void fun(int x,int y) {x=x+y;y=x-y;x=x-y; printf("%d,%d,",x,y); } main() {int x=2,y=3; fun(x,y); privoid fun(int x,int y){x=x+y;y=x-y;x=x-y;printf("%d,%d,",x,y);}main(){int x=2,y=3;fun(x,y);printf("%d,%d\n",x,y);}

void fun(int x,int y) {x=x+y;y=x-y;x=x-y; printf("%d,%d,",x,y); } main() {int x=2,y=3; fun(x,y); privoid fun(int x,int y){x=x+y;y=x-y;x=x-y;printf("%d,%d,",x,y);}main(){int x=2,y=3;fun(x,y);printf("%d,%d\n",x,y);}
void fun(int x,int y) {x=x+y;y=x-y;x=x-y; printf("%d,%d,",x,y); } main() {int x=2,y=3; fun(x,y); pri
void fun(int x,int y)
{x=x+y;y=x-y;x=x-y;
printf("%d,%d,",x,y);
}
main()
{int x=2,y=3;
fun(x,y);
printf("%d,%d\n",x,y);
}

void fun(int x,int y) {x=x+y;y=x-y;x=x-y; printf("%d,%d,",x,y); } main() {int x=2,y=3; fun(x,y); privoid fun(int x,int y){x=x+y;y=x-y;x=x-y;printf("%d,%d,",x,y);}main(){int x=2,y=3;fun(x,y);printf("%d,%d\n",x,y);}
void fun(int x,int y) //功能是把X和Y的值交换并输出,但交换后的结果不传回main.
{x=x+y;y=x-y;x=x-y;
printf("%d,%d,",x,y);
}
main()
{int x=2,y=3;
fun(x,y); //输出 3,2
printf("%d,%d\n",x,y); //由于X和Y经fun后没返回,所以X和Y的结果在main中保持原值,因此输出2,3
}