Pointer

#include

int main()
{
    int* p;
    printf("%pn",p);

    int a[3]={0,1,2};
    for (int i = 0; i < 3; i++)printf("%d ",a[i]);printf("n");
    for (int i = 0; i < 3; i++)printf("%d ",*(a+i));printf("n");
    p=a;
    for (int i = 0; i < 3; i++)printf("%d ",*(p+i));printf("n");
    for (int i = 0; i < 3; i++)printf("%d ",p[i]);printf("n");
    for (int i = 0; i < 3; i++)printf("%d ",*p++);printf("n");
    for (int i = -3; i < 0; i++)printf("%d ",p[i]);printf("n");

    printf("%dn",(p+1)[1]);//==>*((p+1)+1)==>*(p+2)==>p[2]
    p = a+1;
    printf("%d %dn",(-1)[p],p[-1]);//==>position can exchange


    return 0;
}