From 7c702551fb72f572d9629b883243c2253996d856 Mon Sep 17 00:00:00 2001
From: frk <frk@ipip.net>
Date: Thu, 8 Apr 2021 18:41:20 +0800
Subject: =?UTF-8?q?=E6=9B=B4=E6=96=B0=E6=8E=88=E6=9D=83=E8=AF=B4=E6=98=8E?=
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 README.md | 2 ++
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diff --git a/README.md b/README.md
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@@ -20,6 +20,8 @@
 
 8、IP 地理位置数据库相关讨论 QQ 群: 346280296。
 
+9、本数据使用 CC-BY-NC-SA 4.0 授权许可。
+
 **相关链接：**
 
 1、[IP 地址库试用版下载](https://www.ipip.net/ipdb.html "IPIP.NET IP 归属地数据库")
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