Pool. with Id(String id) 方法
Set the ID can contain any combination of alphanumeric characters including hyphens and underscores, and cannot contain more than 64 characters. The ID is case-preserving and case-insensitive (that is, you may not have two IDs within an account that differ only by case).
public CloudPool withId(String id)
the id value to set
the CloudPool object itself.