diff --git a/id/id.c b/id/id.c
new file mode 100644
index 0000000..d2c860c
--- /dev/null
+++ b/id/id.c
@@ -0,0 +1,30 @@
+//
+//  id.c
+//  ZE-Standard-Libraries
+//
+//  Created by 胡一兵 on 2018/7/25.
+//  Copyright © 2018年 ZE. All rights reserved.
+//
+
+#include "id.h"
+
+void init_rand(void) {
+    srand((unsigned)time(NULL));
+}
+
+unsigned long long getId(void) {
+    int i;
+    unsigned long long id = 0;
+    id = ((rand() % 9) + 1);
+    for (i = 0; i < 15; i++) {
+        id *= 10;
+        id += rand() % 10;
+    }
+    return id;
+}
+
+char *getS_id(void){
+    
+    return NULL;
+}
+
diff --git a/id/id.h b/id/id.h
new file mode 100644
index 0000000..fe9981a
--- /dev/null
+++ b/id/id.h
@@ -0,0 +1,22 @@
+//
+//  id.h
+//  ZE-Standard-Libraries
+//
+//  Created by 胡一兵 on 2018/7/25.
+//  Copyright © 2018年 ZE. All rights reserved.
+//
+
+#ifndef id_h
+#define id_h
+
+#include <stdlib.h>
+#include <time.h>
+
+/*有关id的函数*/
+void init_rand(void);
+unsigned long long getId(void);
+
+/*有关s_id函数*/
+char *getS_id(void);
+
+#endif /* id_h */
diff --git a/list/list.c b/list/list.c
index 4afc44d..a4a2a08 100644
--- a/list/list.c
+++ b/list/list.c
@@ -121,21 +121,6 @@ int initMallocValueForNode(Node *p_node, int type, void *p_value) {
     return 0;
 }
 
-void init_rand(void) {
-    srand((unsigned)time(NULL));
-}
-
-unsigned long long getId(void) {
-    int i;
-    unsigned long long id = 0;
-    id = ((rand() % 9) + 1);
-    for (i = 0; i < 15; i++) {
-        id *= 10;
-        id += rand() % 10;
-    }
-    return id;
-}
-
 int insertInHead(List *p_list, Node *p_node) {
     if (isListEmpty(p_list)) {
         p_list->head = p_node;
diff --git a/list/list.h b/list/list.h
index defec7f..f9496de 100644
--- a/list/list.h
+++ b/list/list.h
@@ -6,6 +6,7 @@
 #include <string.h>
 #include <time.h>
 #include "../type/type.h"
+#include "../id/id.h"
 
 typedef struct Node{
     unsigned long long id;//唯一标识符
@@ -34,10 +35,6 @@ Node *initNode(void);
 
 int initMallocValueForNode(Node *,int,void *);//赋予已分配内存的值，并标明类型
 
-/*有关id的函数*/
-void init_rand(void);
-unsigned long long getId(void);
-
 /*插入函数*/
 int insertInHead(List *p_list, Node *p_node);
 int insertInTail(List *p_list, Node *p_node);
diff --git a/tree/tree_expand.h b/tree/tree_expand.h
index a4236a2..bec0086 100644
--- a/tree/tree_expand.h
+++ b/tree/tree_expand.h
@@ -20,5 +20,8 @@ int printTNode(TNode *p_tnode, int priority);
 
 unsigned long long calTreeMemory(Tree *);
 int _doCalTreeMemory(TNode *p_tnode, unsigned long long height);
+
+List *treeToList(Tree *p_tree);
+
 
 #endif
diff --git a/type/type.h b/type/type.h
index 199e088..cd7a83c 100644
--- a/type/type.h
+++ b/type/type.h
@@ -15,6 +15,8 @@
 #define STRING 3
 #define POINTER 4
 #define LIST 5
+#define STACK 6
+#define TREE 7