[主观题]

struct w

{ char low;

char high;

};

union u

{ struct w byte;

short word;

}uw;

main( )

{ int result;

uw.word=0x1234;

printf(“word value:%04x/n”,uw.word);

printf(“high byte:%02x/n”,uw.byte.high);

printf(“low byte:%02x/n”,uw.byte.low);

uw.byte.low=0x74;

printf(“word value:%04x/n”,uw.word);

result=uw.word+0x2a34;

printf(“the result:%04x/n”,result);

}

参考答案与解析: