Question

两个相同类型的指针变量可以做相加减运算吗？

Answer 1

/*指针其实就是一个地址,给你了个示例程序,你自己好好体会下.
在某种条件下相加相减是有意义的,有时却没有什么意义!
@author:banxi1988
main.c */
#include<stdio.h>
int main(int argc, char *argv[])
{
char *str="ABCDEFG";
char *p = "ilove";

printf("str:= %x,p:=%x\n",(unsigned int)str,(unsigned int)p);
printf("str+p:%x\n",(unsigned int)str+(unsigned int)p);
printf("str+p:%x\n",(unsigned int)str-(unsigned int)p);
printf("str+2:%c\n",*(str+2));
printf("str+2:%s\n",str+2);
printf("p:%c\n",*p);
return 0;
}

Answer 2

C，
两个指针相加是没有意义