For this example, the facade interface exposes one public method for each command, as illustrated in Listing 6.

对于这个范例，facade接口为每个command公开了一个公共方法，如清单6所示。

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To grant package execution privileges to the public, you can use the grant keyword. For example, the following command grants execute privileges on the package to public.

要向公众授予包执行权限，您可以使用grant关键字。

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