python二叉树顺序存储结构代码

二叉树的顺序存储结构一般使用数组来实现，具体的实现方式如下：

class ArrayBinaryTree:
    def __init__(self, max_size):
        self.max_size = max_size
        self.array = [None] * max_size

    def add_node(self, value):
        if self.array[0] is None:
            self.array[0] = value
        else:
            i = 0
            while True:
                if self.array[i] is None:
                    self.array[i] = value
                    break
                elif value < self.array[i]:
                    i = 2 * i + 1
                else:
                    i = 2 * i + 2
                if i >= self.max_size:
                    return "Out of range"

    def pre_order_traversal(self, index):
        if index >= self.max_size or self.array[index] is None:
            return
        print(self.array[index], end=" ")
        self.pre_order_traversal(2 * index + 1)
        self.pre_order_traversal(2 * index + 2)

    def in_order_traversal(self, index):
        if index >= self.max_size or self.array[index] is None:
            return
        self.in_order_traversal(2 * index + 1)
        print(self.array[index], end=" ")
        self.in_order_traversal(2 * index + 2)

    def post_order_traversal(self, index):
        if index >= self.max_size or self.array[index] is None:
            return
        self.post_order_traversal(2 * index + 1)
        self.post_order_traversal(2 * index + 2)
        print(self.array[index], end=" ")

其中，`max_size`表示数组的最大长度，`array`表示存储二叉树节点的数组。`add_node`方法用于向二叉树添加节点，`pre_order_traversal`、`in_order_traversal`和`post_order_traversal`分别表示二叉树的先序遍历、中序遍历和后序遍历。