SETS:ROW/1..10/:X,Y;LINKS(ROW,ROW):A;ENDSETS@FOR(ROW(I):X(I)=@SUM(ROW(J):A(I,J)));@FOR(ROW(J):Y(J)=@SUM(ROW(I):A(I,J)));@FOR(ROW(I):@IF(X(I)#GT#1,Y(I),2)>1);
请解释一下具体是什么意思 什么叫列元素