设置完成后，即使是root用户也不能删除文件，直到属性解除。

If this is set, even root cannot delete the file until the attribute is unset.

youdao

设置完成后，即使是root用户也不能删除文件，直到属性解除。

If this is set, even root cannot delete the file until the attribute is unset.

youdao