值
del xiaobai.name
print(xiaobai.name)

說(shuō)明文檔
Help on property:

  說(shuō)明文檔

xiaobai
xiaohei
xxx