int main()

{

int a=3,b=4;

int *p=(int *)malloc(sizeof(int));

*p=3;

int *q=(int *)malloc(sizeof(int));

*q=4;

int a2=4,b2=7;

printf("***位運算****/n");

printf("轉換前：%d %d/n",a,b);

a^=b^=a^=b;

printf("轉換后：%d %d/n",a,b);

printf("******指針運算******/n");

printf("轉換前：%d %d/n",*p,*q);

p=(int *)(p-q);

q=(int *)(q+(int)p);

p=(int *)(q-(int)p);

printf("轉換后：%d %d/n",*p,*q);

free(p);

free(q);

printf("*****算術運算*****/n");

printf("轉換前：%d %d/n",a2,b2);

a2=a2-b2;

b2=b2+a2;

a2=b2-a2;

printf("轉換后：%d %d/n",a2,b2);

return 0;

}