From 270757a277ffd0c58c0a09805e694f7dfe6858ff Mon Sep 17 00:00:00 2001
From: Jerry-306 <82520819+Jerry-306@users.noreply.github.com>
Date: Thu, 23 Sep 2021 08:54:00 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=200053=20=E6=9C=80=E5=A4=A7?=
 =?UTF-8?q?=E5=AD=90=E5=BA=8F=E5=92=8C=20JavaScript=20=E8=A7=A3=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

既然已经知道dp数组长度，初始化时就应该创建一个固定长度的数组，而不是直接用 [nums[0]] 代替，这样会影响性能
---
 problems/0053.最大子序和（动态规划）.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/problems/0053.最大子序和（动态规划）.md b/problems/0053.最大子序和（动态规划）.md
index 1efd7e12..4c2a2944 100644
--- a/problems/0053.最大子序和（动态规划）.md
+++ b/problems/0053.最大子序和（动态规划）.md
@@ -173,7 +173,8 @@ JavaScript：
 ```javascript
 const maxSubArray = nums => {
     // 数组长度，dp初始化
-    const [len, dp] = [nums.length, [nums[0]]];
+    const len = nums.length;
+    let dp = new Array(len).fill(0);
     // 最大值初始化为dp[0]
     let max = dp[0];
     for (let i = 1; i < len; i++) {