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Update the Optional alias of Python codes.

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This commit is contained in:
Yudong Jin
2023-01-09 02:49:34 +08:00
parent 4d01436138
commit 97ee638d31
8 changed files with 37 additions and 45 deletions
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4
codes/python/chapter_tree/binary_tree_bfs.py
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@ -5,14 +5,12 @@ Author: a16su (lpluls001@gmail.com)
"""
import sys, os.path as osp
import typing
sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))
from include import *
""" 层序遍历 """
def hier_order(root: TreeNode):
def hier_order(root: Optional[TreeNode]):
# 初始化队列，加入根结点
queue = collections.deque()
queue.append(root)