１． 100 N=3 110 DIM A(N,N+1) 120 ' 130 FOR J=1 TO N: FOR K=1 TO N+1: READ A(J,K): NEXT K: NEXT J 140 FOR J=1 TO N: FOR K=1 TO N+1: PRINT A(J,K);:NEXT K: PRINT: NEXT J:PRINT 150 ' 160 FOR I=1 TO N 170 T = A(I,I): FOR K=1 TO N+1: A(I,K) = A(I,K) / T: NEXT K 180 FOR J=1 TO N 190 IF J<>I THEN T = A(J,I): FOR K=1 TO N+1: A(J,K) = A(J,K) - T*A(I,K):NEXT K 200 NEXT J 210 FOR J=1 TO N: FOR K=1 TO N+1: PRINT A(J,K);:NEXT K: PRINT: NEXT J:PRINT 220 NEXT I 230 ' 240 FOR I=1 TO N: PRINT A(I,N+1): NEXT I 250 ' 260 DATA 2, 1, 1, 2 270 DATA 2, 3, 1, 4 280 DATA 1, 1, 3, -1
