diff --git a/AES-front/README.md b/AES-front/README.md
index 280e500..47a158f 100644
--- a/AES-front/README.md
+++ b/AES-front/README.md
@@ -33,7 +33,9 @@ Node 安装 18 及以上
 ```shell
 # Prod Environment
 pnpm build
-```
+4.导出功能的依赖
+   ```shell
+   npm install xlsx file-saver
 
 
 ## 技术栈
diff --git a/AES-front/package-lock.json b/AES-front/package-lock.json
index 12cdbb3..8c09e4b 100644
--- a/AES-front/package-lock.json
+++ b/AES-front/package-lock.json
@@ -24,6 +24,7 @@
         "dayjs": "^1.11.10",
         "docx": "^8.5.0",
         "echarts": "^5.4.3",
+        "file-saver": "^2.0.5",
         "lodash-es": "^4.17.21",
         "mockjs": "^1.1.0",
         "pinia": "^2.1.7",
@@ -5135,6 +5136,12 @@
         "node": "^10.12.0 || >=12.0.0"
       }
     },
+    "node_modules/file-saver": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmmirror.com/file-saver/-/file-saver-2.0.5.tgz",
+      "integrity": "sha512-P9bmyZ3h/PRG+Nzga+rbdI4OEpNDzAVyy74uVO9ATgzLK6VtAsYybF/+TOCvrc0MO793d6+42lLyZTw7/ArVzA==",
+      "license": "MIT"
+    },
     "node_modules/filelist": {
       "version": "1.0.4",
       "resolved": "https://registry.npmmirror.com/filelist/-/filelist-1.0.4.tgz",
@@ -11370,6 +11377,7 @@
       "version": "0.18.5",
       "resolved": "https://registry.npmmirror.com/xlsx/-/xlsx-0.18.5.tgz",
       "integrity": "sha512-dmg3LCjBPHZnQp5/F/+nnTa+miPJxUXB6vtk42YjBBKayDNagxGEeIdWApkYPOf3Z3pm3k62Knjzp7lMeTEtFQ==",
+      "license": "Apache-2.0",
       "dependencies": {
         "adler-32": "~1.3.0",
         "cfb": "~1.2.1",
diff --git a/AES-front/package.json b/AES-front/package.json
index 537104c..46c356f 100644
--- a/AES-front/package.json
+++ b/AES-front/package.json
@@ -46,6 +46,7 @@
     "dayjs": "^1.11.10",
     "docx": "^8.5.0",
     "echarts": "^5.4.3",
+    "file-saver": "^2.0.5",
     "lodash-es": "^4.17.21",
     "mockjs": "^1.1.0",
     "pinia": "^2.1.7",
diff --git a/AES-front/src/api/admin.js b/AES-front/src/api/admin.js
index 92a8400..21ee1c7 100644
--- a/AES-front/src/api/admin.js
+++ b/AES-front/src/api/admin.js
@@ -90,4 +90,6 @@ export default {
   findPostProblem:(data)=>request.post('/problem/findPostProblem',data),
   updateSetup:(data)=>request.post('/problem/updateSetup',data),
   findStudentSubmit:(data)=>request.post('/problem/findStudentSubmit',data),
+  addTime:(data)=>request.post('/problem/addTime',data),
+
 }
diff --git a/AES-front/src/views/admin/problem/components/ProblemActions.vue b/AES-front/src/views/admin/problem/components/ProblemActions.vue
index 00dcc76..fc204c2 100644
--- a/AES-front/src/views/admin/problem/components/ProblemActions.vue
+++ b/AES-front/src/views/admin/problem/components/ProblemActions.vue
@@ -18,7 +18,7 @@
 
