x为一维地址 x = k*m*a 十k*b + c a = = ( x -l ) DIV (K*M ) b = ( ( x -l ) MOD (K*m ) ) DIVk c = ( ( x -l ) MOD (K*m ) )MOD k + l (1) x = k*m*a+k*b+c =20*30*285+12*23+8= 171000+276+8= 171284
(2)由上述公式可知, a=(X-1 ) DIV ( k *m )=(1800-l ) DIV ( 20*30)=1799 DIV 600 =自己算 b = ( ( x 一1 ) MOD ( k * m) ) DIV K=(( 1800 -1 ) MOD ( 20*30 ) ) DIV 20 = = ( 1799 MOD 600) DIV 20 = ? c = ( ( x-l ) MOD ( k *m ) ) MOD k + l = ( ( 1800 一1 ) MOD ( 20X30 ) ) MOD 20 + 1 = = ( 1 799 MOD 200 ) MOD 20 + 1 = ?