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follow PEP585 typing (#767)

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Signed-off-by: Qingpeng Li <qingpeng9802@gmail.com>
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Qingpeng Li
2023-09-19 14:41:02 +08:00
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parent 9f59c572b5
commit 7cbe284fcf
4 changed files with 8 additions and 8 deletions
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docs/chapter_tree/binary_tree.md
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@@ -9,8 +9,8 @@
"""二叉树节点类"""
def __init__(self, val: int):
self.val: int = val # 节点值
self.left: Optional[TreeNode] = None # 左子节点引用
self.right: Optional[TreeNode] = None # 右子节点引用
self.left: TreeNode | None = None # 左子节点引用
self.right: TreeNode | None = None # 右子节点引用
```
=== "C++"