diff --git a/public/react/src/modules/courses/shixunHomework/Homeworddescription.js b/public/react/src/modules/courses/shixunHomework/Homeworddescription.js
index 405490f38..472d76d2c 100644
--- a/public/react/src/modules/courses/shixunHomework/Homeworddescription.js
+++ b/public/react/src/modules/courses/shixunHomework/Homeworddescription.js
@@ -41,7 +41,7 @@ class Homeworddescription extends Component {
         super(props);
         this.state = {
             props: props,
-            description:undefined,
+            description:props.description,
         }
 
 
@@ -74,10 +74,8 @@ class Homeworddescription extends Component {
             <div >
                 <div  style={{
                     "background-color":"#FFFFff",
-                    "margin-top":"20px",
                     "padding":"20px 20px",
                     "position": "relative",
-                    "border-bottom": "1px solid #EDEDED",
                     "margin-bottom":" 0px"}}>
                     <style>
                         {`
@@ -85,7 +83,8 @@ class Homeworddescription extends Component {
                   `}
                     </style>
                     <Form.Item
-                        label="作业说明"
+                        label=""
+                        className="mdInForm"
                     >
                         {/*<TextArea  placeholder="作业说明..." value={this.state.description} onInput={this.settextarea} style={{"height": "120px"}}/>*/}
                             {/*<TextArea style={{"height": "120px"}}*/}
@@ -93,7 +92,7 @@ class Homeworddescription extends Component {
                         <TPMMDEditor ref={this.mdRef} placeholder={'作业说明'}
                                      mdID={'courseMessageMD'} initValue={this.state.description}   className="courseMessageMD" onChange={this.settextarea} style={{"height": "120px"}}></TPMMDEditor>
                     </Form.Item>
-                    <div className="clearfix">
+                    <div className="clearfix mt10">
                             <Button  type="primary" className="defalutSubmitbtn  fr mr20 "style={{"width":"90px"}} onClick={this.onSaveExercise} >保存</Button>
                             <Button className="defalutCancelbtn fr mr20 w20"  style={{"width":"90px"}} onClick={this.clickcancel} >取消</Button>
                     </div>
diff --git a/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js b/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js
index 01abe1c62..715ffb7e8 100644
--- a/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js
+++ b/public/react/src/modules/courses/shixunHomework/Shixunworkdetails/ShixunWorkModal.js
@@ -15,7 +15,7 @@ class ShixunWorkModal extends Component{
 	}
 	componentDidMount() {
 		let {group_list}=this.state;
-   let url="/homework_commons/"+this.props.match.params.homeworkid+"/group_list.json";
+		let url="/homework_commons/"+this.props.match.params.homeworkid+"/group_list.json";
 		axios.get(url,{params:{
 				limit:10,
 				page:1,
@@ -32,7 +32,6 @@ class ShixunWorkModal extends Component{
 					newgroup_list.push(item)
 				})
 				if( response.data.ungroup_list!== undefined ||  response.data.ungroup_list !== null){
-					console.log()
 					newgroup_list.push(response.data.ungroup_list)
 				}
 				this.setState({
@@ -50,7 +49,7 @@ class ShixunWorkModal extends Component{
 
 	//勾选实训
 	shixunhomeworkedit=(checkedValues)=>{
-    let types=false
+		let types=false
 		let{group_list}=this.state;
 		group_list.map((item,key)=>{
 			if(item!=undefined){
@@ -88,7 +87,6 @@ class ShixunWorkModal extends Component{
 			let {page,limit,group_list}=this.state;
 			let newpage=page+1;
 			let newgroup_list=group_list;
-			debugger
 			let url="/homework_commons/"+this.props.match.params.homeworkid+"/group_list.json";
 
 			axios.get(url,{params:{
@@ -134,30 +132,30 @@ class ShixunWorkModal extends Component{
 
 		let {data}=this.props;
 		if(e.target.checked===true){
-      if(data&&data.length===0){
+			if(data&&data.length===0){
 				let id=[]
 				group_list.forEach((item,key)=>{
 					id.push(item.id)
 				})
-	      this.setState({
-		      group_ids:id,
-		      onChangetype:e.target.checked
-	      })
-      }else{
-      	let id=[]
-		  group_list.forEach((item,key)=>{
-		      id.push(item.id)
-	      })
-	      this.setState({
-		      group_ids:id,
-		      onChangetype:e.target.checked
-	      })
-      }
-		}else{
 				this.setState({
-					group_ids:[],
+					group_ids:id,
 					onChangetype:e.target.checked
 				})
+			}else{
+				let id=[]
+				group_list.forEach((item,key)=>{
+					id.push(item.id)
+				})
+				this.setState({
+					group_ids:id,
+					onChangetype:e.target.checked
+				})
+			}
+		}else{
+			this.setState({
+				group_ids:[],
+				onChangetype:e.target.checked
+			})
 		}
 
