[1]MOE International Joint Lab of Trustworthy Software,East China Normal University,Shanghai 200062,China;
[2]Hunan Xinmao Smart Energy Co.Ltd.,Changsha 410205,Hunan,China;
[3]Center for Assessment and Development of Real Estate,Shenzhen 518040,China;
[3]Center for Assessment and Development of Real Estate,Shenzhen 518040,China;
[4]THS Research Center for CIM,Research Institute of Tsinghua University in Shenzhen,Shenzhen 518057,China;
Smart city; The Belt and Road Initiative; policy; financing;