diff --git a/list/list_easy.h b/list/list_easy.h
index 5df9833..fe3d50d 100644
--- a/list/list_easy.h
+++ b/list/list_easy.h
@@ -4,11 +4,67 @@
 #define LIST_EASY_H
 
 Node *new_nodeWithInt(int);
-Node *new_nodeWithFloat(int);
-Node *new_nodeWithString(int);
+Node *new_nodeWithDouble(double);
+Node *new_nodeWithString(const char *);
 Node *new_nodeWithPointer(void *);
-Node *find_nodeByInt(int);
-Node *find_nodesByInt(int);
-int list_through(List *p_list,void *p_func(void *));//Go through the list.Call p_func every time.
+Node *find_nodeByIndex(List *, unsigned long long);
+int list_through(List *p_list, int (*p_func)(void *, const char *));//Go through the list.Call p_func every time.
 
+
+Node *new_nodeWithInt(int m_int){
+	int *p_int = (int *)malloc(sizeof(int));
+	*p_int = m_int;
+	Node *p_node = init_node();
+	init_value(p_node,"int",(void *)p_int);
+	return p_node;
+}
+
+Node *new_nodeWithDouble(double m_double){
+	double *p_double = (double *)malloc(sizeof(double));
+	*p_double = m_double;
+	Node *p_node = init_node();
+	init_value(p_node,"double",(void *)p_double);
+	return p_node;
+}
+
+Node *new_nodeWithString(const char *m_string){
+	char *p_string = (char *)malloc(sizeof(char)*(strlen(m_string)+1));
+	strcpy(p_string,m_string);
+	Node *p_node = init_node();
+	init_value(p_node,"string",(void *)p_string);
+	return p_node;
+}
+
+Node *new_nodeWithPointer(void *m_pointer){
+	Node *p_node = init_node();
+	init_value(p_node,"pointer",(void *)m_pointer);
+	return p_node;
+}
+
+Node *find_nodeByIndex(List *p_list, unsigned long long m_index){
+	Node *p_node = p_list->head;
+	for(unsigned long long i= 0; i < m_index; i++){
+		p_node = p_node->next;
+	}
+	return p_node;
+}
+
+int list_through(List *p_list, int (*p_func)(void *, const char *)){
+	Node *p_node = p_list->head;
+	while(p_node != NULL){
+		if(p_node->if_setvalue == 1){
+			int m_return = (*p_func)(p_node->value, p_node->type);
+			if (m_return == -1) break;
+			else if (m_return == 1){
+				p_node = p_node->last;
+				continue;
+			}
+			else{
+				
+			}
+		}
+		p_node = p_node->next;
+	}
+	return 0;
+}
 #endif