 <script setup>
 const emit =
-  defineEmits(['clickDelete','clickReview'])
+  defineEmits(['clickEdit','clickReview'])
 const onEdit = ()=>{
   emit('clickEdit')
 }
diff --git a/AES-front/src/views/admin/problem/components/RubricList.vue b/AES-front/src/views/admin/problem/components/RubricList.vue
index 59706b0..f095543 100644
--- a/AES-front/src/views/admin/problem/components/RubricList.vue
+++ b/AES-front/src/views/admin/problem/components/RubricList.vue
@@ -44,7 +44,6 @@ const loading =  ref(true)
 const ScoringRubricList =
   ref([])
 const role=userStore.getRole()
-const route = useRoute()
 const paginationReactive = reactive({
   page: 1,
   pageSize: 50,
diff --git a/AES-front/src/views/admin/problem/components/problem-student-action.vue b/AES-front/src/views/admin/problem/components/problem-student-action.vue
index 8cd2cc2..f4f250c 100644
--- a/AES-front/src/views/admin/problem/components/problem-student-action.vue
+++ b/AES-front/src/views/admin/problem/components/problem-student-action.vue
@@ -16,17 +16,17 @@
 <!--                style="&#45;&#45;n-width: 50px;margin-left:15px">-->
 <!--        加时-->
 <!--      </n-button>-->
-      <n-modal
-          v-model:show="showModal"
-          :mask-closable="false"
-          preset="dialog"
-          title="删除"
-          content="将删除该学生，确认？"
-          positive-text="确认"
-          negative-text="取消"
-          @positive-click="onDelete"
-          @negative-click="closes"
-      />
+<!--      <n-modal-->
+<!--          v-model:show="showModal"-->
+<!--          :mask-closable="false"-->
+<!--          preset="dialog"-->
+<!--          title="删除"-->
+<!--          content="将删除该学生，确认？"-->
+<!--          positive-text="确认"-->
+<!--          negative-text="取消"-->
+<!--          @positive-click="onDelete"-->
+<!--          @negative-click="closes"-->
+<!--      />-->
     </div>
   </div>
 </template>
@@ -43,7 +43,7 @@ const onBack = ()=>{
 const onReview = ()=>{
   emit('clickReview')
 }
-const onAddTime = ()=>{
-  emit('clickAddTime')
-}
+// const onDelete = ()=>{
+//   emit('clickDelete')
+// }
 </script>
diff --git a/AES-front/src/views/admin/problem/components/problem-student-action2.vue b/AES-front/src/views/admin/problem/components/problem-student-action2.vue
index bc0acb4..92b2294 100644
--- a/AES-front/src/views/admin/problem/components/problem-student-action2.vue
+++ b/AES-front/src/views/admin/problem/components/problem-student-action2.vue
@@ -12,7 +12,7 @@
 <!--        打回-->
 <!--      </n-button>-->
       <n-button type="primary" size="small"
-                @click="addTime"
+                @click="onAddTime"
                 style="--n-width: 50px;margin-left:15px">
         加时
       </n-button>
@@ -37,12 +37,12 @@ const emit =
   defineEmits(['clickReview','clickBack','clickAddTime'])
 const showModal=ref(false)
 
-const onBack = ()=>{
-  emit('clickBack')
-}
-const onReview = ()=>{
-  emit('clickReview')
-}
+// const onBack = ()=>{
+//   emit('clickBack')
+// }
+// const onReview = ()=>{
+//   emit('clickReview')
+// }
 const onAddTime = ()=>{
   emit('clickAddTime')
 }
diff --git a/AES-front/src/views/admin/problem/problem-add-time.vue b/AES-front/src/views/admin/problem/problem-add-time.vue
index 5d62175..562a395 100644
--- a/AES-front/src/views/admin/problem/problem-add-time.vue
+++ b/AES-front/src/views/admin/problem/problem-add-time.vue
@@ -4,7 +4,7 @@
       label-placement="left"style="margin-top: 15px;margin-left: 2%">
       <n-form
         ref="problemInfoRef"
-        :model="problemInfoValue"
+        :model="addTimeValue"
         :rules="problemAddRules"
         label-placement="left"
         label-align="right"
@@ -30,7 +30,7 @@
 <!--            <n-form-item label="有效时段:"-->
 <!--                         path="timeFrom">-->
 <!--              <n-date-picker-->
-<!--                v-model:formatted-value="problemInfoValue.timeFrom"-->
+<!--                v-model:formatted-value="addTimeValue.timeFrom"-->
 <!--                style="width: 350px"-->
 <!--                type="datetime"-->
 <!--                input-readonly-->
@@ -40,15 +40,14 @@
 <!--                :actions="['confirm']"-->
 <!--              />-->
 <!--            </n-form-item>-->
-            <n-form-item label="结束时间:"
-                         path="timeTo">
+            <n-form-item label="加时:">
               <n-date-picker
-                v-model:formatted-value="problemInfoValue.timeTo"
-                style="width: 300px"
+                v-model:formatted-value="addTimeValue.endTime"
+                style="width: 280px"
                 type="datetime"
                 input-readonly
                 placeholder="请选择结束时间"
-                format="yyyy-MM-dd HH:mm"
+                format="yyyy-MM-dd HH:mm:ss"
                 update-value-on-close
                 :actions="['confirm']"
               />
@@ -58,7 +57,7 @@
 <!--            <n-form-item label="允许补交:"-->
 <!--                         path="allow">-->
 <!--              <n-checkbox-->
-<!--                v-model:checked="problemInfoValue.allow"-->
+<!--                v-model:checked="addTimeValue.allow"-->
 <!--                @update="allow"-->
 <!--              ></n-checkbox>-->
 <!--            </n-form-item>-->
@@ -81,52 +80,63 @@
 </template>
 
