diff --git a/src/main/java/com/zh/project0512/controller/manage/StatisticsController.java b/src/main/java/com/zh/project0512/controller/manage/StatisticsController.java
index 60013f2..e22dd90 100644
--- a/src/main/java/com/zh/project0512/controller/manage/StatisticsController.java
+++ b/src/main/java/com/zh/project0512/controller/manage/StatisticsController.java
@@ -26,11 +26,13 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 import javax.annotation.Resource;
+import java.time.DayOfWeek;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
+import java.time.temporal.TemporalAdjusters;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Stream;
@@ -75,20 +77,20 @@ public class StatisticsController {
         DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd");
         DateTimeFormatter df2 = DateTimeFormatter.ofPattern("yyyy-MM");
         LocalDate now = LocalDateTime.now().toLocalDate();
-        LocalDate before = now.minusMonths(1);
+        LocalDate before =now.with(TemporalAdjusters.firstDayOfMonth());
         if (null != param.getDateCondition()) {
             switch (param.getDateCondition()) {
                 case 1:
                     before = now;
                     break;
                 case 2:
-                    before = now.minusWeeks(1);
+                    before = now.with(DayOfWeek.MONDAY);
                     break;
                 case 3:
-                    before = now.minusMonths(1);
+                    before = now.with(TemporalAdjusters.firstDayOfMonth());
                     break;
                 case 4:
-                    before = now.minusYears(1);
+                    before = now.with(TemporalAdjusters.firstDayOfYear());
                     break;
                 default:
             }
@@ -158,20 +160,20 @@ public class StatisticsController {
         QueryWrapper<UserEffectRecords> qw = new QueryWrapper<>();
         DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd");
         LocalDateTime now = LocalDateTime.of(LocalDateTime.now().toLocalDate(), LocalTime.MIN);
-        LocalDateTime before = now.minusMonths(1);
+        LocalDateTime before = now.with(TemporalAdjusters.firstDayOfMonth());
         if (param.getDateCondition() != null) {
             switch (param.getDateCondition()) {
                 case 1:
                     before = now;
                     break;
                 case 2:
-                    before = now.minusWeeks(1);
+                    before = now.with(DayOfWeek.MONDAY);
                     break;
                 case 3:
-                    before = now.minusMonths(1);
+                    before = now.with(TemporalAdjusters.firstDayOfMonth());
                     break;
                 case 4:
-                    before = now.minusYears(1);
+                    before = now.with(TemporalAdjusters.firstDayOfYear());
                     break;
                 default:
             }
diff --git a/src/main/java/com/zh/project0512/controller/manage/TaskController.java b/src/main/java/com/zh/project0512/controller/manage/TaskController.java
index 4683400..390eece 100644
--- a/src/main/java/com/zh/project0512/controller/manage/TaskController.java
+++ b/src/main/java/com/zh/project0512/controller/manage/TaskController.java
@@ -324,12 +324,12 @@ public class TaskController {
 
         // 添加任务标签
         List tagIdList = task.getTagList();
-        if(tagIdList !=null){
-            if(tagIdList.size()== 0){
+        if (tagIdList != null) {
+            if (tagIdList.size() == 0) {
                 taskTagService.remove(new QueryWrapper<TaskTag>().eq("taskId", id));
-            }else{
+            } else {
                 List<Map> tagListOri = taskTagService.selByTaskId(id);
-                taskTagService.remove(new QueryWrapper<TaskTag>().eq("taskId", id).notIn((tagIdList!=null&&tagIdList.size()!=0),"tagId", tagIdList));
+                taskTagService.remove(new QueryWrapper<TaskTag>().eq("taskId", id).notIn((tagIdList != null && tagIdList.size() != 0), "tagId", tagIdList));
                 List tagIdListOri = new ArrayList();
                 for (Map map : tagListOri) {
                     tagIdListOri.add(map.get("id"));
@@ -343,12 +343,12 @@ public class TaskController {
 
         // 添加任务品牌
         List brandIdList = task.getBrandList();
-        if(brandIdList !=null){
-            if(brandIdList.size()== 0){
+        if (brandIdList != null) {
+            if (brandIdList.size() == 0) {
                 taskBrandService.remove(new QueryWrapper<TaskBrand>().eq("taskId", id));
-            }else{
+            } else {
                 List<Map> brandListOri = taskBrandService.selByTaskId(id);
-                taskBrandService.remove(new QueryWrapper<TaskBrand>().eq("taskId", id).notIn((brandIdList!=null&&brandIdList.size()!=0),"brandId", brandIdList));
+                taskBrandService.remove(new QueryWrapper<TaskBrand>().eq("taskId", id).notIn("brandId", brandIdList));
                 List brandIdListOri = new ArrayList();
                 for (Map map : brandListOri) {
                     brandIdListOri.add(map.get("id"));
@@ -361,28 +361,28 @@ public class TaskController {
         }
 
