From e25a22d179edcc72cdcfbf0a57976a1b01a4f7a8 Mon Sep 17 00:00:00 2001
From: asd <374367073@qq.com>
Date: Sat, 7 Dec 2019 19:16:08 +0800
Subject: [PATCH] update

---
 2019/用node写爬虫.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/2019/用node写爬虫.md b/2019/用node写爬虫.md
index de78d29..6cee65e 100644
--- a/2019/用node写爬虫.md
+++ b/2019/用node写爬虫.md
@@ -32,4 +32,4 @@ let $=cheerio.load(res.text)
 
 eg: 获取所有class="button" 的a标签
 
-let btn=$()
\ No newline at end of file
+let btn=$("a.button")
\ No newline at end of file