docs(chapter_tree/binary_tree/二叉树表示方式 *): TS code

与下图及其他编程语言示例代码不一致
hrtxzzh · Dec 27, 2022 · 142913b · 142913b
1 parent 4c9e5cc
commit 142913b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/chapter_tree/binary_tree.md b/docs/chapter_tree/binary_tree.md
@@ -461,7 +461,7 @@ comments: true
     ```typescript title=""
     /* 二叉树的数组表示 */
     // 直接使用 null 来表示空位
-    let tree = [1, 2, 3, 4, 5, 6, 7, null, null, null, null, null, null, null, null]
+    let tree: (number | null)[] = [1, 2, 3, 4, null, 6, 7, 8, 9, null, null, 12, null, null, 15];
     ```
 
 === "C"