diff --git a/src/renderer/src/hooks/useClassTask.js b/src/renderer/src/hooks/useClassTask.js
index 7e58c45..72fe882 100644
--- a/src/renderer/src/hooks/useClassTask.js
+++ b/src/renderer/src/hooks/useClassTask.js
@@ -117,6 +117,8 @@ export const editListItem = (row, courseObj) => {
           classtaskObj.fileHomeworkList = JSON.parse(row.workcodes);
           //
           // console.log('科学实验', classtaskObj);
+          // 更新默认的科学实验（ 学段 学科 以及实验科目）
+          console.log('科学实验', classtaskObj);
           return resolve(classtaskObj);
         }
       }
diff --git a/src/renderer/src/store/modules/classTask.js b/src/renderer/src/store/modules/classTask.js
index 05a9491..e93be20 100644
--- a/src/renderer/src/store/modules/classTask.js
+++ b/src/renderer/src/store/modules/classTask.js
@@ -5,6 +5,11 @@ import { JYApiListCT, JYApiListOriginYear, JYApiListSO} from "@/utils/examQuesti
 
 const useClassTaskStore = defineStore('classTask',{
   state: () => ({
+    experimentObj:{
+      edustage: '小学', // 教育阶段
+      edusubject: '', // 学科
+      experimentList: [], // 实验科目列表
+    },
     isOpenQuestUploadView: false, // 是否打开习题上传的页面
     classListIds: [],
     entpCourseWorkTypeList: [
diff --git a/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/experimentList.vue b/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/experimentList.vue
index 8c0505f..9755859 100644
--- a/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/experimentList.vue
+++ b/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/experimentList.vue
@@ -8,7 +8,7 @@
       @change="onSelectOption"
     >
       <el-option
-        v-for="item in props.list"
+        v-for="item in classTaskStore.experimentList"
         :key="item.value"
         :label="item.label"
         :value="item.label"
@@ -21,8 +21,10 @@
 import useUserStore from '@/store/modules/user'
 import {ArrowDown} from '@element-plus/icons-vue'
 import { onMounted,ref } from 'vue';
+import useClassTaskStore from '@/store/modules/classTask'
 const userStore = useUserStore().user
 const subjectList = ref([])
+const classTaskStore = useClassTaskStore().experimentObj
 
 // 定义要发送的emit事件
 let emit = defineEmits(['selectItem'])
@@ -42,7 +44,7 @@ onMounted(() => {
 
 const onSelectOption = (option) => {
   console.log(option,'选择的实验课-------')
-  emit('selectItem', props.list.filter(item => item.label === option)[0])
+  emit('selectItem', classTaskStore.experimentList.filter(item => item.label === option)[0])
 }
 
 </script>
diff --git a/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/selectClass.vue b/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/selectClass.vue
index 87ce096..e539610 100644
--- a/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/selectClass.vue
+++ b/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/components/selectClass.vue
@@ -3,7 +3,7 @@
         <div style="margin-left: 15px">
             <el-dropdown @command="handleUserEduStage">
             <span class="el-dropdown-link">
-                <el-button class="custom-button" type="default" round >{{ userStore.edustage }}
+                <el-button class="custom-button" type="default" round >{{ useClassTaskStore().experimentObj.edustage }}
                     <el-icon><ArrowDown /></el-icon>
                 </el-button>
             </span>
@@ -20,14 +20,14 @@
         <div style="margin-left: 15px">
             <el-dropdown @command="handleUserEduSubject">
             <span class="el-dropdown-link">
-                <el-button class="custom-button" type="default" round>{{ userStore.edusubject }}
+                <el-button class="custom-button" type="default" round>{{ useClassTaskStore().experimentObj.edusubject }}
                     <el-icon><ArrowDown /></el-icon>
                 </el-button>
             </span>
             <template #dropdown>
                 <el-dropdown-menu>
                 <template v-for="(item, index) in subjectList">
-                    <el-dropdown-item v-if="item.edustage == userStore.edustage" :command="item.itemtitle">{{
+                    <el-dropdown-item v-if="item.edustage == useClassTaskStore().experimentObj.edustage && isExpList(item.itemtitle)" :command="item.itemtitle">{{
                     item.itemtitle }}</el-dropdown-item>
                 </template>
                 </el-dropdown-menu>
@@ -43,11 +43,15 @@ import {ArrowDown} from '@element-plus/icons-vue'
 import { onMounted,ref } from 'vue';
 import { listEvaluation } from '@/api/subject/index'
 import jsonData from "@/utils/phetData.json";
+import useClassTaskStore from '@/store/modules/classTask'
 const userStore = useUserStore().user
 
