iPhone 应用内购买单件和捆绑商品
举例来说，该应用程序就像一个音乐专辑，您可以以每首 0.99 美元的价格购买单首歌曲，或者以 7.99 美元的价格一次性购买整首歌曲可以获得折扣。对于应用内购买，如果用户以每首 0.99 美元的价格购买 3 或 4 首歌曲，而现在 7.99 美元的价格比其余歌曲的总和还贵，您如何处理这种情况？
Say for example the app was like a music album where you can buy single songs for 0.99 each, or you get a discount for buying the whole thing at once at 7.99. With in-app purchase, how do you handle a scenario where the user buys 3 or 4 single songs for 0.99 each, and now 7.99 is now more expensive than the remaining songs combined?
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我能想到的唯一方法是为每个价位创建一个新的商店商品。然后，您只需向用户展示与他们已购买的曲目数量相对应的商店商品。这可能会是一个巨大的痛苦，但我不知道有任何自动化的方法来处理它。
换句话说，假设您的专辑有 5 首曲目。您当前拥有的是：
您需要的是：
然后，您必须根据您自己的用户已购买商品的记录来确定向用户提供哪些商品。
The only way I can think of is to create a new store item for every price point. Then you would just surface the store item to the user that corresponded to the number of tracks they'd already bought. This would probably be a huge pain in the ass, but I don't know of any automated way to handle it.
In other words, let's say your album has 5 tracks. What you currently have is:
What you would need is:
You would then yourself have to determine which item to offer the user, based on your own records of what they've already purchased.