commit 64612cf8c6104b8a822df45aee702d9c0e180426
Author: hugh <hugh@fanruan.com>
Date:   Fri Apr 16 18:17:08 2021 +0800

    Initial commit

diff --git a/README.md b/README.md
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+# demo-extension-button-provider
+
+导出类型扩展接口demo
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