在 Unity 编辑器中确定进入运行模式选项的标志。
| None | 进入运行模式后，可使 Unity 重新加载 .NET 应用程序域和整个场景。 |
| DisableDomainReload | 禁用域重新加载后，在进入运行模式时，不会重新加载脚本。因为无需销毁、创建和重新加载 .NET 应用程序域，所以可更快地切换到运行模式。 |
| DisableSceneReload | 禁用场景重新加载后，Unity 会重置场景状态，并在进入运行模式时模拟所有必要的后处理器调用，而不是重新加载整个场景。因为无需销毁、创建和唤醒所有场景对象并从磁盘序列化和反序列化场景，所以可更快地切换到运行模式。 |
| DisableSceneBackupUnlessDirty | When enabled, this reduces the time taken to enter play mode by only backing up scenes marked dirty, but can result in data loss in certain situations. |
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