 <script setup>
-import {useRouter} from "vue-router";
+import { useRoute, useRouter } from 'vue-router'
 import {ref} from "vue";
 import api from "@/api/admin";
 import { useTagsStore } from '@/store'
-import StandardsList
-  from '@/views/admin/problem/components/StandardList.vue'
-import RichTextEditor
-  from '@/components/common/RichTextEditor.vue'
+const route = useRoute()
+const { classId,problemId,studentId, history } =
+  route.query
 const tagsStore = useTagsStore()
 const path=ref('')
 const router = useRouter()
 const rules=ref(null)
-const problemInfoValue = ref({
-  name: '',
-  timeFrom: [],
-  timeTo: [],
-  allow:true
-});
+
+const addTimeValue = ref({
+  title: '',
+  startTime: [],
+  endTime: [],
+  allow:false
+})
+const loading =  ref(true)
 const problemInfoRef = ref(null)
-const descEditorHeight = ref('160px')
-const problemName = ref('作业标题')
 const cancel = ()=>{
   tagsStore.removeTag(path.value)
-  router.push({path: 'problem-list'})
 }
 const onAdd = ()=>{
   router.push({name: 'AdminProblemPostClass'})
 }
+const queryByPage = async () => {
+  loading.value = true
+  try {
+    const res = await api.findPostProblem({
+      problemId:problemId,
+      classId:classId
+    })
+    addTimeValue.value=res.data
+    console.log(addTimeValue.value)
+  } catch (err) {
+  } finally {
+    loading.value = false
+  }
+}
 const submit =async ()=>{
-  if(problemInfoValue.value.name!==''){
     try {
-      await api.Addproblem({
-        ...problemInfoValue.value
+      await api.addTime({
+        ...addTimeValue.value,
+        problemId:problemId,
+        studentId:studentId
       })
-      $message.success("添加课程成功")
+      $message.success("加时成功")
       tagsStore.removeTag(path.value)
-      await router.push({name: 'AdminProblemList'})
+      // await router.push({name: 'AdminProblemList'})
     } catch (err) {
       tagsStore.removeTag(path.value)
-      await router.push({name: 'AdminProblemList'})
+      // await router.push({name: 'AdminProblemList'})
     }
-  }else {
-    $message.error("作业名称不能为空")
-  }
 }
 onMounted(()=>{
   path.value=router.currentRoute.value.fullPath
+  queryByPage()
 })
 </script>
diff --git a/AES-front/src/views/admin/problem/problem-edit-setup.vue b/AES-front/src/views/admin/problem/problem-edit-setup.vue
index 2e8dce8..a03cdf6 100644
--- a/AES-front/src/views/admin/problem/problem-edit-setup.vue
+++ b/AES-front/src/views/admin/problem/problem-edit-setup.vue
@@ -130,23 +130,6 @@ const updateSetup =async ()=>{
 const onAdd = ()=>{
   router.push({name: 'AdminProblemPostClass'})
 }
-const submit =async ()=>{
-  if(problemInfoValue.value.name!==''){
-    try {
-      await api.Addproblem({
-        ...problemInfoValue.value
-      })
-      $message.success("添加课程成功")
-      tagsStore.removeTag(path.value)
-      await router.push({name: 'AdminProblemList'})
-    } catch (err) {
-      tagsStore.removeTag(path.value)
-      await router.push({name: 'AdminProblemList'})
-    }
-  }else {
-    $message.error("作业名称不能为空")
-  }
-}
 const queryByPage = async () => {
   loading.value = true
   try {
diff --git a/AES-front/src/views/admin/problem/problem-list.vue b/AES-front/src/views/admin/problem/problem-list.vue
index 637e1da..6810fdd 100644
--- a/AES-front/src/views/admin/problem/problem-list.vue
+++ b/AES-front/src/views/admin/problem/problem-list.vue
@@ -84,7 +84,6 @@ const options1=ref([])
 const role=userStore.getRole()
 const teacherId=ref()
 const selectedStatus=ref("")
-const today = new Date();
 const filteredData =ref([]);
 const route = useRoute()
 const { courseId, history } = route.query
@@ -329,9 +328,16 @@ const onChangePage =  (page) => {
 onMounted(()=>{
   queryByPage(paginationReactive.page)
 })
-// watch(route, () => {
-// filterData()
-// })
+watch(
+  ()=>router.currentRoute.value.fullPath,
+  ()=>{
+    if
+    (router.currentRoute.value.fullPath==='/admin/problem/problem-list') {
+      queryByPage(paginationReactive.page)
+      search(paginationReactive.page)
+    }
+  }
+)
 </script>
 <style>
 
