diff --git a/public/react/src/AppConfig.js b/public/react/src/AppConfig.js
index df3ad315b..c630abf7e 100644
--- a/public/react/src/AppConfig.js
+++ b/public/react/src/AppConfig.js
@@ -46,7 +46,7 @@ debugType = "admin";
 // 老师
 // debugType="teacher";
 // 学生
-debugType="student";
+//debugType="student";
 
 
 
diff --git a/public/react/src/common/TextUtil.js b/public/react/src/common/TextUtil.js
index 8360881e9..ae04e3a1c 100644
--- a/public/react/src/common/TextUtil.js
+++ b/public/react/src/common/TextUtil.js
@@ -6,11 +6,8 @@ export function isImageExtension(fileName) {
 }
 
 export function markdownToHTML(oldContent, selector) {
-    console.log(oldContent)
-    console.log(selector)
-    if(oldContent){
+    try {
         window.$('#md_div').html('')
-        // markdown to html
         if (selector && oldContent && oldContent.startsWith('<p')) {  // 普通html处理
             window.$('#' + selector).addClass('renderAsHtml')
             window.$('#' + selector).html(oldContent)
@@ -42,8 +39,9 @@ export function markdownToHTML(oldContent, selector) {
             }
             return content
         }
-    }
+    }catch (e) {
 
+    }
 }
 function _doDownload(options) {
     $.fileDownload(getUrl() + "/api" + options.url, {
diff --git a/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js b/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js
index 000859e39..26f30212c 100644
--- a/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js
+++ b/public/react/src/modules/courses/exercise/Exercisestatisticalresult.js
@@ -1,7 +1,6 @@
 import React, {Component} from "react";
-import {WordsBtn,markdownToHTML, MarkdownToHtml} from 'educoder';
-import { Form, Select, Input, Button,Checkbox,Upload,Icon,message,Modal, Table, Divider,InputNumber, Tag,DatePicker,Radio,Tooltip,Pagination} from "antd";
-import {Link,Switch,Route,Redirect} from 'react-router-dom';
+import {QuillForEditor, MarkdownToHtml} from 'educoder';
+import {Checkbox,Pagination} from "antd";
 import axios from 'axios';
 import Exercisetablesmubu from './Exercisetablesmubu';
 import Exercisestatisticalresulttabel from './Exercisestatisticalresulttabel';
@@ -287,6 +286,9 @@ class Exercisestatisticalresult extends Component {
 		  .Exermubu .editormd-html-preview, .Exermubu .editormd-preview-container {
 			  background: transparent;
 		  }
+		.ql-editor{
+		 padding:0px !important;
+		}
 			`}
 				</style>
 					{data&&data.commit_results.map((item,key)=>{
@@ -299,9 +301,14 @@ class Exercisestatisticalresult extends Component {
 										<div>
 											{/*Q{item.ques_position}：*/}
 											{/* <div className={"markdown-body"} dangerouslySetInnerHTML={{__html: markdownToHTML1(item.ques_title).replace(/▁/g,"▁▁▁")}}></div> */}
-											<MarkdownToHtml content={item.ques_title} selector={'ques_title_' + key}
+											{this.state&&this.state.data.is_md===false&&item.ques_type!=6?<QuillForEditor
+												style={{ display: 'inline-block', width:'100%' , margin: '1px',padding:'0px'}}
+												readOnly={true}
+												value={item.ques_title?JSON.parse(item.ques_title):""}
+												// showUploadImage={this.handleShowUploadImage}
+											/>:<MarkdownToHtml content={item.ques_title} selector={'ques_title_' + key}
 												className=""
-											></MarkdownToHtml>
+											></MarkdownToHtml>}
 											{/*<span className="markdown-body" dangerouslySetInnerHTML={createMarkup(item.ques_title)}></span>*/}
 										</div>
 										 </div>
@@ -319,8 +326,9 @@ class Exercisestatisticalresult extends Component {
 													<div className="fr shixunreporttitles">正确率<span style={{color:'#FF6800'}}> {ite.challenge_percent}%</span></div>
 												</div>
 												<Exercisetablesmubu
+													{...this.state}
 													tableNum={`${key}${k}`}
-													data={ite.challenge_details}
+													datass={ite.challenge_details}
 													type={item.ques_type}
 													effictive_counts={item.effictive_counts}
 													choicetype={choicetype}
@@ -329,8 +337,9 @@ class Exercisestatisticalresult extends Component {
 										)
 									}):
 							    <Exercisetablesmubu
+										{...this.state}
 										tableNum={key}
-								    data={item.ques_details}
+								    datass={item.ques_details}
 								    type={item.ques_type}
 								    effictive_counts={item.effictive_counts}
 										choicetype={choicetype}
diff --git a/public/react/src/modules/courses/exercise/Exercisestatisticalresulttabel.js b/public/react/src/modules/courses/exercise/Exercisestatisticalresulttabel.js
index 6ed6d2a8c..c52c7c2ac 100644
--- a/public/react/src/modules/courses/exercise/Exercisestatisticalresulttabel.js
+++ b/public/react/src/modules/courses/exercise/Exercisestatisticalresulttabel.js
@@ -1,8 +1,5 @@
 import React, {Component} from "react";
-import {WordsBtn} from 'educoder';
 import {Table} from "antd";
-import {Link,Switch,Route,Redirect} from 'react-router-dom';
-
 class OfficialAcademicTranscript extends Component {
 
