“云计算”炙手可热。外资巨头宣称这是一场技术革新,纷纷抛出云战略;国内企业竞相效仿,唯恐落后于潮流;更有人忧心忡忡地称,云计算非同小可,应该拒绝外国云。然而,熙熙攘攘的背后原来都只是为了利益 “Cloud computing ” hot. Foreign giants claimed that this is a technological innovation, have thrown a cloud strategy; domestic companies compete to emulate, lest the trend behind the trend; some people are worried about that cloud computing is trivial and should be rejected foreign clouds. However, behind the bustling original only for the benefit