From 541250a3b9b6a81e347217728055e14b20cf9371 Mon Sep 17 00:00:00 2001
From: yurj26 <1816387074@qq.com>
Date: Wed, 27 Mar 2024 11:24:39 +0800
Subject: [PATCH] docs: update button.md

---
 docs/component/button.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/component/button.md b/docs/component/button.md
index 6f7dda2d3..9c411c2ce 100644
--- a/docs/component/button.md
+++ b/docs/component/button.md
@@ -49,6 +49,7 @@
 
 - **注1：``button-hover`` 默认为 ``{background-color: rgba(0, 0, 0, 0.1); opacity: 0.7;}``**
 - ```open-type="launchApp"```时需要调起的APP接入微信OpenSDK[详见](https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/launchApp.html)
+- 微信小程序、Web、App平台 button组件的默认边框宽度为0.5px，不会占据实际的渲染宽高；当type属性为plain时，边框宽度是1px，如果未指定元素的宽高，此时边框宽度会占据实际渲染宽高。
 
 ## size 有效值
 
-- 
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