 	constructor(props) {
diff --git a/public/react/src/modules/courses/exercise/Exercisetablesmubu.js b/public/react/src/modules/courses/exercise/Exercisetablesmubu.js
index 196625d46..5f078e3d2 100644
--- a/public/react/src/modules/courses/exercise/Exercisetablesmubu.js
+++ b/public/react/src/modules/courses/exercise/Exercisetablesmubu.js
@@ -1,11 +1,11 @@
 import React, {Component} from "react";
-import {WordsBtn, MarkdownToHtml} from 'educoder';
+import {MarkdownToHtml,QuillForEditor} from 'educoder';
 import {Table,Progress} from "antd";
-import {Link,Switch,Route,Redirect} from 'react-router-dom';
+
 
 const tagArray = [
-    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 
-    'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
+    'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
     'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
 ]
 
@@ -15,7 +15,6 @@ class Exercisetablesmubus extends Component {
 		super(props);
 		this.state = {
 			loadingstate:true,
-			datas:undefined
 		}
 	}
 
@@ -23,13 +22,26 @@ class Exercisetablesmubus extends Component {
 
 	}
 
+	setdata=(value)=>{
+		let newvalue;
+		try {
+			newvalue=JSON.parse(value);
+		}catch (e) {
+			newvalue={"ops":[{"insert":value}]};
+		}
+		if(value===undefined){
+			newvalue={"ops":[{"insert":""}]};
+		}
+		return newvalue
+	}
+
 	render() {
 
-		let {data,type,effictive_counts,choicetype, tableNum}=this.props;
-		let datas=[];
+		let {datass,type,effictive_counts,choicetype, tableNum}=this.props;
+		let list=[];
 
-		data&&data.forEach((item,key)=>{
-			datas.push({
+		datass&&datass.forEach((item,key)=>{
+			list.push({
 				commit_percent:{
 						num:item.choice_position,
 						value:type===4||type===5?choicetype[item.choice_text-1]:item.choice_text,
@@ -40,33 +52,38 @@ class Exercisetablesmubus extends Component {
 				max_score:item.choice_percent,
 			})
 		})
-		datas.push({
+		list.push({
 			commit_percent: {num:null,value:"有效填写量"},
 			min_score:{value:effictive_counts},
 		})
 
