diff --git a/_04.树/_a.二叉树顺序结构.c b/_04.树/_a.二叉树顺序结构.c
index 5c84cf2..17be40b 100644
--- a/_04.树/_a.二叉树顺序结构.c
+++ b/_04.树/_a.二叉树顺序结构.c
@@ -2,7 +2,7 @@
  * @Author: Xu Bai
  * @Date: 2019-07-09 22:50:41
  * @LastEditors: Xu Bai
- * @LastEditTime: 2019-07-11 22:38:19
+ * @LastEditTime: 2019-07-11 22:44:11
  */
 #include "stdlib.h"
 #include "stdio.h"
@@ -125,7 +125,12 @@ Status Root(SqBiTree T, ElemType *e)
 }
 
 /*���ش���eλ�ã��㣬������� ���Ľ���ֵ*/
-Status Value(SqBiTree T, Position p, ElemType e)
+Status Value(SqBiTree T,Position e){
+    return T[(int)powl(2,e.level-1)+e.order-2];
+}
+
+/*������λ��e�Ľ�㸳��ֵvalue */
+Status Assign(SqBiTree T, Position p, ElemType e)
 {
     /*���㡢�������תΪ�������� */
     int i = (int)powl(2, p.level - 1) + p.order - 2;
@@ -141,4 +146,5 @@ Status Value(SqBiTree T, Position p, ElemType e)
     }
     T[i] = e;
     return OK;
-}
\ No newline at end of file
+}
+