chore: 导入后端 s-file(alita-bjy-uygur, f分支)至 backend/

backend/src/main/java/com/senmesh/common/dto/ButtonDTO.java

@@ -0,0 +1,13 @@
+package com.senmesh.common.dto;
+
+import java.io.Serializable;
+
+/**
+ * @author sr on 2020-04-22 
+ */
+public class ButtonDTO implements Serializable{
+
+  /**  **/
+  private static final long serialVersionUID = -8606784819452806185L;
+
+}