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Update tree.md

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wuliaojizhi 2023-05-18 17:39:50 +08:00 committed by GitHub
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docs/cs-basics/data-structure/tree.md
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@ -176,8 +176,8 @@ public void postOrder(TreeNode root){
if(root == null){
return;
}
postOrder(root.left);
postOrder(root.right);
postOrder(root.left);
system.out.println(root.data);
}
```