指针的误区

#include<stdio.h>

int main()

{

    int a =15, b = 99, c = 222;

    int *p = &a;

    printf("%d %d\n",a,*p);

    *p = b;            //此时把ｐ指向的地址存放的a的值已经被b的值重新覆盖，a=b:

    printf("%d %d\n",a,*p);

c = *p;

    printf("%d %d %d %d\n",a,b,c,*p);

    return 0;

}