iOS 微信支付链接
http://www.qinyejun.com/ios/ios-wechatpay-swift/
http://www.cnblogs.com/goodboy-heyang/p/5255818.html?from=timeline&isappinstalled=0
https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_1
http://www.qinyejun.com/ios/ios-wechatpay-swift/
http://www.cnblogs.com/goodboy-heyang/p/5255818.html?from=timeline&isappinstalled=0
https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_1