From 95ce462cb7584ae77ae3402bf9811034536a0d38 Mon Sep 17 00:00:00 2001
From: vany5921 <908744431@qq.com>
Date: Tue, 13 Oct 2020 13:47:30 +0800
Subject: [PATCH] Update 4relay.md

---
 docs/zh_CN/unit/4relay.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/zh_CN/unit/4relay.md b/docs/zh_CN/unit/4relay.md
index a8595002..a91696b1 100644
--- a/docs/zh_CN/unit/4relay.md
+++ b/docs/zh_CN/unit/4relay.md
@@ -71,7 +71,7 @@
     <div style="background-color:white;">
         <div><img src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/image/easyloader_intro.webp"></div>
         <div class="easyloader-btn">
-            <a href="">Windows</a>
+            <a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/Windows/UNIT/For%20M5Core/EasyLoader_4_Relay_Unit.exe">Windows</a>
             <a href="https://m5stack.oss-cn-shenzhen.aliyuncs.com/EasyLoader/MacOS/UNIT/EasyLoader_4Relay_Unit_for_M5Core.dmg">MacOS</a>
         </div>
     </div>
@@ -103,7 +103,7 @@
 
 ### 1. Arduino IDE
 
-[点击这里获取Arduino示例程序]()
+[点击这里获取Arduino示例程序](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Unit/4-relay)
 
 <script>