         // 添加任务部门
-        List dpIdList = new ArrayList();
         List<Integer> departmentIdList = task.getDepartmentList();
-        if (departmentIdList != null && departmentIdList.size() > 0) {
-            for (Integer e : departmentIdList) {
-                dpIdList.add(e);
-            }
-        }
         List departmentGroupList = task.getDepartmentGroupList();
-        if (departmentGroupList != null && departmentGroupList.size() > 0) {
-            List<Integer> departmentIdList1 = qywxDepartmentGroupLinkService.departmentIdList(null, departmentGroupList);
+        if (departmentIdList != null && departmentGroupList != null) {
+            List dpIdList = new ArrayList();
             if (departmentIdList != null && departmentIdList.size() > 0) {
-                for (Integer e : departmentIdList1) {
+                for (Integer e : departmentIdList) {
                     dpIdList.add(e);
                 }
             }
-        }
-        if(dpIdList !=null){
-            if(dpIdList.size()== 0){
+            List<Integer> departmentIdList1 = qywxDepartmentGroupLinkService.departmentIdList(null, departmentGroupList);
+            if (departmentGroupList != null && departmentGroupList.size() > 0) {
+                if (departmentIdList != null && departmentIdList.size() > 0) {
+                    for (Integer e : departmentIdList1) {
+                        dpIdList.add(e);
+                    }
+                }
+            }
+            if (dpIdList.size() == 0) {
                 taskDepartmentService.remove(new QueryWrapper<TaskDepartment>().eq("taskId", id));
-            }else{
-                List<TaskDepartment> departmentListOri = taskDepartmentService.list(new QueryWrapper<TaskDepartment>().eq("taskId",task.getId()));
-                taskDepartmentService.remove(new QueryWrapper<TaskDepartment>().eq("taskId", id).notIn((dpIdList!=null&&dpIdList.size()!=0),"departmentId", departmentIdList));
+            } else {
+                List<TaskDepartment> departmentListOri = taskDepartmentService.list(new QueryWrapper<TaskDepartment>().eq("taskId", task.getId()));
+                taskDepartmentService.remove(new QueryWrapper<TaskDepartment>().eq("taskId", id).notIn("departmentId", departmentIdList));
                 List departmentIdListOri = new ArrayList();
                 for (TaskDepartment taskDepartment : departmentListOri) {
                     departmentIdListOri.add(taskDepartment.getDepartmentId());
@@ -393,11 +393,11 @@ public class TaskController {
                 }
             }
         }
-    taskService.upReferenceInTask(task,task.getReferenceList(),task.getReferenceUrlList());
-        taskService.upTeachRefeInTask(task,task.getTeachRefeList(),task.getTeachRefeUrlList());
+        taskService.upReferenceInTask(task, task.getReferenceList(), task.getReferenceUrlList(), true);
+        taskService.upTeachRefeInTask(task, task.getTeachRefeList(), task.getTeachRefeUrlList(), true);
         task.setUpdateAt(LocalDateTime.now());
         taskService.updateById(task);
-        return Result.success(null,"修改完成");
+        return Result.success(null, "修改完成");
     }
 
 //    @Operation(summary = "删除")
diff --git a/src/main/java/com/zh/project0512/service/ITaskService.java b/src/main/java/com/zh/project0512/service/ITaskService.java
index a2c5713..a666c02 100644
--- a/src/main/java/com/zh/project0512/service/ITaskService.java
+++ b/src/main/java/com/zh/project0512/service/ITaskService.java
@@ -31,7 +31,7 @@ public interface ITaskService extends IService<Task> {
     List<Map> taskDepartment(int taskId);
 
     // 上传任务时同时上传素材
-    Boolean upReferenceInTask(Task task,  List<Integer> referenceList, List<FileUploadParamVo> referenceUrlList) ;
+    Boolean upReferenceInTask(Task task,  List<Integer> referenceList, List<FileUploadParamVo> referenceUrlList,Boolean isUpd) ;
     // 上传任务的通用教程
-    Boolean upTeachRefeInTask(Task task,List<Integer> teachRefeList, List<FileUploadParamVo> teachRefeUrlList);
+    Boolean upTeachRefeInTask(Task task,List<Integer> teachRefeList, List<FileUploadParamVo> teachRefeUrlList,Boolean isUpd) ;
 }
diff --git a/src/main/java/com/zh/project0512/serviceImpl/TaskServiceImpl.java b/src/main/java/com/zh/project0512/serviceImpl/TaskServiceImpl.java
index d1a8619..56df30d 100644
--- a/src/main/java/com/zh/project0512/serviceImpl/TaskServiceImpl.java
+++ b/src/main/java/com/zh/project0512/serviceImpl/TaskServiceImpl.java
@@ -2,13 +2,11 @@ package com.zh.project0512.serviceImpl;
 
