Python操作Excel（将父子级表头生成树状结构）

import re
 
class Node:
    '''
    容器，用来存储前后节点信息
    '''
    __slot__=[]
    def __init__(self,val,next_,pre,name,no):
        self.val = val
        self.next = next_
        self.pre = pre
        self.name = name
        self.no = no
 
class Tree:
    def __init__(self,li):
        self.root = Node(-1,[],None,'',-1)
        cur_node = self.root
        for no,i,name in li:
            name = re.sub(r'[ ]+','',name)
            while i<cur_node.val:
                cur_node = cur_node.pre
            node_ = Node(i,[],cur_node,name,no)
            if i>cur_node.val:
                cur_node.next.append(node_)
                node_.name = cur_node.name+'_'+node_.name if cur_node.name!='' else node_.name
            elif i == cur_node.val:
                node_.pre = cur_node.pre
                cur_node.pre.next.append(node_)
                node_.name = cur_node.pre.name+'_'+node_.name if cur_node.pre.name!='' else node_.name
            cur_node = node_
    def newNameDict(self):
        if self.root.next:
            res = dict()
            queue = [self.root]
            while queue:
                cur = queue.pop(-1)
                if cur.no==-1:
                    pass
                else:
                    res[cur.no] = cur.name
                if cur.next:
                    for i in cur.next:
                        queue.append(i)
            return res
 
                    pass