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http://blog.csdn.net/q862171879/article/details/40423495
http://winann.blog.51cto.com/4424329/1601654
支付宝开放平台 ---->
https://openhome.alipay.com/doc/docIndex.htm?url=https://openhome.alipay.com/doc/viewKbDoc.htm?key=236615_236617_259881&type=info
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原文地址：http://www.cnblogs.com/jzlblog/p/4321377.html
