关于npm unpublish的疑问，提示E405

npm 删除发布的包提示无法删除，看了一下下载量就470，这就不允许删除包的意思吗？

npm官方registry仅支持撤回72小时之内发布的包，超过时间需要联系支持邮件

from https://docs.npmjs.com/cli/unpublish#description

With the default registry (registry.npmjs.org), unpublish is only allowed with versions published in the last 72 hours. If you are trying to unpublish a version published longer ago than that, contact support@npmjs.com.