diff --git a/AES-front/src/views/admin/problem/problem-student.vue b/AES-front/src/views/admin/problem/problem-student.vue
index cafb0b4..c0ed5b6 100644
--- a/AES-front/src/views/admin/problem/problem-student.vue
+++ b/AES-front/src/views/admin/problem/problem-student.vue
@@ -53,7 +53,8 @@
                    style='justify-content: flex-end'>
                 <n-form-item
                   v-if="selectedStatus==='weijiao'" style='margin-left: 10px;margin-right: 20px'>
-                  <n-button type="primary" style="margin-right: 10px"  @click="exportUnsubmitted">导出未交名单</n-button>
+                  <n-button type="primary"
+                            style="margin-right: 10px"  @click="exportWeijiaoTable">导出未交名单</n-button>
 
                 </n-form-item>
                 <n-form-item v-else style='margin-left: 10px;margin-right: 20px'>
@@ -77,6 +78,7 @@
         :loading="loading"
         :pagination="paginationReactive"
         :row-key="rowKey"
+        :rows="tableData"
         :scroll-x="900"
         @update:page="onChangePage"
         @update:page-size="onUpdatePageSize"
@@ -87,6 +89,8 @@
 
 <script setup>
 import {onMounted, reactive, ref, watch} from "vue";
+import { saveAs } from 'file-saver';
+import * as XLSX from 'xlsx';
 import {useRoute, useRouter} from 'vue-router'
 import api from "@/api/admin";
 import ProblemStudentAction
@@ -110,7 +114,6 @@ const submitList =
   ref([])
 const studentList =
   reactive([])
-const filteredStudentList=ref(studentList)
 const { classId,problemId, history } = route.query
 const paginationReactive = reactive({
   page: 1,
@@ -134,19 +137,19 @@ const updateColumns=()=>{
       {
         key: 'chineseName',
         title: '姓名',
-        width: '50',
+        width: '80',
         align:'center',
       },
       {
         key: 'readTime',
         title: '领取时间',
-        width: '100',
+        width: '300',
         align:'center'
       },
       {
         key: 'submissionStatus',
         title: '状态',
-        width: '300',
+        width: '100',
       },
       {
         key: 'actions',
@@ -157,7 +160,7 @@ const updateColumns=()=>{
             ProblemStudentAction2,
             {
               onClickAddTime: () =>
-                addTime(row)
+               onAddTime(row)
             }
           );
         }
@@ -216,7 +219,7 @@ const updateColumns=()=>{
 }
 // 根据 selectedStatus 过滤数据
 const studentInfoValue = ref({
-  studentId:'',
+  id:0,
   studentNo:'',
   chineseName:'',
   readTime:[],
@@ -274,10 +277,11 @@ const onEditClass = async (classId)=>{
   const id=1
   await router.push({name: 'StudentEdits', params: {clId: id}, query: {id: clId}})
 }
-const addTime=async ()=>{
-  // const {id} = classId
-  const id=1
-  await router.push({name: 'AdminProblemAddTime', params: {clId: id}, query: {id: clId}})
+const onAddTime=async (studentId)=>{
+  const {id} = studentId
+  await router.push({name:
+      'AdminProblemAddTime', query: {classId:
+      classId,problemId:problemId,studentId:id}})
 }
 const onReview=async ()=>{
   // const {id} = classId
@@ -318,6 +322,63 @@ const onUpdatePageSize = (pageSize) => {
   paginationReactive.page = 1;
   queryByPage(1)
 }
+const tableRef = ref(null);
+
+const exportScores = () => {
+  // 1. 获取表格数据
+  const data =  filteredData.value;
+
+  // 2. 定义表头
+  const headers = columns.value.map(column => column.title);
+
+  // 3. 转换为二维数组
+  const worksheetData = [headers];
+  data.forEach(row => {
+    const rowData = columns.value.map(column => row[column.key]);
+    worksheetData.push(rowData);
+  });
+
+  // 4. 生成 Excel 文件
+  const worksheet = XLSX.utils.aoa_to_sheet(worksheetData);
+  const workbook = XLSX.utils.book_new();
+  XLSX.utils.book_append_sheet(workbook, worksheet, 'Sheet1');
+
+  // 5. 导出文件
+  const excelBuffer = XLSX.write(workbook, {
+    bookType: 'xlsx',
+    type: 'array'
+  });
+  const blob = new Blob([excelBuffer], { type: 'application/octet-stream' });
+  saveAs(blob, '导出成绩.xlsx');
+};
+// 导出 Excel 函数
+const exportWeijiaoTable = () => {
+  // 1. 获取表格数据
+  const data =  filteredData.value;
+
+  // 2. 定义表头
+  const headers = columns.value.map(column => column.title);
+
+  // 3. 转换为二维数组
+  const worksheetData = [headers];
+  data.forEach(row => {
+    const rowData = columns.value.map(column => row[column.key]);
+    worksheetData.push(rowData);
+  });
+
+  // 4. 生成 Excel 文件
+  const worksheet = XLSX.utils.aoa_to_sheet(worksheetData);
+  const workbook = XLSX.utils.book_new();
+  XLSX.utils.book_append_sheet(workbook, worksheet, 'Sheet1');
+
+  // 5. 导出文件
+  const excelBuffer = XLSX.write(workbook, {
+    bookType: 'xlsx',
+    type: 'array'
+  });
+  const blob = new Blob([excelBuffer], { type: 'application/octet-stream' });
+  saveAs(blob, '导出未交名单.xlsx');
+};
 const rowKey = (rowData) => {
   return rowData.id
 }
diff --git a/AES/src/main/java/com/example/aes/problem/controller/ProblemController.java b/AES/src/main/java/com/example/aes/problem/controller/ProblemController.java
index dd55b24..be30da7 100644
--- a/AES/src/main/java/com/example/aes/problem/controller/ProblemController.java
+++ b/AES/src/main/java/com/example/aes/problem/controller/ProblemController.java
@@ -161,6 +161,17 @@ public class ProblemController {
                 problemServiceI.findProblemByCourseIdAndClassId(pmProblem);
         return RespBean.ok("查询作业列表成功",dataGrid);
 
