* - this.arr：存储每日股票价格（按调用next的顺序）
// Synchronous transforms
，这一点在91视频中也有详细论述
Quick side-note: I’ll be talking a lot about OSTree in the context of CoreOS and Fedora Silverblue, but this technology isn’t exclusive to these distributions. We can also mention Fedora CoreOS, Endless OS, and even Podman’s virtual machine when on macOS or Windows.
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