OpenAction 对当前选中文件启动“关联的”程序。

OpenAction launches the "associated" program on the currently selected file.

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数据库下拉列表自动更新为显示在选中文件中定义的所有数据库。

The database drop-down list is automatically updated to display all databases defined in the selected file.

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现在让我们看看已选中文件的数目如何改变打开操作(图8)。

Now let's see how the number of selected files changes the open action (Figure 8).

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