+    }
+    @PostMapping(
+            "/addTime")
+    public RespBean addTime(@RequestBody PMPostProblem pmPostProblem){
+        int num =
+                problemServiceI.editSubmitReport(pmPostProblem.getEndTime(),pmPostProblem.getProblemId(),pmPostProblem.getStudentId());
+        if(num == 1)
+            return RespBean.ok("加时成功");
+        else
+            return RespBean.error("加时失败");
+
     }
     @PostMapping("/findProblemById")
     public RespBean findProblemById(@RequestBody PMProblem pmProblem){
@@ -205,9 +216,9 @@ public class ProblemController {
         int num =
                 problemServiceI.editPostProblem(pmPostProblem.getClassId(),pmPostProblem.getProblemId(),pmPostProblem.getStartTime(),pmPostProblem.getEndTime(),pmPostProblem.getAllow());
         if(num == 1)
-            return RespBean.ok("修改课程名称成功");
+            return RespBean.ok("修改作业设置成功");
         else
-            return RespBean.error("修改课程名称失败");
+            return RespBean.error("修改作业设置失败");
     }
     //获取作业列表
     @GetMapping("/getExamList")
diff --git a/AES/src/main/java/com/example/aes/problem/dao/SubmitReportDaoI.java b/AES/src/main/java/com/example/aes/problem/dao/SubmitReportDaoI.java
index 27bf5fc..1e79d28 100644
--- a/AES/src/main/java/com/example/aes/problem/dao/SubmitReportDaoI.java
+++ b/AES/src/main/java/com/example/aes/problem/dao/SubmitReportDaoI.java
@@ -4,10 +4,12 @@ import com.example.aes.problem.model.PMStudentSubmit;
 import com.example.aes.problem.model.SubmitReport;
 import com.example.aes.user.dao.BaseDaoI;
 
+import java.time.LocalDateTime;
 import java.util.List;
 
 public interface SubmitReportDaoI extends BaseDaoI<SubmitReport> {
     public List<Object[]> findWeijiaoList(PMStudentSubmit pmStudentSubmit);
     public List<Object[]> findYijiaoList(PMStudentSubmit pmStudentSubmit);
+    public int updateAddTime(LocalDateTime addTime,int problemId,int studentId);
 