 	}
@@ -187,7 +185,7 @@ class ShixunWorkModal extends Component{
 						message:"提示",
 						description: response.data.message
 					});
-         console.log(this.props)
+					console.log(this.props)
 				}else if(response.data.status === -1){
 					notification.open({
 						message:"提示",
@@ -222,7 +220,7 @@ class ShixunWorkModal extends Component{
 	render(){
 		let {course_groups,group_ids,onChangetype,group_list}=this.state;
 		// let {data}=this.props;
-    // console.log(group_list)
+		// console.log(group_list)
 		// console.log(course_groups)
 		return(
 			<div>
@@ -251,59 +249,59 @@ class ShixunWorkModal extends Component{
 
 						{course_groups===undefined?"":
 							<ul className="upload_select_box fl clearfix mt10 mb10" tyle={{"overflow-y":"auto"}}id="search_not_members_list"
-				      onScroll={this.contentViewScroll}
-						  >
-
-
-						 <Checkbox.Group style={{ width: '100%' }}  onChange={this.shixunhomeworkedit} value={group_ids}>
-								{
-									group_list===undefined?course_groups.ungroup_list.work_count===0?"":
-
-										  <div className="clearfix edu-txt-center lineh-40 bor-bottom-greyE">
-											  <li className="fl task-hide" style={{width: '240px'}}>
-												  <Checkbox
-													  className="fl task-hide edu-txt-left"
-													  name="shixun_homework[]"
-													  value={course_groups.ungroup_list.id}
-												  >
-													  <label style={{"textAlign": "left", "color": "#05101A"}}
-													         className="task-hide color-grey-name" title="frerere">{course_groups.ungroup_list.name}</label>
-												  </Checkbox>
-											  </li>
-											  <li className="fl" style={{width: '100px'}}>
-												  {course_groups.ungroup_list.work_count}
-											  </li>
-											  <li className="fl" style={{width: '160px'}}>
-												  {course_groups.ungroup_list.last_review_time}
-											  </li>
-										  </div>
-
-									  :
-									  group_list&&group_list.map((item,key)=>{
-									   	return(
-												item.work_count===0?"":<div className="clearfix edu-txt-center lineh-40 bor-bottom-greyE" key={key}>
-											    <li className="fl task-hide" style={{width: '240px'}}>
-												    <Checkbox
-													    className="fl task-hide edu-txt-left"
-													    name="shixun_homework[]"
-													    value={item=== undefined?"":item.id}
-												    >
-													    <label style={{"textAlign": "left", "color": "#05101A"}}
-													           className="task-hide color-grey-name" title="frerere">{item===undefined?"":item.name}</label>
-												    </Checkbox>
-											    </li>
-											    <li className="fl" style={{width: '100px'}}>
-												    {item===undefined?"":item.works_count===undefined?item.work_count:item.works_count}
-											    </li>
-											    <li className="fl" style={{width: '160px'}}>
-												    {item===undefined?"":item.last_review_time}
-											    </li>
-										    </div>
+									onScroll={this.contentViewScroll}
+							>
+
+
+								<Checkbox.Group style={{ width: '100%' }}  onChange={this.shixunhomeworkedit} value={group_ids}>
+									{
+										group_list===undefined?course_groups.ungroup_list.work_count===0?"":
+
+											<div className="clearfix edu-txt-center lineh-40 bor-bottom-greyE">
+												<li className="fl task-hide" style={{width: '240px'}}>
+													<Checkbox
+														className="fl task-hide edu-txt-left"
+														name="shixun_homework[]"
+														value={course_groups.ungroup_list.id}
+													>
+														<label style={{"textAlign": "left", "color": "#05101A"}}
+																	 className="task-hide color-grey-name" title="frerere">{course_groups.ungroup_list.name}</label>
+													</Checkbox>
+												</li>
+												<li className="fl" style={{width: '100px'}}>
+													{course_groups.ungroup_list.work_count}
+												</li>
+												<li className="fl" style={{width: '160px'}}>
+													{course_groups.ungroup_list.last_review_time}
+												</li>
+											</div>
+
+											:
+											group_list&&group_list.map((item,key)=>{
+												return(
+													item.work_count===0?"":<div className="clearfix edu-txt-center lineh-40 bor-bottom-greyE" key={key}>
+														<li className="fl task-hide" style={{width: '240px'}}>
+															<Checkbox
+																className="fl task-hide edu-txt-left"
+																name="shixun_homework[]"
+																value={item=== undefined?"":item.id}
+															>
+																<label style={{"textAlign": "left", "color": "#05101A"}}
+																			 className="task-hide color-grey-name" title="frerere">{item===undefined?"":item.name}</label>
+															</Checkbox>
+														</li>
+														<li className="fl" style={{width: '100px'}}>
+															{item===undefined?"":item.works_count===undefined?item.work_count:item.works_count}
+														</li>
+														<li className="fl" style={{width: '160px'}}>
+															{item===undefined?"":item.last_review_time}
+														</li>
+													</div>
 												)
 											})
-								}
-							</Checkbox.Group>
-						</ul>
+									}
+								</Checkbox.Group>
+							</ul>
 						}
 						<div className={"clearfix"}>
 							<Checkbox checked={onChangetype} onChange={this.onChange} className={"ml10"}>{onChangetype===true?"清除":"全选"}</Checkbox>
diff --git a/public/react/src/modules/courses/shixunHomework/Workquestionandanswer.js b/public/react/src/modules/courses/shixunHomework/Workquestionandanswer.js
index 46fda3e10..922496d69 100644
--- a/public/react/src/modules/courses/shixunHomework/Workquestionandanswer.js
+++ b/public/react/src/modules/courses/shixunHomework/Workquestionandanswer.js
@@ -467,19 +467,31 @@ class Workquestionandanswer extends Component {
                             <div className="font-16 color-green fl pl20 mt10">作业说明:</div>
                             {
                                 this.props.isAdmin()&&this.props.isAdmin()===true ?
+
+                                  (Showupdateinstructions&& Showupdateinstructions === true?"":
                                     <Tooltip placement="top" title="编辑"><i
-                                        className="color-green font-18 iconfont icon-bianjidaibeijing fr pr20 " onClick={()=>this.jobdescriptiondisplaybj()} ></i></Tooltip>
-                                    :""
+                                      className="color-green font-18 iconfont icon-bianjidaibeijing fr pr20 " onClick={()=>this.jobdescriptiondisplaybj()} ></i></Tooltip>
+                                    ):""
                             }
 
