#ifndef _LIST_H#define _LIST_Htypedef struct _node{	struct _node *next;	}Node;typedef struct _list{	Node *head;}List;typedef struct _searchnode{	Node *node;	struct _searchnode *next;}Snode;typedef struct _searchlist{	Snode *head;	}Slist;typedef void (*Print)(Node *data);typedef int (*Cond)(Node *node, int b);typedef void (*Deldata)(Node *node);List *createlist(void);void addnode(List *l, Node *datanode);void delnode(List *l, Cond con, Deldata del, int b);void printnode(List *l, Print printdata);Slist *searchnode(List *l, Cond con, int b);Slist *createslist(void);void addsnode(Slist *sl, Node *node);void destoryslist(Slist *sl);void printsnode(Slist *l, Print printdata);#endif