diff --git a/src/components/markdown-preview/markdown-preview.vue b/src/components/markdown-preview/markdown-preview.vue
index 4520cdc6..df00d1ad 100644
--- a/src/components/markdown-preview/markdown-preview.vue
+++ b/src/components/markdown-preview/markdown-preview.vue
@@ -5,11 +5,18 @@
 </template>
 
 <script>
+	// import {Marked} from 'marked';
+	import MarkdownIt from 'markdown-it';
 	export default {
 		name:"markdown-preview",
 		props: {
 			mdString: {
-				default:`在客服交流中使用标准术语是提高专业形象和服务质量的重要手段。以下是一些常见的客服标准用语及其适用场景：
+				default:`## 我是二级标题
+### 我是三级标题
+| 我是表头 | 表头 2 |
+| :----------- | :----------- |
+|1|2|
+				在客服交流中使用标准术语是提高专业形象和服务质量的重要手段。以下是一些常见的客服标准用语及其适用场景：
 
 1. **问候与介绍：**
    - “您好，欢迎来到[公司名称]，我是您的客服代表[姓名]，很高兴为您服务。”
@@ -41,20 +48,34 @@
 		},
 		data() {
 			return {
-				contentHtml:''
+				contentHtml:'',
+				mdObj:null
 			};
 		},
 		watch:{
 			mdString: {
 				handler(val){
-					
+					this.contentHtml = this.parseContent(val)
 				},
 				deep: true,
 				immediate: true
 			}
 		},
 		methods:{
-			
+			parseContent(text){
+				if(this.mdObj){
+					return this.mdObj.render(text)
+				}else{
+					setTimeout(()=>{
+						return this.parseContent(text)
+					},500)
+				}
+			}
+		},
+		mounted(){
+			this.mdObj = new MarkdownIt()
+			this.contentHtml = this.parseContent(this.mdString)
+				console.log(this.contentHtml)
 		}
 	}
 </script>
diff --git a/src/pages/course/components/talkingItem.vue b/src/pages/course/components/talkingItem.vue
index 2539c2ca..5d786f41 100644
--- a/src/pages/course/components/talkingItem.vue
+++ b/src/pages/course/components/talkingItem.vue
@@ -335,7 +335,7 @@ const audioCacheObj = computed(() => storageStore.audioObj)
 		}
 		// readType 阅读内容类型pgrh段落/qns问题
 		emit('changePlay', unref(dataInfo)?.id)
-		if(talkVoiceObj.value.src === itemVoice.value) {
+		if(talkVoiceObj.value.src && talkVoiceObj.value.src === itemVoice.value) {
 			talkVoiceObj.value.play() 
 			return
 		}
diff --git a/src/pages/course/index.vue b/src/pages/course/index.vue
index 6cc5f62b..cf4fa96a 100644
--- a/src/pages/course/index.vue
+++ b/src/pages/course/index.vue
@@ -167,16 +167,11 @@ import { onMounted, ref, computed } from 'vue'
 	}
 	// 点击生产线分类
 	const changePrdLine = (item)=>{
-		activePrdlineType.value = item.value
+		activePrdlineType.value = item.value === activePrdlineType.value ? '' : item.value
 	}
 	// 点击课程分类
 	const changeCourseType =  (item)=>{
-		activeCourseType.value = item.value
-		
-		setTimeout(()=>{
-			console.log(courseListTreeShow.value)
-		})
-		
+		activeCourseType.value = item.value === activeCourseType.value ? '' : item.value
 	}
 	const showTypeName = computed(()=>{
 		return (activeTab.value === '全部' && activeCourseType.value === '') || (activeTab.value === '生产线' && activePrdlineType.value === '')
@@ -241,7 +236,7 @@ import { onMounted, ref, computed } from 'vue'
 	const changeTab = (item) => {
 		if(!item) return
 		activeTab.value = item.name
-		activeTag.value = ''
+		// activeTag.value = ''
 		activeCourseType.value = ''
 		activePrdlineType.value = ''
 		switch (item.name){
diff --git a/src/pages/index/dialog.vue b/src/pages/index/dialog.vue
index df93e492..badbb0ba 100644
--- a/src/pages/index/dialog.vue
+++ b/src/pages/index/dialog.vue
@@ -1,8 +1,11 @@
 <template>
-	<view>AI问答</view>
+	<view>
+		<MarkdownPreview/>
+	</view>
 </template>
 
-<script>
+<script setup>
+	import MarkdownPreview from '@/components/markdown-preview/markdown-preview.vue';
 </script>
 
 <style>
diff --git a/src/pages/index/index.vue b/src/pages/index/index.vue
index 7963d8d5..efecd631 100644
--- a/src/pages/index/index.vue
+++ b/src/pages/index/index.vue
@@ -84,7 +84,7 @@
 						<image class="icon" src="@/static/images/index/navigation_course.png"></image>
 						<view class="title">课程中心</view>
 					</view>
-					<view class="item">
+					<view class="item" @click="common.navigateTo('/pages/index/dialog')">
 						<image class="icon" src="@/static/images/index/navigation_question_answering.png"></image>
 						<view class="title">AI问答</view>
 					</view>