From 0ddb3430986065f6a248c7936c3351544615161d Mon Sep 17 00:00:00 2001
From: "qingyi.liu" <qingyival@163.com>
Date: Tue, 1 Jun 2021 12:22:46 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=20104.=E4=BA=8C=E5=8F=89?=
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---
 problems/0104.二叉树的最大深度.md | 49 +++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/problems/0104.二叉树的最大深度.md b/problems/0104.二叉树的最大深度.md
index 756afb68..5f0fe411 100644
--- a/problems/0104.二叉树的最大深度.md
+++ b/problems/0104.二叉树的最大深度.md
@@ -284,6 +284,55 @@ Python：
 
 Go：
 
+```go
+/**
+ * Definition for a binary tree node.
+ * type TreeNode struct {
+ *     Val int
+ *     Left *TreeNode
+ *     Right *TreeNode
+ * }
+ */
+func max (a, b int) int {
+    if a > b {
+        return a;
+    }
+    return b;
+}
+// 递归
+func maxDepth(root *TreeNode) int {
+    if root == nil {
+        return 0;
+    }
+    return max(maxDepth(root.Left), maxDepth(root.Right)) + 1;
+}
+
+// 遍历
+func maxDepth(root *TreeNode) int {
+    levl := 0;
+    queue := make([]*TreeNode, 0);
+    if root != nil {
+        queue = append(queue, root);
+    }
+    for l := len(queue); l > 0; {
+        for ;l > 0;l-- {
+            node := queue[0];
+            if node.Left != nil {
+                queue = append(queue, node.Left);
+            }
+            if node.Right != nil {
+                queue = append(queue, node.Right);
+            }
+            queue = queue[1:];
+        }
+        levl++;
+        l = len(queue);
+    }
+    return levl;
+}
+
+```
+
 
 JavaScript
 ```javascript