 import com.alibaba.fastjson.JSONObject;
 import com.baomidou.mybatisplus.core.conditions.Wrapper;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.zh.project0512.mapper.ReferenceMapper;
-import com.zh.project0512.model.Reference;
-import com.zh.project0512.model.Task;
+import com.zh.project0512.model.*;
 import com.zh.project0512.mapper.TaskMapper;
-import com.zh.project0512.model.TaskTeachRefe;
-import com.zh.project0512.model.TeachingRefe;
 import com.zh.project0512.model.vo.FileUploadParamVo;
 import com.zh.project0512.service.*;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
@@ -18,10 +16,12 @@ import org.apache.poi.ss.formula.functions.T;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import java.sql.Ref;
 import java.time.LocalDateTime;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 /**
  * <p>
@@ -73,7 +73,7 @@ public class TaskServiceImpl extends ServiceImpl<TaskMapper, Task> implements IT
     }
 
     // 上传任务时同时上传素材
-    public Boolean upReferenceInTask(Task task,  List<Integer> referenceList, List<FileUploadParamVo> referenceUrlList) {
+    public Boolean upReferenceInTask(Task task, List<Integer> referenceList, List<FileUploadParamVo> referenceUrlList,Boolean isUpd) {
         List<Integer> reference = new ArrayList<>();
         if (referenceList != null && referenceList.size() > 0) {
             for (Integer e : referenceList) {
@@ -102,13 +102,26 @@ public class TaskServiceImpl extends ServiceImpl<TaskMapper, Task> implements IT
             }
         }
         if (reference.size() > 0) {
-            taskReferenceService.addGroup(reference, task.getId());
+            if(isUpd){
+                List<TaskReference> trListOri =  taskReferenceService.list(new QueryWrapper<TaskReference>().eq("taskId", task.getId()));
+                taskReferenceService.remove(new QueryWrapper<TaskReference>().eq("taskId", task.getId()).notIn((reference != null && reference.size() != 0), "referenceId", reference));
+                List trIdListOri = new ArrayList();
+                for (TaskReference tr : trListOri) {
+                    trIdListOri.add(tr.getReferenceId());
+                }
+                List collect = (List) reference.stream().filter(item -> !trIdListOri.contains(item)).collect(Collectors.toList());
+                if (collect != null && collect.size() != 0) {
+                    taskReferenceService.addGroup(collect, task.getId());
+                }
+            }else{
+                taskReferenceService.addGroup(reference, task.getId());
+            }
         }
         return true;
     }
 
     // 上传任务的通用教程
-    public Boolean upTeachRefeInTask(Task task,List<Integer> teachRefeList, List<FileUploadParamVo> teachRefeUrlList) {
+    public Boolean upTeachRefeInTask(Task task, List<Integer> teachRefeList, List<FileUploadParamVo> teachRefeUrlList,Boolean isUpd) {
         List<TaskTeachRefe> l2 = new ArrayList<>();
         if (teachRefeList != null && teachRefeList.size() > 0) {
             List<TeachingRefe> teachingRefes = (List<TeachingRefe>) teachingRefeService.listByIds(teachRefeList);
@@ -117,15 +130,17 @@ public class TaskServiceImpl extends ServiceImpl<TaskMapper, Task> implements IT
                     .setFileUrl(e.getFileUrl()).setType(FileTypeUtil.getcontentTypeNum(e.getFileUrl().substring(e.getFileUrl().lastIndexOf("."))))));
             }
         }
-        for (
-            FileUploadParamVo e : teachRefeUrlList) {
-            String url = e.getUrl();
-            if (url != null && url.lastIndexOf(".") != -1) {
-                l2.add(new TaskTeachRefe().setTaskId(task.getId()).setCreatAt(LocalDateTime.now()).setDuration(e.getDuration())
-                    .setFileUrl(url).setType(FileTypeUtil.getcontentTypeNum(url.substring(url.lastIndexOf(".")))));
+        if (teachRefeUrlList != null && teachRefeUrlList.size() > 0) {
+            for (FileUploadParamVo e : teachRefeUrlList) {
+                String url = e.getUrl();
+                if (url != null && url.lastIndexOf(".") != -1) {
+                    l2.add(new TaskTeachRefe().setTaskId(task.getId()).setCreatAt(LocalDateTime.now()).setDuration(e.getDuration())
+                        .setFileUrl(url).setType(FileTypeUtil.getcontentTypeNum(url.substring(url.lastIndexOf(".")))));
+                }
             }
         }
         if (l2.size() > 0) {
+            taskTeachRefeService.remove(new QueryWrapper<TaskTeachRefe>().eq("taskId", task.getId()));
             taskTeachRefeService.saveBatch(l2);
         }
         return true;