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2)Êý¾ÝÀàÐÍ
char Ò»¸ö×Ö½Ú 1 byte
int Á½¸ö×Ö½Ú 2 byte (16λϵͳ£¬ÈÏΪÕûÐÍÊÇ2¸ö×Ö½Ú)
long int Ëĸö×Ö½Ú 4 byte
float Ëĸö×Ö½Ú4 byet
double °Ë¸ö×Ö½Ú 8 byte
long double Ê®¸ö×Ö½Ú 10 byte
pointer Á½¸ö×Ö½Ú 2 byte(×¢Ò⣬16λϵͳ,µØÖ·×ÜÏßÖ»ÓÐ16λ)
µÚ1Ìâ: ¿¼²é¶Ôvolatile¹Ø¼ü×ÖµÄÈÏʶ
#include<setjmp.h>
static jmp_buf buf;
main()
{
volatile int b;
b =3;
if(setjmp(buf)!=0)
{
printf("%d ", b);
exit(0);
}
b=5;
longjmp(buf , 1);
}
ÇëÎÊ£¬Õâ¶Î³ÌÐòµÄÊä³öÊÇ
(a) 3
(b) 5
(c) 0
(d) ÒÔÉϾù²»ÊÇ
µÚ2Ìâ:¿¼²éÀàÐÍת»»
main()
{
struct node
{
int a;
int b;
int c;
};
struct node s= { 3, 5,6 };
struct node *pt = &s;
printf("%d" , *(int*)pt);
}
Õâ¶Î³ÌÐòµÄÊä³öÊÇ:
(a) 3
(b) 5
(c) 6
(d) 7
µÚ3Ìâ:¿¼²éµÝ¹éµ÷ÓÃ
int foo ( int x , int n)
{
int val;
val =1;
if (n>0)
{
if (n%2 == 1) val = val *x;
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