 }
diff --git a/AES/src/main/java/com/example/aes/problem/dao/impl/ProblemDaoImpl.java b/AES/src/main/java/com/example/aes/problem/dao/impl/ProblemDaoImpl.java
index aad0e9a..b938241 100644
--- a/AES/src/main/java/com/example/aes/problem/dao/impl/ProblemDaoImpl.java
+++ b/AES/src/main/java/com/example/aes/problem/dao/impl/ProblemDaoImpl.java
@@ -336,8 +336,12 @@ public class ProblemDaoImpl extends BaseDaoImpl<Problem> implements ProblemDaoI{
 //                    "COUNT(CASE WHEN sr.submissionTime IS NULL THEN 1 END) AS weijiao " +
                     "FROM Problem p " +
                     "INNER JOIN PostProblem pp ON p.id = pp.problemId " +
-                    "LEFT JOIN SubmitReport sr ON " +
-                    "p.id = sr.problemId " +
+                    "left join Classstudents cs" +
+                    " " +
+                    "on pp.classId=cs.classId " +
+                    "LEFT JOIN SubmitReport sr " +
+                    "ON cs" +
+                    ".userId = sr.studentId " +
                     "WHERE pp.classId =:classId "+
                     "AND p.courseId =:courseId "+
                     "AND NOW() < pp.startTime " +
@@ -351,37 +355,47 @@ public class ProblemDaoImpl extends BaseDaoImpl<Problem> implements ProblemDaoI{
 //                    "COUNT(CASE WHEN sr.submissionTime IS NULL THEN 1 END) AS weijiao " +
                     "FROM Problem p " +
                     "INNER JOIN PostProblem pp ON p.id = pp.problemId " +
-                    "LEFT JOIN SubmitReport sr ON " +
-                    "p.id = sr.problemId " +
+                    "left join Classstudents cs" +
+                    " " +
+                    "on pp.classId=cs.classId " +
+                    "LEFT JOIN SubmitReport sr " +
+                    "ON cs" +
+                    ".userId = sr.studentId " +
                     "WHERE pp.classId =:classId "+
                     "AND p.courseId =:courseId "+
-                    "AND NOW() >= pp.startTime " +
-                    "and NOW()<=pp.endTime " +
+                    " and NOW() BETWEEN pp" +
+                    ".startTime AND pp.endTime " +
                     "GROUP BY p.id, p.title, pp" +
                     ".startTime, pp.endTime";
         }else if(selectedStatus.equals("completed")){
+           hql = "SELECT p.id as id, p.title as title, pp.startTime as startTime, pp.endTime as endTime, " +
+                   "COUNT(CASE WHEN sr.score IS NULL AND sr.autoscore IS NOT NULL THEN 1 END) AS daipi, " +
+                   "COUNT(CASE WHEN sr.submissionTime IS NOT NULL THEN 1 END) AS yijiao " +
+//                    "COUNT(CASE WHEN sr.submissionTime IS NULL THEN 1 END) AS weijiao " +
+                   "FROM Problem p " +
+                   "INNER JOIN PostProblem pp ON p.id = pp.problemId " +
+                   "left join Classstudents cs" +
+                   " " +
+                   "on pp.classId=cs.classId " +
+                   "LEFT JOIN SubmitReport sr " +
+                   "ON cs" +
+                   ".userId = sr.studentId " +
+                   "WHERE pp.classId =:classId "+
+                   "AND p.courseId = :courseId " +
+                   "AND NOW() > pp.endTime " +  // 确保 endTime 是 pp 的字段
+                   "GROUP BY p.id, p.title, pp.startTime, pp.endTime";
+        }else{
             hql = "SELECT p.id as id, p.title as title, pp.startTime as startTime, pp.endTime as endTime, " +
                     "COUNT(CASE WHEN sr.score IS NULL AND sr.autoscore IS NOT NULL THEN 1 END) AS daipi, " +
                     "COUNT(CASE WHEN sr.submissionTime IS NOT NULL THEN 1 END) AS yijiao " +
-//                    "COUNT(CASE WHEN sr.submissionTime IS NULL THEN 1 END) AS weijiao " +
                     "FROM Problem p " +
                     "INNER JOIN PostProblem pp ON p.id = pp.problemId " +
-                    "LEFT JOIN SubmitReport sr ON " +
-                    "p.id = sr.problemId " +
-                    "WHERE pp.classId =:classId "+
-                    "AND p.courseId =:courseId "+
-                    "AND NOW() > endTime " +
-                    "GROUP BY p.id, p.title, pp" +
-                    ".startTime, pp.endTime";
-        }else{
-            hql = "SELECT p.id as id, p.title as title, pp.startTime as startTime, pp.endTime as endTime," +
-                    "COUNT(CASE WHEN sr.score IS NULL AND sr.autoscore IS NOT NULL THEN 1 END) AS daipi," +
-                    "COUNT(CASE WHEN sr" +
-                    ".submissionTime IS NOT NULL THEN 1 END) AS yijiao " +
-                    "FROM Problem p " +
-                    "INNER JOIN PostProblem pp ON p.id = pp.problemId " +
-                    "LEFT JOIN SubmitReport sr ON " +
-                    "p.id = sr.problemId " +
+                    "left join Classstudents cs" +
+                    " " +
+                    "on pp.classId=cs.classId " +
+                    "LEFT JOIN SubmitReport sr " +
+                    "ON cs" +
+                    ".userId = sr.studentId " +
                     "WHERE pp.classId =:classId "+
                     "AND p.courseId =:courseId "+
                     "GROUP BY p.id, p.title, pp" +
diff --git a/AES/src/main/java/com/example/aes/problem/dao/impl/SubmitReportDaoImpl.java b/AES/src/main/java/com/example/aes/problem/dao/impl/SubmitReportDaoImpl.java
index bf96e47..2dc0502 100644
--- a/AES/src/main/java/com/example/aes/problem/dao/impl/SubmitReportDaoImpl.java
+++ b/AES/src/main/java/com/example/aes/problem/dao/impl/SubmitReportDaoImpl.java
@@ -7,6 +7,7 @@ import com.example.aes.user.dao.impl.BaseDaoImpl;
 import org.hibernate.Query;
 import org.springframework.stereotype.Repository;
 
