📅  最后修改于: 2022-03-11 15:01:49.085000             🧑  作者: Mango
struct node;
{
struct node* prev;
int data;
struct node* next;
};
int main()
{
struct node *head=malloc(sizeof(struct node));
head->prev=NULL;
head->data=15;
head->next=NULL:
}