diff --git a/flyfish-data/src/main/java/com/flyfish/framework/domain/base/Vo.java b/flyfish-data/src/main/java/com/flyfish/framework/domain/base/Vo.java
index d5b420d..a7abc3f 100644
--- a/flyfish-data/src/main/java/com/flyfish/framework/domain/base/Vo.java
+++ b/flyfish-data/src/main/java/com/flyfish/framework/domain/base/Vo.java
@@ -6,4 +6,12 @@ package com.flyfish.framework.domain.base;
  * @param <T> 泛型
  */
 public interface Vo<T> {
+
+    /**
+     * 赋值，从po转换的逻辑
+     *
+     * @param po 数据库实体
+     * @return 结果
+     */
+    Vo<T> from(T po);
 }