例2-13 (647.32)=6*832+4*81+7*80 +3*8-1+2*82 =(42340625) 例2-1-4 (101000111001)=(5071)=(2617) 5071◼ 例 2-1-3 ◼ 例 2-1-4 ( 647.32 )八 = 6 * 82 + 4 * 81 + 7 * 80 + 3 * 8-1 + 2 * 8-2 = ( 423.40625 )十 ( 101 000 111 001 )二 5 0 7 1 = (5071)八 = (2617)十