演示应用 — 你已在上方看到过它的截图。我创建了一个包含三个函数的演示：change_background_color（更改背景颜色）、change_app_title（更改标题）和show_alert（显示警告对话框）。
Number (4): Everything in this space must add up to 4. The answer is 4-0, placed horizontally.
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Trade-offThe trade-off versus gVisor is that microVMs have higher per-instance overhead but stronger, hardware-enforced isolation. For CI systems and sandbox platforms where you create thousands of short-lived environments, the boot time and memory overhead add up. For long-lived, high-security workloads, the hardware boundary is worth it.