33 lines
609 B
Python
33 lines
609 B
Python
#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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"""
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Topic: 代理迭代
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Desc :
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"""
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class Node:
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def __init__(self, value):
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self._value = value
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self._children = []
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def __repr__(self):
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return 'Node({!r})'.format(self._value)
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def add_child(self, node):
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self._children.append(node)
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def __iter__(self):
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return iter(self._children)
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# Example
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if __name__ == '__main__':
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root = Node(0)
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child1 = Node(1)
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child2 = Node(2)
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root.add_child(child1)
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root.add_child(child2)
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# Outputs Node(1), Node(2)
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for ch in root:
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print(ch)
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