如果我想要t更新,不要w,怎么办?

On 7/12/06, linda. s <samrobertsmith at gmail.com> wrote:
> 糊涂了,我忘记其实新的tree产生了,是w不是t.
> >>> w=t.list2Tree(test[1:])
> >>> w
> <__main__.BinaryTree instance at 0x00BA78F0>
> >>> w.printTree()
> Capricorn
> Aquarius
> Cancer
> Pices
>
> On 7/12/06, linda. s <samrobertsmith at gmail.com> wrote:
> > 我加了个list2tree,结果只跑出Capricorn,list2tree什么错吗?
> > >>> test=['Capricorn', 'Aquarius', 'Cancer', 'Pices']
> > >>> t=BinaryTree(test[0])
> > >>> t.list2Tree(test[1:])
> > >>> t.printTree()
> > Capricorn
> >
> > class BinaryTree:
> >
> >  def __init__(self, key, left=None, right=None, parent=None):
> >     self.key = key
> >     self.left = left
> >     self.right = right
> >     self.parent = parent
> >
> >    def list2Tree(self,ls):
> >        nt=BinaryTree(self.key)
> >        for node in ls:
> >            nt.addNode(node)
> >        return nt
> >
> >  def addNode(self,key):
> >     """Add a node in the proper location."""
> >     if key < self.key:
> >         if self.left:
> >             self.left.addNode(key)
> >         else:
> >             self.left = BinaryTree(key, parent=self)
> >     elif key > self.key:
> >         if self.right:
> >             self.right.addNode(key)
> >         else:
> >             self.right = BinaryTree(key, parent=self)
> >
>

def list2Tree(self,ls):
    for node in ls:
      self.addNode(node)
    return self

这样将 ls 所有元素 添加到 树上



On 7/12/06, linda. s <samrobertsmith at gmail.com> wrote:
>
> 如果我想要t更新,不要w,怎么办?
>
> On 7/12/06, linda. s <samrobertsmith at gmail.com> wrote:
> > 糊涂了,我忘记其实新的tree产生了,是w不是t.
> > >>> w=t.list2Tree(test[1:])
> > >>> w
> > <__main__.BinaryTree instance at 0x00BA78F0>
> > >>> w.printTree()
> > Capricorn
> > Aquarius
> > Cancer
> > Pices
> >
> > On 7/12/06, linda. s <samrobertsmith at gmail.com> wrote:
> > > 我加了个list2tree,结果只跑出Capricorn,list2tree什么错吗?
> > > >>> test=['Capricorn', 'Aquarius', 'Cancer', 'Pices']
> > > >>> t=BinaryTree(test[0])
> > > >>> t.list2Tree(test[1:])
> > > >>> t.printTree()
> > > Capricorn
> > >
> > > class BinaryTree:
> > >
> > >  def __init__(self, key, left=None, right=None, parent=None):
> > >     self.key = key
> > >     self.left = left
> > >     self.right = right
> > >     self.parent = parent
> > >
> > >    def list2Tree(self,ls):
> > >        nt=BinaryTree(self.key)
> > >        for node in ls:
> > >            nt.addNode(node)
> > >        return nt
> > >
> > >  def addNode(self,key):
> > >     """Add a node in the proper location."""
> > >     if key < self.key:
> > >         if self.left:
> > >             self.left.addNode(key)
> > >         else:
> > >             self.left = BinaryTree(key, parent=self)
> > >     elif key > self.key:
> > >         if self.right:
> > >             self.right.addNode(key)
> > >         else:
> > >             self.right = BinaryTree(key, parent=self)
> > >
> >
>
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