( 0000 ) 2 , (0001 ) 2 , (0010 ) 2 , (0011 ) 2 , (0100 ) 2 , (0101 ) 2 , (0110 ) 2 , (0111 ) 2 , (1000 ) 2 , (1001 ) 2 , (1010 ) 2 , (1011 ) 2 , (1100 ) 2 , (1101 ) 2 , (1110 ) 2 , (1111 ) 2 这些二进制数对应的十进制数分别是0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,这种说法对吗?