Versioning is applied on a per-item basis. So, in your example, each Item would be at version 1 when uploaded. Suppose an item is edited, then checked in and published as a major version. That item is now version 2 while the other items are still version 1. Batch deletes based on version like you suggest is pointless. Instead, just delete the items individually.
Yes. See the answer to #1. One of the customizable abilities is the ability to delete versions.
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是的。您可以自定义或创建新的权限角色（例如，您可以自定义贡献角色以禁止删除项目）请参阅：http://office.microsoft.com/en-us/sharepoint-server-help/manage-permission-levels-HA010117209.aspx
版本控制应用于每个项目基础。因此，在您的示例中，每个项目在上传时均为版本 1。假设编辑了一个项目，然后签入并发布为主要版本。该项目现在是版本 2，而其他项目仍然是版本 1。像您建议的那样基于版本进行批量删除是没有意义的。相反，只需单独删除项目即可。
是的。请参阅#1 的答案。可定制的功能之一是删除版本的能力。 是的
Yes. You can customize or create new permission roles (ex. you can customize the contribute role to disallow deleteing items) See: http://office.microsoft.com/en-us/sharepoint-server-help/manage-permission-levels-HA010117209.aspx
Versioning is applied on a per-item basis. So, in your example, each Item would be at version 1 when uploaded. Suppose an item is edited, then checked in and published as a major version. That item is now version 2 while the other items are still version 1. Batch deletes based on version like you suggest is pointless. Instead, just delete the items individually.
Yes. See the answer to #1. One of the customizable abilities is the ability to delete versions.