Update binary_tree.md
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		| @@ -68,8 +68,7 @@ comments: true | |||||||
|         this.val = (val === undefined ? 0 : val) // 结点值 |         this.val = (val === undefined ? 0 : val) // 结点值 | ||||||
|         this.left = (left === undefined ? null : left) // 左子结点指针 |         this.left = (left === undefined ? null : left) // 左子结点指针 | ||||||
|         this.right = (right === undefined ? null : right) // 右子结点指针 |         this.right = (right === undefined ? null : right) // 右子结点指针 | ||||||
|   } |     } | ||||||
|  |  | ||||||
|     ``` |     ``` | ||||||
|  |  | ||||||
| === "TypeScript" | === "TypeScript" | ||||||
|   | |||||||
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