使用指针递增存贮在其他变量中的值

#include <stdio.h>int main(void){long num1=0L;long num2=0L;long *pnum=NULL;pnum=&num1;*pnum=2;++num2;num2+=*pnum;pnum=&num2;++*pnum;printf("\nnum1=%1d num2=%1d *pnum=%1d *pnum+num2=%1d\n",num1,num2,*pnum,*pnum+num2);return 0;} //如果后置必须写成(*pnum)++//