                         </div>
 
                         <span>
-                       <div className="font-16 color-dark   break_word flex1 pl20  "  style={{"padding":"10px 10px 10px 20px"}}>
-                       {jobsettingsdata === undefined ? "无" : jobsettingsdata === null ? "无" : jobsettingsdata === "null" ? "无" :
-                         jobsettingsdata.data.explanation=== undefined?"无" :jobsettingsdata.data.explanation=== null?"无":
-                         <div dangerouslySetInnerHTML={{__html:markdownToHTML(jobsettingsdata.data.explanation).replace(/▁/g,"▁▁▁")}}></div>
-                       }
+                       <div className="font-16 color-dark   break_word flex1  " >
+                            {  Showupdateinstructions&& Showupdateinstructions === true?
+                              <div >
+                                  <Homeworddescription {...this.props} ReleaseNotes={this.ReleaseNotes} NOReleaseNotes ={this.NOReleaseNotes} description={jobsettingsdata === undefined ?"":jobsettingsdata === null ?"":jobsettingsdata === "null"?"":  jobsettingsdata.data.explanation=== undefined?"":jobsettingsdata.data.explanation=== null?"":jobsettingsdata.data.explanation} ></Homeworddescription>
+                              </div>
+                              :
+                              <div className="pl20 " style={{"padding":"10px 10px 10px 20px"}}>
+                                  {jobsettingsdata === undefined ? "无" : jobsettingsdata === null ? "无" : jobsettingsdata === "null" ? "无" :
+                                    jobsettingsdata.data.explanation=== undefined?"无" :jobsettingsdata.data.explanation=== null?"无":
+                                      <div dangerouslySetInnerHTML={{__html:markdownToHTML(jobsettingsdata.data.explanation).replace(/▁/g,"▁▁▁")}}></div>
+                                  }
+
+                              </div>
+                            }
+
                         </div>
                       </span>
                     </div>
@@ -494,12 +506,12 @@ class Workquestionandanswer extends Component {
                     {/* <div className="edu-back-white mb20  graduateTopic course-message"> */}
                         {/*<GraduateTopicReply memo={{id: graduation_topic_id, user_id: topicInfo && topicInfo.user_id}} course_id={course_id} {...this.props}></GraduateTopicReply>*/}
                     {/* </div> */}
-                    {  Showupdateinstructions&& Showupdateinstructions === true?
-                      <div >
-                          <Homeworddescription {...this.props} ReleaseNotes={this.ReleaseNotes} NOReleaseNotes ={this.NOReleaseNotes} ></Homeworddescription>
-                      </div>
-                      :""
-                    }
+                    {/*{  Showupdateinstructions&& Showupdateinstructions === true?*/}
+                    {/*  <div >*/}
+                    {/*      <Homeworddescription {...this.props} ReleaseNotes={this.ReleaseNotes} NOReleaseNotes ={this.NOReleaseNotes} ></Homeworddescription>*/}
+                    {/*  </div>*/}
+                    {/*  :""*/}
+                    {/*}*/}
                     { homework_id && <CommonReply
                         memo={{
                             id: homework_id,