C字节逆序

	unsigned char src = 0x80;
	unsigned char des = 0;
	unsigned char tmp = 0;
	int i=0;
	for(;i<8;i++)
	{
		

		tmp=src&0x80;
		des|=(tmp>>(7-i));
		src<<=1;
		
	}
	printf("0x%x\n",des);