 		let columns=[]
-     if(datas.length!=0){
+     if(list.length!=0){
 		  columns=[{
 			 title: '选项',
 			 dataIndex: 'commit_percent',
 			 key: 'commit_percent',
 			 render: (text, record, index) => {
 				const _content = <span style={{color:text.type===true? "#29BD8B":'#333333', width: '100%'}}>
-					{text.value!="有效填写量"&&text.value!="wrong" && 
-						<MarkdownToHtml content={text.value} selector={(tableNum+1) + '' + (index+1)}></MarkdownToHtml>
+					{text.value>0&&text.value!="有效填写量"&&text.value!="wrong"||!text.value&&text.value!="有效填写量"&&text.value!="wrong"?text.value:text.value!="有效填写量"&&text.value!="wrong" &&
+						this.props&&this.props.data.is_md===false?<QuillForEditor
+						style={{ display: 'inline-block', width:'100%' , margin: '1px',padding:'0px'}}
+						readOnly={true}
+						value={this.setdata(text.value)}
+						// showUploadImage={this.handleShowUploadImage}
+					/>:text.value!="有效填写量"&&text.value!="wrong"&&<MarkdownToHtml content={text.value} selector={(tableNum+1) + '' + (index+1)}></MarkdownToHtml>
 						}
 				  	{text.value==="wrong" && "填写了错误答案" }
-					{text.value==="有效填写量" && "有效填写量" }
+					  {text.value==="有效填写量" && "有效填写量" }
 					</span>
 				return (
-				
+
 				(text._type === 0 || text._type === 1) ? <div style={{ display: 'flex'}}>
 					{<span style={{ 'margin-right': '4px', 'margin-top': '-2px'}}>{tagArray[index]}.</span>}
 				 	{_content}
 				</div> : <React.Fragment>{_content}</React.Fragment>
 				)
-        
+
 			 },
 		 }, {
 			 title: '小计',
@@ -122,13 +139,15 @@ class Exercisetablesmubus extends Component {
 					.Exermubu .ant-table-tbody> tr > td{
          			border-bottom: transparent;
 					}
-
+					.ql-editor{
+					 padding:0px !important;
+					}
 			`}
 				</style>
-				
-				{datas===undefined?"":<Table
+
+				{list===undefined?"":<Table
 					className={"Exermubu"}
-					dataSource={datas}
+					dataSource={list}
 					columns={columns}
 					pagination={false}
 					// loading={loadingstate}
diff --git a/public/react/src/modules/courses/exercise/new/JudgeDisplay.js b/public/react/src/modules/courses/exercise/new/JudgeDisplay.js
index 6cf637fc3..5cad3ed05 100644
--- a/public/react/src/modules/courses/exercise/new/JudgeDisplay.js
+++ b/public/react/src/modules/courses/exercise/new/JudgeDisplay.js
@@ -1,6 +1,6 @@
 import React,{ Component } from "react";
 import { Radio } from 'antd';
-import {  MarkdownToHtml } from 'educoder';
+import {  MarkdownToHtml,QuillForEditor } from 'educoder';
 import QestionDisplayHeader from './QestionDisplayHeader'
 
 
@@ -30,13 +30,25 @@ class JudgeDisplay extends Component{
     //     });
     }
   }
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
+  }
   render() {
     let { question_choices,
         question_id, index
      } = this.props;
 
     const qNumber = `question_${index}`;
-
+    console.log(this.props)
     return(
         <div className="bor-bottom-greyE padding20-30" id={qNumber} _id={question_id}>
             <style>{`
@@ -61,9 +73,14 @@ class JudgeDisplay extends Component{
                         <div key={optionIndex} className="fl mr30 df">
                             <Radio disabled className="lineh-25" checked={item.standard_boolean}></Radio>
 
