接口分层结构
- com.alibaba.nacos.api.naming.selector.NamingContext
- com.alibaba.nacos.api.selector.client.Selector<C,
E> - com.alibaba.nacos.api.naming.selector.NamingSelector
- com.alibaba.nacos.api.selector.client.SelectResult<T>
- com.alibaba.nacos.api.naming.selector.NamingResult