深入了解C语言指针

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int n = 10;
	char *pc = (char*)&n;
	int *pi = &n;
	printf("n=%p\n", &n);
	printf("pc=%p\n", pc);
	printf("pi=%p\n", pi);
	printf("pc+1=%p\n", pc + 1);
	printf("pi+1=%p\n", pi + 1);
	return 0;
}

#define MAX 5
int arr[5];
int *p;
//指针+-整数
for(p=&arr[0] ;p<&a[MAX]; )
{
     *p++ =0;
} 

int my_strlen(char *s)//没有指针减指针
{
	char *p = s;
	while (*p != '\0')
		p++;
	return p - s;
} 

for (p = &arr[MAX]; p > &arr[0])
{
	*--p;
}