回复 7楼 TonyDeng
问题的关键不在这里、关键不是如何达到最终的目的,我最关心的问题其实是开始的swap函数为什么为出错、
因为本身这本来也没有什么现实意义

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程序代码:#include <stdio.h>
void swap(int*, int*);
int main(void)
{
int i;
int j;
int *pointer_max;
int *pointer_min;
scanf("%d",&i);
scanf("%d",&j);
pointer_max = &i;
pointer_min = &j;
if(i < j)
swap(pointer_max, pointer_min);
printf("max = %d , min = %d\n", *pointer_max,*pointer_min);
return 0;
}
void swap(int* pointer_1, int* pointer_2)
{
int p;
p = *pointer_1;//将pointer1指向的变量的值赋给p
*pointer_1 = *pointer_2;//将pointer2指向的变量的值赋给pointer1指向的变量
*pointer_2 = p;//将p的值赋给pointer2指向的变量
}


程序代码:#include <stdio.h>
int main(void)
{
int i;
int j;
int *pointer_max;
int *pointer_min;
scanf("%d",&i);
scanf("%d",&j);
pointer_max = &i;
pointer_min = &j;
if(i < j)
{
int* p;
p = pointer_max;
printf("p=%p,pointer_max=%p\n",p,pointer_max);
pointer_max = pointer_min;
printf("pointer_max=%p,pointer_min=%p\n",pointer_max,pointer_min);
pointer_min = p;
printf("pointer_min=%p,p=%p\n",pointer_min,p);
printf("pointer_max=%p,pointer_min=%p\n",pointer_max,pointer_min);
}
printf("pmax = %p , pmin = %p\n", pointer_max,pointer_min);
printf("max=%d,min=%d",*pointer_max,*pointer_min);
return 0;
}