-                            <MarkdownToHtml content={item.choice_text} selector={'judge_' + (index + 1) + optionIndex}
+                          {!this.props.exercise||this.props.exercise&&this.props.exercise.is_md?<MarkdownToHtml content={item.choice_text} selector={'judge_' + (index + 1) + optionIndex}
                                 className=""
-                            ></MarkdownToHtml>
+                            ></MarkdownToHtml>:<QuillForEditor
+                            readOnly={true}
+                            style={{ float: 'left', display: 'inline-block' ,padding:'0px',margin: '2px 0px 0px'}}
+                            value={this.setdata(item.choice_text)}
+                            // showUploadImage={this.handleShowUploadImage}
+                          />}
 
                         </div>)
 
diff --git a/public/react/src/modules/courses/exercise/new/MainDisplay.js b/public/react/src/modules/courses/exercise/new/MainDisplay.js
index 4613bd500..50cb0c61b 100644
--- a/public/react/src/modules/courses/exercise/new/MainDisplay.js
+++ b/public/react/src/modules/courses/exercise/new/MainDisplay.js
@@ -14,6 +14,19 @@ class MainDisplay extends Component{
   }
   componentDidMount = () => {
   }
+
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
+  }
   render() {
     let {standard_answer,
         question_id, index
@@ -49,7 +62,7 @@ class MainDisplay extends Component{
               ></MarkdownToHtml>:<QuillForEditor
                 readOnly={true}
                 style={{ float: 'left', display: 'inline-block' ,padding:'0px',margin: '2px 0px 0px'}}
-                value={standard_answer[0]?JSON.parse(standard_answer[0]):""}
+                value={this.setdata(standard_answer[0])}
                 // showUploadImage={this.handleShowUploadImage}
                 />}
             </React.Fragment>
diff --git a/public/react/src/modules/courses/exercise/new/NullDisplay.js b/public/react/src/modules/courses/exercise/new/NullDisplay.js
index 531d974b9..25cb2da7c 100644
--- a/public/react/src/modules/courses/exercise/new/NullDisplay.js
+++ b/public/react/src/modules/courses/exercise/new/NullDisplay.js
@@ -29,6 +29,18 @@ class NullDisplay extends Component{
     //     });
     }
   }
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
+  }
   render() {
     let { question_type, standard_answer,
         question_id,index,
@@ -88,7 +100,7 @@ class NullDisplay extends Component{
                                       ></MarkdownToHtml>:<QuillForEditor
                                         readOnly={true}
                                         style={{ float: 'left', display: 'inline-block' ,padding:'0px',margin: '2px 0px 0px'}}
-                                        value={item?JSON.parse(item):""}
+                                        value={this.setdata(item)}
                                         // showUploadImage={this.handleShowUploadImage}
                                       />
                                     )
diff --git a/public/react/src/modules/courses/exercise/new/QestionDisplayHeader.js b/public/react/src/modules/courses/exercise/new/QestionDisplayHeader.js
index 44a537c71..7e9b4f81b 100644
--- a/public/react/src/modules/courses/exercise/new/QestionDisplayHeader.js
+++ b/public/react/src/modules/courses/exercise/new/QestionDisplayHeader.js
@@ -16,6 +16,20 @@ class QestionDisplayHeader extends Component{
   componentDidMount = () => {
 
   }
+
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
+  }
+
   render() {
     let { question_title, question_score, question_type,
         question_id, index, displayCount,
@@ -29,7 +43,7 @@ class QestionDisplayHeader extends Component{
 
     const qName = qNameArray[question_type]
 
