A.研究數(shù)據(jù)對(duì)象和數(shù)據(jù)之間的關(guān)系 B.研究數(shù)據(jù)對(duì)象 C.研究數(shù)據(jù)對(duì)象和數(shù)據(jù)的操作 D.研究數(shù)據(jù)對(duì)象、數(shù)據(jù)之間的關(guān)系和操作
A.針對(duì)非數(shù)值計(jì)算的程序設(shè)計(jì)問(wèn)題 B.針對(duì)數(shù)值計(jì)算的程序設(shè)計(jì)問(wèn)題 C.數(shù)值計(jì)算與非數(shù)值計(jì)算的問(wèn)題都針對(duì) D.兩者都不針對(duì)