访问策略限制的确是每个容器，文件共享，表或队列5个存储的访问策略.而且没有办法改变这一点.该限制记录在Azure的存储可扩展性和性能目标"文档中，这里.

The access policy limit is indeed 5 stored access policies per container, file share, table, or queue. And there's no way to alter this. The limit is documented within Azure's Storage scalability and Performance Targets document, here.

注意:您能够独立于存储的访问策略来生成共享访问签名.这些限制更大(例如，您无法撤消SAS；除非时间到了，否则该SAS将一直处于活动状态，除非您删除该Blob).

Note: You are able to generate Shared Access Signatures independently of the stored access policies. These are just more limited (e.g. you cannot revoke a SAS; it's active until the time expires, unless you delete the blob).