更新 README.md

README.md

@@ -8,6 +8,13 @@
 - JAVA爱好者②:361526039
 - JAVA爱好者③:571607950
 
+## 演示界面
+![模拟登陆](https://git.oschina.net/uploads/images/2017/0802/191105_d59172ca_87650.png "0.png")
+
+![模拟首页](https://git.oschina.net/uploads/images/2017/0802/191116_04d62422_87650.png "1.png")
+
+![模拟支付](https://git.oschina.net/uploads/images/2017/0802/191125_6958b9b3_87650.png "2.png")
+
 ##支付宝
 
 - 电脑支付：https://docs.open.alipay.com/270