From 875f732ce7afc7d199e6398b00712ff99cfb5a0a Mon Sep 17 00:00:00 2001
From: ECH2O <zengmeng@hrbeu.edu.cn>
Date: Fri, 7 Sep 2018 16:25:26 +0800
Subject: [PATCH] Update README.md

---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 7cfb8d8..a3916b4 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,8 @@
 # 使用方法
 
 登录支付宝网页版，获取 cookie 与 userid 替换到 applicatio.properties 运行即可
+
+
+# 原理与拓展
+
+设置收款码，收款理由填自己的商品id，生成随机订单号给当前用户