Description：

T=Title（Book title, title），A=Author（Responsible Person），K=Subject，P=Publication name，PU=Publisher name，O=Mechanism（Author unit, degree granting unit, patent applicant），L=Picture classification，C=Subject Classification，U=All fields，Y=Year（Publication year, degree year, standard release year）

Retrieval example：

Example 1: (K = Library Science OR K = Informatics) AND A = Fan Bingsi AND Y = 1982-2016
Example 2: P = Computer Application and Software AND (U = C ++ OR U = Basic) NOT K = Visual AND Y = 2011-2016