填空题7@9@/g/i9C;G+s0c5K0m8W,I0V+W;|-k2L.c
1246是6y;P,s3K:B2q(v3o)u7c1\0~位数，最高位是:~:Y(B1w*^+Q5P位，4在4X7H;M7\*B1c.E4x8`1e9z位上。7@9@/g/i9C;G+s0c5K0m8W,I0V+W;|-k2L.c