-    console.log(this.props)
+    // console.log(this.props)
     return(
         <React.Fragment>
         <div className="new_li">
@@ -82,7 +96,7 @@ class QestionDisplayHeader extends Component{
          ></MarkdownToHtml>:<QuillForEditor
           style={{ display: 'inline-block', width:'100%' , margin: '10px 0px 15px',padding:'0px'}}
           readOnly={true}
-          value={question_title?JSON.parse(question_title):""}
+          value={this.setdata(question_title)}
           // showUploadImage={this.handleShowUploadImage}
         />
         //  <div className="markdown-body" dangerouslySetInnerHTML={{__html: markdownToHTML1(question_title)}}
diff --git a/public/react/src/modules/courses/exercise/new/ShixunDisplay.js b/public/react/src/modules/courses/exercise/new/ShixunDisplay.js
index 85eb3e12a..10e2be02f 100644
--- a/public/react/src/modules/courses/exercise/new/ShixunDisplay.js
+++ b/public/react/src/modules/courses/exercise/new/ShixunDisplay.js
@@ -12,6 +12,20 @@ class ShixunDisplay extends Component{
     }
   }
   componentDidMount = () => {
+
+  }
+
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
   }
   render() {
     let { question_title,
@@ -111,7 +125,7 @@ class ShixunDisplay extends Component{
             </div>:<QuillForEditor
             readOnly={true}
             style={{ float: 'left', display: 'inline-block' ,padding:'0px',margin: '2px 0px 0px'}}
-            value={question_title?JSON.parse(question_title):""}
+            value={this.setdata(question_title)}
             // showUploadImage={this.handleShowUploadImage}
           />}
 
diff --git a/public/react/src/modules/courses/exercise/new/ShixunProgramming.js b/public/react/src/modules/courses/exercise/new/ShixunProgramming.js
index dbc9b6a6a..17c634b7b 100644
--- a/public/react/src/modules/courses/exercise/new/ShixunProgramming.js
+++ b/public/react/src/modules/courses/exercise/new/ShixunProgramming.js
@@ -13,6 +13,18 @@ class ShixunProgramming extends Component{
   }
   componentDidMount = () => {
   }
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
+  }
   render() {
     let { description,question_title,
       question_id, index, shixun_identifier,hack_identifier
@@ -50,7 +62,7 @@ class ShixunProgramming extends Component{
         ></MarkdownToHtml>:<QuillForEditor
           style={{ display: 'inline-block', width:'100%' , margin: '10px 0px 15px',padding:'0px'}}
           readOnly={true}
-          value={description?JSON.parse(description):""}
+          value={this.setdata(description)}
           // showUploadImage={this.handleShowUploadImage}
         />}
 
diff --git a/public/react/src/modules/courses/exercise/new/SingleDisplay.js b/public/react/src/modules/courses/exercise/new/SingleDisplay.js
index 7c008bb07..3697307cb 100644
--- a/public/react/src/modules/courses/exercise/new/SingleDisplay.js
+++ b/public/react/src/modules/courses/exercise/new/SingleDisplay.js
@@ -34,6 +34,19 @@ class SingleDisplay extends Component{
     //     });
     }
   }
+
+  setdata=(value)=>{
+    let newvalue;
+    try {
+      newvalue=JSON.parse(value);
+    }catch (e) {
+      newvalue={"ops":[{"insert":value}]};
+    }
+    if(value===undefined){
+      newvalue={"ops":[{"insert":""}]};
+    }
+    return newvalue
+  }
   render() {
     let {   question_type, question_choices,
         question_id, index,
@@ -83,7 +96,7 @@ class SingleDisplay extends Component{
                             ></MarkdownToHtml>:<QuillForEditor
                             readOnly={true}
                             style={{ float: 'left', display: 'inline-block',padding:'0px',margin: '2px 0px 0px'}}
-                            value={item.choice_text?JSON.parse(item.choice_text):""}
+                            value={this.setdata(item.choice_text)}
                             // showUploadImage={this.handleShowUploadImage}
                           />}
 
@@ -101,7 +114,7 @@ class SingleDisplay extends Component{
                             ></MarkdownToHtml>:<QuillForEditor
                           readOnly={true}
                           style={{ float: 'left', display: 'inline-block' ,padding:'0px',margin: '2px 0px 0px'}}
-                          value={item.choice_text?JSON.parse(item.choice_text):""}
+                          value={this.setdata(item.choice_text)}
                           // showUploadImage={this.handleShowUploadImage}
                         />}