程序代码：

#include <stdio.h>
typedef void (*printDel)();
typedef struct point
{
     int x;
     printDel print;      
}point;
void print(point*);
point* new_point();

point* new_point()
{
     point* tmp=(point*)malloc(sizeof(point));
     tmp->print=print;
     return tmp;
}
void print(point* tmp)
{
     printf("%d",tmp->x);
}

int main(void)
{
    point* xy=new_point();
    xy->x=10;
    xy->print(xy);
    free(xy);
    getch();
    return 0;    
}