diff --git a/detection/src/main/java/com/njcn/gather/plan/service/impl/AdPlanServiceImpl.java b/detection/src/main/java/com/njcn/gather/plan/service/impl/AdPlanServiceImpl.java
index 5dd00540..87e8e012 100644
--- a/detection/src/main/java/com/njcn/gather/plan/service/impl/AdPlanServiceImpl.java
+++ b/detection/src/main/java/com/njcn/gather/plan/service/impl/AdPlanServiceImpl.java
@@ -126,6 +126,7 @@ public class AdPlanServiceImpl extends ServiceImpl<AdPlanMapper, AdPlan> impleme
 
         //新增相关计划
         this.save(adPlan);
+        tableGenService.deleteTable(Arrays.asList(adPlan.getCode().toString()));
         tableGenService.genAdNonHarmonicTable(adPlan.getCode().toString());
         return true;
     }
diff --git a/storage/src/main/java/com/njcn/gather/storage/service/impl/TableGenServiceImpl.java b/storage/src/main/java/com/njcn/gather/storage/service/impl/TableGenServiceImpl.java
index ea125a65..1d018738 100644
--- a/storage/src/main/java/com/njcn/gather/storage/service/impl/TableGenServiceImpl.java
+++ b/storage/src/main/java/com/njcn/gather/storage/service/impl/TableGenServiceImpl.java
@@ -74,7 +74,7 @@ public class TableGenServiceImpl implements TableGenService {
                     .append(",ad_non_harmonic_result_").append(code).append(",");
         }
         sb.deleteCharAt(sb.length() - 1);
-        tableGenMapper.genAdHarmonicTable("DROP TABLE " + sb.toString());
+        tableGenMapper.genAdHarmonicTable("DROP TABLE IF EXISTS " + sb.toString());
     }
 
 
diff --git a/system/src/main/java/com/njcn/gather/system/reg/pojo/vo/SysRegResVO.java b/system/src/main/java/com/njcn/gather/system/reg/pojo/vo/SysRegResVO.java
index be317b0c..cd4a0add 100644
--- a/system/src/main/java/com/njcn/gather/system/reg/pojo/vo/SysRegResVO.java
+++ b/system/src/main/java/com/njcn/gather/system/reg/pojo/vo/SysRegResVO.java
@@ -8,7 +8,13 @@ import lombok.Data;
  */
 @Data
 public class SysRegResVO {
+    /**
+     * 注册码
+     */
     private String code;
 
+    /**
+     * 到期时间
+     */
     private String expireDate;
 }