--no commit message

com.zrqx.newbook/src/main/java/com/zrqx/newbook/bg/manage/cover/CoverDesignManage.java

@@ -67,4 +67,8 @@ public class CoverDesignManage {
             return null;
         }
     }
+
+    public Boolean delete(BookCoverDesign cover){
+        return mapper.delete(cover) > 0;
+    }
 }