当一个模型打开时就会发生自动迁移：如图2所示，如果这个系统检测到使用了旧版本的概要文件，它将提示您执行迁移。

Automatic migration happens when a model is opened: as shown in Figure 2, if the system detects that an older version of the profile is applied, it will prompt you to perform the migration.

youdao

该解决方案打开，可以在解决方案资源管理器中看到新的项目系统以及该解决方案旧版本中的文件。

The solution opens with the new project system visible in solution Explorer, plus the files from the old version of the solution.

youdao