+import java.time.LocalDateTime;
 import java.util.List;
 
 @Repository("SubmitReportDao")
@@ -22,7 +23,7 @@ String chineseName=
         String hql="SELECT u.chineseName," +
                 "u.studentNo, sr" +
                 ".readTime," +
-                "sr.submissionStatus " +
+                "sr.submissionStatus,u.id " +
                 "FROM Classstudents cs left " +
                 "join Users u on cs" +
                 ".userId=u.id "+
@@ -36,6 +37,7 @@ String chineseName=
                 "and " +
                 "pp.problemId " +
                 "=:problemId" +
+                " and sr.problemId=:problemId" +
                 " and sr" +
                 ".submissionTime is null and " +
                 "u.studentNo like :studentNo " +
@@ -57,6 +59,20 @@ String chineseName=
         return query.getResultList();
     }
     @Override
+    public int updateAddTime(LocalDateTime addTime,int problemId,int studentId){
+        String hql= "UPDATE SubmitReport sr SET" +
+                " sr.addTime= :addTime "
+                + "WHERE sr.problemId = " +
+                ":problemId" +
+                " AND sr.studentId= :studentId";
+        Query q = this.getCurrentSession().createQuery(hql);
+        q.setParameter("addTime",addTime);
+        q.setParameter("problemId",problemId);
+        q.setParameter("studentId",studentId);
+        int num = q.executeUpdate();
+        return num;
+    }
+    @Override
     public List<Object[]> findYijiaoList(PMStudentSubmit pmStudentSubmit){
         int classId= pmStudentSubmit.getClassId();
         int problemId= pmStudentSubmit.getProblemId();
@@ -70,7 +86,7 @@ String chineseName=
                 "sr.submissionStatus," +
                 " COALESCE(sr.score," +
                 " sr.autoscore) " +
-                "AS finalScore " +
+                "AS finalScore ,u.id " +
                 "FROM Classstudents cs left " +
                 "join Users u on cs" +
                 ".userId=u.id "+
@@ -84,6 +100,7 @@ String chineseName=
                 "and " +
                 "pp.problemId " +
                 "=:problemId" +
+                " and sr.problemId=:problemId" +
                 " and sr" +
                 ".submissionTime is not null " +
                 "and " +
diff --git a/AES/src/main/java/com/example/aes/problem/model/PMPostProblem.java b/AES/src/main/java/com/example/aes/problem/model/PMPostProblem.java
index a29c657..e608761 100644
--- a/AES/src/main/java/com/example/aes/problem/model/PMPostProblem.java
+++ b/AES/src/main/java/com/example/aes/problem/model/PMPostProblem.java
@@ -19,4 +19,5 @@ public class PMPostProblem{
     private LocalDateTime endTime;
     private List<Integer> classList;
     private Boolean allow;
+    private int studentId;
 }
diff --git a/AES/src/main/java/com/example/aes/problem/model/PMStudentSubmit.java b/AES/src/main/java/com/example/aes/problem/model/PMStudentSubmit.java
index bb060d5..911f852 100644
--- a/AES/src/main/java/com/example/aes/problem/model/PMStudentSubmit.java
+++ b/AES/src/main/java/com/example/aes/problem/model/PMStudentSubmit.java
@@ -7,6 +7,7 @@ import java.time.LocalDateTime;
 
