指针

#include <stdio.h>

int main() {
	//整数部分
	int a = 1, b = 10, c = 100;
	int *pa, *pb, *pc;
	int **ppa, **ppb, **ppc;
	pa = &a;
	pb = &b;
	pc = &c;

	ppa = &pa;
	ppb = &pb;
	ppc = &pc;
	printf("%p\t%p\t%d\t%p\t%p\n",&a,pa,*pa,ppa,*ppa);
	printf("%p\t%p\t%d\t%p\t%p\n", pb,pb,*pb,ppb,*ppb);
	printf("%p\t%p\t%d\t%p\t%p\n", pc,pc,*pc,ppc,*ppc);
	printf("\n");
	//数组部分
	int m[10] = { 1,2 }, n[10] = {10,20};
	int *pm,*pm2;
	pm = m;
	pm2 = &m;
	//m代表的是该数组最开始的一个元素的地址,等于&m[0]
	//&m代表的是数组开始的地址，当加一时，偏移量为整个数组的偏移量
	printf("%p\t%p\t%p\t%p\t%p\t%p\n", m , &m , m[0], &m[0], pm,pm2);
	printf("%p\t%p\t%p\t%p\t%p\t%p\n",m+1,&m+1,m[0]+1,&m[0]+1,pm+1,pm2+1);

	return 0;

}