iaas，saas，paas，daas区别：Iaas（Infrastructure as a server）：基础设施即服务，是基础层。PaaS(Platform as a Server):平台即服务，云端把客户所需的软件的平台作出租。SaaS(Software as a Server):软件即服务，拿来即用。DaaS(Data as a Service):数据即服务 iaas，saas，paas ...

China's value-added service output went up 5.4 percent year on year in 2025, data from the National Bureau of Statistics (NBS) showed Monday. The index gauging the country's service industry output ...