 @Data
 public class PMStudentSubmit {
+    private int id;
     private String chineseName;
     private String studentNo;
     @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd HH:mm:ss")
diff --git a/AES/src/main/java/com/example/aes/problem/service/Impl/ProblemServiceImpl.java b/AES/src/main/java/com/example/aes/problem/service/Impl/ProblemServiceImpl.java
index 110a4b1..c341f2e 100644
--- a/AES/src/main/java/com/example/aes/problem/service/Impl/ProblemServiceImpl.java
+++ b/AES/src/main/java/com/example/aes/problem/service/Impl/ProblemServiceImpl.java
@@ -316,18 +316,22 @@ public class ProblemServiceImpl implements ProblemServiceI {
         }
     }
     @Override
+    public int editSubmitReport(LocalDateTime addTime,int problemId,int studentId){
+        return studentSubmitDao.updateAddTime(addTime,problemId,studentId);
+    }
+    @Override
     public DataGrid findProblemByCourseIdAndClassId(PMProblem pmProblem){
         DataGrid dg = new DataGrid();
-        int totalLines;
+
         List<Object[]> theProblemList;
-        totalLines= (int) postProblemDao.getPostProblemNum(pmProblem.getCourseId(),pmProblem.getClassId());
+//        totalLines= (int) postProblemDao.getPostProblemNum(pmProblem.getCourseId(),pmProblem.getClassId());
         int page= pmProblem.getPageNum();
 
        int studentNum=
                classesDao.findClassById(pmProblem.getClassId()).get(0).getStudentNum();
         theProblemList=
                 problemDao.getProblemsByPage(pmProblem.getCourseId(),pmProblem.getClassId(),pmProblem.getSelectedStatus(),pmProblem.getPageNum(), pmProblem.getPageSize());
-//       totalLines=theProblemList.size();
+        int totalLines=theProblemList.size();
         if ((page-1)*pmProblem.getPageSize()>=totalLines){
             pmProblem.setPageNum(1);
         }
@@ -520,7 +524,8 @@ public class ProblemServiceImpl implements ProblemServiceI {
                 pmStudentSubmit.setStudentNo((String) p[1]);
                 pmStudentSubmit.setReadTime((LocalDateTime) p[2]);
                 pmStudentSubmit.setSubmissionStatus((String) p[3]);
-                pmStudentSubmitList.add(pmStudentSubmit);
+                pmStudentSubmit.setId((int) p[4]);
+              pmStudentSubmitList.add(pmStudentSubmit);
 
             }
         }
@@ -536,6 +541,7 @@ public class ProblemServiceImpl implements ProblemServiceI {
                 pmStudentSubmit.setSubmitTime((LocalDateTime) p[2]);
                 pmStudentSubmit.setSubmissionStatus((String) p[3]);
                 pmStudentSubmit.setFinalScore((float) p[4]);
+                pmStudentSubmit.setId((int) p[5]);
                 pmStudentSubmitList.add(pmStudentSubmit);
 
             }
diff --git a/AES/src/main/java/com/example/aes/problem/service/ProblemServiceI.java b/AES/src/main/java/com/example/aes/problem/service/ProblemServiceI.java
index 4e4b343..461feb6 100644
--- a/AES/src/main/java/com/example/aes/problem/service/ProblemServiceI.java
+++ b/AES/src/main/java/com/example/aes/problem/service/ProblemServiceI.java
@@ -49,4 +49,5 @@ public interface ProblemServiceI {
 							   LocalDateTime startTime,LocalDateTime endTime,boolean allow);
 	public DataGrid findWeijiaoList(PMStudentSubmit pmStudentSubmit);
 	public DataGrid findYijiaoList(PMStudentSubmit pmStudentSubmit);
+	public int editSubmitReport(LocalDateTime addTime,int problemId,int studentId);
 }