A.儲存變量B.導(dǎo)入數(shù)據(jù)C.設(shè)置路徑D.設(shè)置參數(shù)
A.str 2 mat(a)B.mat 2 str(a)C.char 2 mat(a)D.char 2
A.returnB.pauseC.breakD.continue