下列代码将十进制转化成八进制,则横线上应填入( )。
oct_number[i] = decimal % 8; decimal /= 8;
oct_number[i] = decimal / 8; decimal %/= 8;
oct_number[i++] = decimal % 8; decimal /= 8;
oct_number[i++] = decimal / 8; decimal %= 8;