#include <stdio.h>void swap(/**/ int *p1,int *p2 ? ? /**/)?{ int sum;? sum = *p1+*p2;? *p1 =/**/*p2 ? ? ? /**/; ?? *p2 = sum-*p1;}void main(){? int x,y;? printf("please input 2 numbers:\n");? scanf("%d,%d",&x,&y);? printf("\nOriginal: x=%d y=%d\n",x,y);? swap(&x,&y);? printf("\nNow: x=%d y=%d\n",x,y);? getch();}不太懂第二個(gè)空填什么，求大神指點(diǎn)下，謝謝。