python __init__ 实例化对象

__init__  实例化对象,__init__并不相当于C#中的构造函数，执行它的时候，实例已构造出来了。

class Node:
 def __init__(self, value):
    self._value = value
    self._children = []

# Example
if __name__ == '__main__':
  root = Node(0)
  print root
  print type(root)

C:Python27python.exe C:/Users/TLCB/PycharmProjects/untitled/mycompany/Django/a31.py
<__main__.Node instance at 0x01C5BDF0>
<type 'instance'>