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- #include <stdio.h>
- #include <stdlib.h>
- int main(void)
- {
- int a=100;
- printf("a=%d, 記憶體位址:(%p)\n",a,&a);
- int *ptr=&a;
- printf("ptr值:(%p),位址&ptr:(%p),*ptr:(%d)\n",ptr,&ptr,*ptr);
- int b=30;
- int *ptr1=NULL;
- ptr1=&b;
- printf("ptr1值:(%p),位址&ptr1:(%p),*ptr1:(%d)\n",ptr1,&ptr1,*ptr1);
- int c=50;
- int *ptr2=NULL;
- ptr2=&c;
- printf("ptr2值:(%p),位址&ptr2:(%p),*ptr2:(%d)\n",ptr2,&ptr2,*ptr2);
- system("pause");
- return 0;
- }
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