From f22c658d365595a080ff5b516a3f2fca775e0ae6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=93=88=E5=93=88=E5=93=88?=
 <76643786+Projecthappy@users.noreply.github.com>
Date: Wed, 31 May 2023 22:50:48 +0800
Subject: [PATCH] =?UTF-8?q?Update=200257.=E4=BA=8C=E5=8F=89=E6=A0=91?=
 =?UTF-8?q?=E7=9A=84=E6=89=80=E6=9C=89=E8=B7=AF=E5=BE=84.md?=
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---
 problems/0257.二叉树的所有路径.md | 27 ++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/problems/0257.二叉树的所有路径.md b/problems/0257.二叉树的所有路径.md
index 7bd56fbd..06153507 100644
--- a/problems/0257.二叉树的所有路径.md
+++ b/problems/0257.二叉树的所有路径.md
@@ -390,6 +390,8 @@ public:
 
 ```Java
 //解法一
+
+//方式一
 class Solution {
     /**
      * 递归法
@@ -428,9 +430,32 @@ class Solution {
         }
     }
 }
+
+//方式二
+class Solution {
+
+    List<String> result = new ArrayList<>();
+
+    public List<String> binaryTreePaths(TreeNode root) {
+        deal(root, "");
+        return result;
+    }
+
+    public void deal(TreeNode node, String s) {
+        if (node == null)
+            return;
+        if (node.left == null && node.right == null) {
+            result.add(new StringBuilder(s).append(node.val).toString());
+            return;
+        }
+        String tmp = new StringBuilder(s).append(node.val).append("->").toString();
+        deal(node.left, tmp);
+        deal(node.right, tmp);
+    }
+}
 ```
 ```java
-// 解法2
+// 解法二
 class Solution {
     /**
      * 迭代法