让支付宝支付不再困难，支持批量上传！从此，支付更容易！-Let Alipay payment is no longer difficult to support the bulk upload! Since then, cover more easily!

1.一个Activity之间相互跳转的简单代码 2.用来简单介绍淘宝支付宝钱包的功能 3.作为替代ppt的一种方式-1.Simple code mutual jump between 1 Activity 2.To introduce Taobao Alipay purse functions 3.As a way to replace the PPT.