例如，Groovy不要求使用分号，变量类型和访问修饰符也是可选的。

For example, Groovy doesn't require semicolons, and it makes variable types and access modifiers optional.

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请注意，如果结构本身具有限制性更高的访问级别，这会自动限制对其成员的访问，即使您使用访问修饰符来调整其成员的访问级别也是如此。

Note that if the structure itself has a more restricted access level, this automatically restricts access to its members, even if you adjust their access levels with the access modifiers.

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包成员可以使用可见性修饰符来标记，以控制对成员的访问。

Package members may be marked with visibility modifiers to help control access to the member.

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