[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_28":-5,"_38":-5,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54},"routes/_store+/_readers+/email_author.$slug/route",{"_9":10,"_11":-5},"book",{"_12":13,"_14":15,"_16":17,"_18":19,"_20":21,"_22":23},"currentUser","id","Z2lkOi8vbGVhbnB1Yi9TdG9yZTo6Qm9va1Byb2R1Y3QvMzYyMDQ","title","用测试用例探索 Combine 的工作机制","state","published","contactAuthorMethod","email","aboutText","

在这个小册子里，我们会尝试用一些测试用例探寻 Combine 的工作机制。而整理这些内容的动力，则源于开发泊学 App 的时候，把代码迁移到 Combine 过程中时遇到的一个 Bug。至于这个 Bug 本身，我们会在这个册子的最后才向大家揭晓，因为只有到那个时候，你可能才真的能理解我在说什么。相信我，如果你希望尝试使用 Combine 开发一些应用，理解我们接下来要讨论的东西真的可以为你节约很多时间。因此，这不是一个 Combine 的入门教程，所以，确保你在继续之前，至少要体验过 Combine，如果你还有 RxSwift4 的开发经验，就更好了:)

这本册子中用到的全部代码，都在这里。除了文字内容之外，我们还为每一章内容录制了影片，它们也是完全免费的。影片的链接，

会放在每一章的开始，大家可以直接点击观看(无需注册)。

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Kick off your book project in 3 hours! Live workshop on Zoom. You’ll leave with a real book project, progress on your first chapter, and a clear plan to keep going. Saturday, May 2, 2026. Learn more…

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