“status (*visitfunc)(int v)”的理解
#include <stdio.h>
typedef struct point{
int x;
int y;
}POINT;
POINT f(int a,int b){
POINT v;
v.x=a;
v.y=b;
return v;
}
main(){
POINT (*visitfunc)(int,int);
POINT temp;
visitfunc=f;
temp=visitfunc(3,5);
printf("%d %d\n",temp.x,temp.y);
}