 // 定义要发送的emit事件
-let emit = defineEmits(['experlist'])
-
+// let emit = defineEmits(['experlist'])
+// const expObj = ref({
+//     edustage: useClassTaskStore().experimentObj.edustage,
+//     edusubject: useClassTaskStore().experimentObj.edusubject,
+// })
 const subjectList = ref([])
 const chooseGrade= ref({})
 const expList = ref([]) // 当前年级的所有课程
@@ -62,63 +66,82 @@ const getSubject = () => {
     const arr = userStore.subject.split(',')
     subjectList.value = res.rows.filter(item => arr.includes(String(item.id))).map(items => items)
     console.log(subjectList,'subjectList');
-    
   })
+  // 默认读取一个学科
+  handleUserEduStage(useClassTaskStore().experimentObj.edustage)
+}
+// 展示有 实验科目的学科
+const isExpList = (edusubject) => {
+    let list = [];
+    switch (edusubject){
+        case '数学':
+            list = expList.value.filter(item => item.subject === 'math')
+            break;
+        case '物理':
+            list = expList.value.filter(item => item.subject === 'physics')
+            break;
+        case '化学':
+            checkList.value = expList.value.filter(item => item.subject === 'chemistry')
+            break;
+        case '生物':
+            list = expList.value.filter(item => item.subject === 'biology')
+            break;
+        case '科学':
+            list = expList.value.filter(item => item.subject === 'sciences')
+            break;
+    } 
+    return list.length > 0
 }
 // 选择学段
 const handleUserEduStage = (item) => {
-    userStore.edustage = item
-    // sessionStore.set('edustageSelf',item)
-    // if(item === '幼儿园'){
-    //     // 默认语文
-    //     userStore.edusubject = '语文'
-    //     // sessionStore.set('edusubjectSelf','语文')
-    // }
-    // else 
-    if(item === '高中' && userStore.edusubject === "道德与法治"){
-        // 默认语文
-        userStore.edusubject = '政治'
-        // sessionStore.set('edusubjectSelf','政治')
-    }
-    else if(item != '高中' && userStore.edusubject === "政治"){
-        // 默认语文
-        userStore.edusubject = '道德与法治'
-        // sessionStore.set('edusubjectSelf','道德与法治')
-    }
-
-    // 在此处处理筛选年级实验的逻辑
+    // userStore.edustage = item
+    useClassTaskStore().experimentObj.edustage = item
     //清空操作
     expList.value = []
     if(item === '小学'){
         chooseGrade.value = jsonData.data.primary
+        expList.value = chooseGrade.value
+        const newSubjectList = subjectList.value.filter(item => item.edustage === '小学');
+        for(let i in newSubjectList){
+            const name = newSubjectList[i].itemtitle
+            if(isExpList(name)){
+                useClassTaskStore().experimentObj.edusubject = name;
+                // 更改学科默认与学科下的实验科目
+                handleUserEduSubject(name)
+            }
+        }
     }else if(item === '初中'){
         chooseGrade.value = jsonData.data.junior
+        expList.value = chooseGrade.value
+        const newSubjectList = subjectList.value.filter(item => item.edustage === '初中');
+        for(let i in newSubjectList){
+            const name = newSubjectList[i].itemtitle
+            if(isExpList(name)){
+                useClassTaskStore().experimentObj.edusubject = name;
+                // 更改学科默认与学科下的实验科目
+                handleUserEduSubject(name)
+            }
+        }
     }else if(item === '高中'){
         chooseGrade.value = jsonData.data.senior
+        expList.value = chooseGrade.value
+        const newSubjectList = subjectList.value.filter(item => item.edustage === '高中');
+        for(let i in newSubjectList){
+            const name = newSubjectList[i].itemtitle
+            if(isExpList(name)){
+                useClassTaskStore().experimentObj.edusubject = name;
+                // 更改学科默认与学科下的实验科目
+                handleUserEduSubject(name)
+            }
+        }
     }
-    for(let i in chooseGrade.value){
-        expList.value.push(chooseGrade.value[i])
-    }
-    console.log(expList.value,'expList.value')
-    // const queryGrages = this.subjectList.filter(itemSubject => itemSubject.edustage === item)
-    // selectSubject(item, subjectList.value)
-
-
 }
 // 选择学科
 const handleUserEduSubject = (item) => {
-    userStore.edusubject = item;
-    // sessionStore.set('edusubjectSelf',item)
+    // userStore.edusubject = item;
+    useClassTaskStore().experimentObj.edusubject = item;
     console.log(item,'选择的学科-------')
-    //更改学科
-    // this.chooseSubject = item
     checkList.value = []
-    // const queryGrages = expList.value.filter(itemSubject => itemSubject.edustage === item) || []
-    //这里是年级切换的时候，判断一下下一个年级是否有这一门课程，如果有继续执行，没有就清空
-    // const subjectNameList = queryGrages.map(itemSubName => {
-    //     return itemSubName.edusubject
-    // })
-    // if(!subjectNameList.includes(item)) return
     switch (item){
         case '数学':
             checkList.value = expList.value.filter(item => item.subject === 'math')
@@ -137,7 +160,8 @@ const handleUserEduSubject = (item) => {
             break;
     }
     console.log(checkList.value,'checkList')
-    emit('experlist',checkList.value)
+    useClassTaskStore().experimentObj.experimentList = checkList.value;
+    // emit('experlist',checkList.value)
 }
 
