倒序顺序字符转化为Int型

（1）从倒序的字符转化成int型

int MCR_COMMFUN::GetIntLittleEndian(unsigned char *buf)

{

int IntLittleEndian;

IntLittleEndian = buf[ 0 ];

IntLittleEndian <<= 8;

IntLittleEndian += buf[ 1 ];

IntLittleEndian <<= 8;

IntLittleEndian += buf[ 2 ];

IntLittleEndian <<= 8;

IntLittleEndian += buf[ 3 ];

return IntLittleEndian;

}

（2）从正序的字符转化成int型

int MCR_COMMFUN::GetIntBigEndian(unsigned char *buf)

{

int IntBigEndian;

IntBigEndian = buf[ 3 ];

IntBigEndian <<= 8;

IntBigEndian += buf[ 2 ];

IntBigEndian <<= 8;

IntBigEndian += buf[ 1 ];

IntBigEndian <<= 8;

IntBigEndian += buf[ 0 ];

return IntBigEndian;

}

(3) 从正序转化为无符号短整型

unsigned short MCR_COMMFUN::GetUShortBigEndian(unsigned char *buf)

{

unsigned short UShortBigEndian;

UShortBigEndian = buf[ 1 ];

UShortBigEndian <<= 8;

UShortBigEndian += buf[ 0 ];

return UShortBigEndian;

}