code]#include "stdio.h"
 
struct node
{
    char *p;
};
 
int main(void)
{
    struct node *a = (struct node *)malloc(sizeof(struct node));
    a->p = "hello";
    //strcpy(a->p, "hello");
    printf("%s\n", a->p);
    return 0;
}[code]

好像也没看出啥错，补个stdlib.h再试试