diff --git a/code/DynamicDao.java b/code/DynamicDao.java
new file mode 100644
index 0000000..e098052
--- /dev/null
+++ b/code/DynamicDao.java
@@ -0,0 +1,13 @@
+package com.dao;
+import java.sql.SQLException;
+import java.util.*;
+import com.domain.Dynamic;
+
+public interface DynamicDao extends Dao{
+	
+//	public PostCheck findDyid(int Dyid) throws SQLException;
+    public List<Dynamic> listDynamic()throws SQLException;
+	public int removeDynamic(int Dyid)throws SQLException;
+    
+}
+