diff --git a/panda-jdbc/src/main/java/org/panda/jdbc/helper/DataBaseHelper.java b/panda-jdbc/src/main/java/org/panda/jdbc/helper/DataBaseHelper.java
index e597a50..52f5e2f 100644
--- a/panda-jdbc/src/main/java/org/panda/jdbc/helper/DataBaseHelper.java
+++ b/panda-jdbc/src/main/java/org/panda/jdbc/helper/DataBaseHelper.java
@@ -210,6 +210,12 @@ public class DataBaseHelper {
         return rowNum;
     }
 
+    /**
+     *  新增数据
+     * @param obj
+     * @param abstractDbBuiler
+     * @return
+     */
     public static boolean insertEntity(Object obj, AbstractDbBuiler abstractDbBuiler) {
         Map<String, Object> fieldMap = BeanUtil.getFieldValue(obj);
         String sql = abstractDbBuiler.insertSql(obj, fieldMap);
@@ -217,6 +223,13 @@ public class DataBaseHelper {
         return executeUpdate(sql, params) == 1;
     }
 
+    /**
+     *  更新数据
+     * @param obj
+     * @param abstractDbBuiler
+     * @param id
+     * @return
+     */
     public static boolean updateEntity(Object obj, AbstractDbBuiler abstractDbBuiler, Long id) {
         Map<String, Object> fieldMap = BeanUtil.getFieldValue(obj);
         String sql = abstractDbBuiler.insertSql(obj, fieldMap);
@@ -227,6 +240,13 @@ public class DataBaseHelper {
         return executeUpdate(sql, params) == 1;
     }
 
+    /**
+     * 删除数据
+     * @param obj
+     * @param abstractDbBuiler
+     * @param id
+     * @return
+     */
     public static boolean deleteEntity(Object obj, AbstractDbBuiler abstractDbBuiler, Long id) {
         Map<String, Object> fieldMap = BeanUtil.getFieldValue(obj);
         String sql = abstractDbBuiler.deleteSql(obj, fieldMap);