基金The National Natural Science Foundation of China(No.71271226No.71101159+6 种基金No.11201509)The Natural Science Foundation of Chongqing(No.cstc2012jjA00017)The Ministry of education of Humanities and Social Sciences Youth Foundation(No.11YJC630273,No.11YJC630032,No.12YJC630140)Chongqing Board of Education Science and technology research projects (No.KJ120706)Chongqing City Board of Education Science and technology research projects(No.1202010)Electronic commerce and supply chain system of open fund of Key Laboratory in Chongqing(No.2012ECSC0101)Chongqing social science planning projects(No.2010ZDJJ05)
