Windows 应用商店应用内购订阅模式
Windows Store app In-App purchase subscription model
Quite some time ago Microsoft 宣布开发人员将能够将 IAP（应用程序内购买）作为自动续订订阅进行销售，即在用户明确取消订阅之前，用户将被收取一次费用。
关于这方面的通知相当多：
Dev Center open for Windows 10 app submissions, adds new features
Are you planning to add subscriptions/recurring purchases to Windows Store?
Bernardo Zamora:
Yes. This is one of the features mentioned at Build that was going to be coming in the next few months. We’ll let all developers know when this feature is available.
Blockquote
Bernardo Zamora
Microsoft
Distributing Windows Apps to the World
New subscription support
In-app purchase capabilities will be expanded with Windows 10 to include a recurring billing, or subscription, option that will enable the Windows Store to sell subscription-based content using Store billing systems. Useful for content and productivity services, among others, this subscription capability will support the Windows Store consumer payment methods in most markets with developer-configurable time periods.
到目前为止，我在 Windows SDK 和 Windows 开发人员仪表板（应用 publication 设置）中都没有看到类似的东西。
我也未能在 MSDN 中找到有关此事的任何信息。寿命有限的耐用 IAP 不好，因为它让用户每隔一段时间明确地重新购买 IAP。
一旦 Windows 10 周年更新即将在 the 2nd of August 2016 出现并且有间接迹象表明 Windows 商店将支持 IAP 订阅，我想问 Windows 内幕计划成员了解详情。
IAP 订阅的实施方式是否有任何示例？
更新（2017 年 1 月 1 日）：
MSDN 中开始出现一些信息。有一个 StoreSubscriptionInfo class in the new Windows.Services.Store 命名空间，可用于面向 Windows 10、版本 1607 及更高版本的 UWP 应用程序。从 1st of Jan 2017 开始，StoreSubscriptionInfo class 文档指出：
Provides subscription info for a product SKU that represents a subscription with recurring billing.
Subscriptions are not currently supported by Windows Dev Center or the Store. This class exists to provide future support for subscriptions, and is not intended to be used by your code in the current release.
更新（2017 年 8 月 24 日）：
最近出现了一些有用的文档：Enable subscription add-ons for your app。很遗憾这个早期收养计划不是 public。
更新（2017 年 10 月 5 日）：
我有来自 @Stefan Wick MSFT 的更新，即他从开发团队收到的一些信息：
We are just awaiting some final validation to be completed around
subscription trials. There are a couple of apps live right now
levering IAP Subscriptions in the preview program and we plan to open
it up next to the Dev Center Insiders some time in October, followed
by general availability a short time after that if our validation
tests go as planned.
查看 Bernardo 最近的 BUILD2017 session：
https://channel9.msdn.com/events/Build/2017/B8098
订阅现在处于预览状态，今年夏天晚些时候可供所有开发者使用。
订阅功能似乎终于从神秘的“早期采用计划”转移到公开可用的“Dev Center Insider Program”，这对我们许多人来说意义重大。简而言之，任何开发人员都可以申请、加入该计划，并在此时开始提供自动定期订阅。耶。
Dev Center Insider Program feature: Subscription add-ons: Sell digital products in your app (such as app features or digital content) as add-ons, with automated recurring billing periods.
How Dev Center Insiders can try it: Choose Subscription for your add-on's product type and specify a subscription period. You must also use APIs in the Windows.Services.Store namespace to enable the subscription experience.
Date added: December 2017
Quite some time ago Microsoft 宣布开发人员将能够将 IAP（应用程序内购买）作为自动续订订阅进行销售，即在用户明确取消订阅之前，用户将被收取一次费用。
关于这方面的通知相当多：
Dev Center open for Windows 10 app submissions, adds new features
Are you planning to add subscriptions/recurring purchases to Windows Store?
Bernardo Zamora: Yes. This is one of the features mentioned at Build that was going to be coming in the next few months. We’ll let all developers know when this feature is available. Blockquote
Bernardo Zamora
Microsoft
Distributing Windows Apps to the World
New subscription support In-app purchase capabilities will be expanded with Windows 10 to include a recurring billing, or subscription, option that will enable the Windows Store to sell subscription-based content using Store billing systems. Useful for content and productivity services, among others, this subscription capability will support the Windows Store consumer payment methods in most markets with developer-configurable time periods.
到目前为止，我在 Windows SDK 和 Windows 开发人员仪表板（应用 publication 设置）中都没有看到类似的东西。
我也未能在 MSDN 中找到有关此事的任何信息。寿命有限的耐用 IAP 不好，因为它让用户每隔一段时间明确地重新购买 IAP。
一旦 Windows 10 周年更新即将在 the 2nd of August 2016 出现并且有间接迹象表明 Windows 商店将支持 IAP 订阅，我想问 Windows 内幕计划成员了解详情。
IAP 订阅的实施方式是否有任何示例？
更新（2017 年 1 月 1 日）：
MSDN 中开始出现一些信息。有一个 StoreSubscriptionInfo class in the new Windows.Services.Store 命名空间，可用于面向 Windows 10、版本 1607 及更高版本的 UWP 应用程序。从 1st of Jan 2017 开始，StoreSubscriptionInfo class 文档指出：
Provides subscription info for a product SKU that represents a subscription with recurring billing.
Subscriptions are not currently supported by Windows Dev Center or the Store. This class exists to provide future support for subscriptions, and is not intended to be used by your code in the current release.
更新（2017 年 8 月 24 日）：
最近出现了一些有用的文档：Enable subscription add-ons for your app。很遗憾这个早期收养计划不是 public。
更新（2017 年 10 月 5 日）：
我有来自 @Stefan Wick MSFT 的更新，即他从开发团队收到的一些信息：
We are just awaiting some final validation to be completed around subscription trials. There are a couple of apps live right now levering IAP Subscriptions in the preview program and we plan to open it up next to the Dev Center Insiders some time in October, followed by general availability a short time after that if our validation tests go as planned.
查看 Bernardo 最近的 BUILD2017 session： https://channel9.msdn.com/events/Build/2017/B8098
订阅现在处于预览状态，今年夏天晚些时候可供所有开发者使用。
订阅功能似乎终于从神秘的“早期采用计划”转移到公开可用的“Dev Center Insider Program”，这对我们许多人来说意义重大。简而言之，任何开发人员都可以申请、加入该计划，并在此时开始提供自动定期订阅。耶。
Dev Center Insider Program feature: Subscription add-ons: Sell digital products in your app (such as app features or digital content) as add-ons, with automated recurring billing periods.
How Dev Center Insiders can try it: Choose Subscription for your add-on's product type and specify a subscription period. You must also use APIs in the Windows.Services.Store namespace to enable the subscription experience.
Date added: December 2017