 
diff --git a/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/index.vue b/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/index.vue
index d8dcf57..6728919 100644
--- a/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/index.vue
+++ b/src/renderer/src/views/classTask/newClassTaskAssign/experimentQuestion/index.vue
@@ -2,14 +2,16 @@
   <div class="experiment-page">
     <div class="activeExp-header"> 
       <div class="infomation" v-if="isStadium() !== true" >
-        <selectClass v-if="!isSubject" @experlist="getExperimentList" />
+        <!-- <selectClass v-if="!isSubject" @experlist="getExperimentList" /> -->
+        <selectClass v-if="!isSubject" />
       </div>
       <div> 
-        <selectExperiment  :list="experimentList" @selectItem="getExperimentListItem" />
+        <selectExperiment @selectItem="getExperimentListItem" />
       </div>
     </div>
     <div ref="mainDiv" class="activeExp-main" style="overflow: auto">
-      <iframe :src="activeExp.fileurl" ref="myuunity" width="100%" height="100%" scrolling="no" frameborder="0"></iframe>
+      <div v-if="!activeExp.fileurl"><el-empty description="暂无学科实验"></el-empty></div>
+      <iframe v-else :src="activeExp.fileurl" ref="myuunity" width="100%" height="100%" scrolling="no" frameborder="0"></iframe>
       <!-- <phet/>-->
     </div>
   </div>
@@ -18,21 +20,10 @@
 import { Search } from '@element-plus/icons-vue'
 //import html2canvas from 'html2canvas';
 import { onMounted, ref,watch, reactive, getCurrentInstance,nextTick } from 'vue'
-
-
-import { getBindlist } from '@/api/education/knowledgePoint'
-import examDetailsDrawer from '@/components/exam-question/examDetailsDrawer.vue'
-import { processList } from '@/hooks/useProcessList'
-import { useGetHomework } from '@/hooks/useGetHomework'
-import { sessionStore } from '@/utils/store'
-import {throttle,debounce } from '@/utils/comm' 
 import useUserStore from '@/store/modules/user'
 import useClassTaskStore from '@/store/modules/classTask'
-
-//选择学校和班级
-import selectClass from './components/selectClass.vue'
-// 选择的 学科实验
-import selectExperiment from './components/experimentList.vue'
+import selectClass from './components/selectClass.vue' //选择学校和班级
+import selectExperiment from './components/experimentList.vue' // 选择的 学科实验
 
 
 // 定义要发送的emit事件
@@ -51,7 +42,7 @@ const props = defineProps({
   }
 })
 // 学科的 实验列
-const experimentList = ref([]);
+// const experimentList = ref([]);
 const activeExp = ref({});
 
 const isStadium = () => {
@@ -77,20 +68,19 @@ onMounted(() => {
 // }
 
 // 选择的学科 获取实验课程信息
-const getExperimentList = (val) => {
-  console.log(val,'选择的学科，获取实验课程list信息')
-  experimentList.value = val;
-}
+// const getExperimentList = (val) => {
+//   console.log(val,'选择的学科，获取实验课程list信息')
+//   // experimentList.value = val;
+// }
 // 选择的实验课
 const getExperimentListItem = (val) => {
   console.log(val,'选择的实验课程信息')
   activeExp.value = val;
   emit('clickExpObj', val)
 }
-
-console.log(props.expObj,'科学props.expObj实验科目')
+// 监听实验课程信息
 watch(() => props.expObj.fileurl, (newVal, oldVal) => {
-  console.log(newVal,'科学实验科目')
+  console.log(props.expObj,'科学实验科目')
   activeExp.value = props.expObj;
 })