diff --git a/app/services/homeworks_service.rb b/app/services/homeworks_service.rb
index 0dc814c89..1c57b7f12 100644
--- a/app/services/homeworks_service.rb
+++ b/app/services/homeworks_service.rb
@@ -346,7 +346,7 @@ class HomeworksService
       work.work_score = format("%.2f",(score < 0 ? 0 : score).to_f) unless work.ultimate_score
       #logger.info("#############work_score: #{score}")
       work.calculation_time = Time.now
-      work.save!
+      work.save(validate: false)
     end
   end
 end
\ No newline at end of file
diff --git a/public/react/src/AppConfig.js b/public/react/src/AppConfig.js
index acd18e6c3..95b08ecb4 100644
--- a/public/react/src/AppConfig.js
+++ b/public/react/src/AppConfig.js
@@ -52,7 +52,6 @@ export function initAxiosInterceptors(props) {
 			//proxy="http://47.96.87.25:48080"
 			proxy="https://pre-newweb.educoder.net"
       proxy="https://test-newweb.educoder.net"
-      proxy="https://test-jupyterweb.educoder.net"
 	     //proxy="http://192.168.2.63:3001"
 
     // 在这里使用requestMap控制，避免用户通过双击等操作发出重复的请求；
diff --git a/public/react/src/modules/courses/statistics/Statistics.js b/public/react/src/modules/courses/statistics/Statistics.js
index 21041a59c..d8647870e 100644
--- a/public/react/src/modules/courses/statistics/Statistics.js
+++ b/public/react/src/modules/courses/statistics/Statistics.js
@@ -392,12 +392,13 @@ class Statistics extends Component{
 			)
 		}
 
-		// console.log(this.props.isAdmin)
+		 // console.log("Statistics");
+		 // console.log(this.props.user.course_is_end)
 
-
-		const operations = <React.Fragment>
+     const course_is_endismy=this.props&&this.props.user&&this.props.user.course_is_end;
+		 const operations = <React.Fragment>
 			{course_grouptype===false||this.state.course_groups.length===0?"":
-				this.state.activeKey==="1"?
+				this.props.isAdmin()===true?
 					<Dropdownbox
 						{...this.props}
 						{...this.state}
@@ -408,12 +409,17 @@ class Statistics extends Component{
 			}
 			{
 				this.state.activeKey==="1"?
-					<a className={"ml20 ant-btn-link"} onClick={()=>this.setComputeTimet(this.props.match.params.coursesId)}>获取最新成绩</a>
+					(
+						course_is_endismy===false?
+							<a className={"ml20 ant-btn-link"} onClick={()=>this.setComputeTimet(this.props.match.params.coursesId)}>获取最新成绩</a>
+							:
+							""
+					)
 					:""
 			}
 			{
-				this.state.activeKey==="1"?
-			<a className={"ml20 ant-btn-link"} onClick={()=>this.derivefun(this.state.activeKey==="1"?`/courses/${this.props.match.params.coursesId}/export_member_scores_excel.xlsx`:`/courses/${this.props.match.params.coursesId}/export_member_act_score.xlsx`)}>导出</a>
+				this.props.isAdmin()===true?
+					<a className={"ml20 ant-btn-link"} onClick={()=>this.derivefun(this.state.activeKey==="1"?`/courses/${this.props.match.params.coursesId}/export_member_scores_excel.xlsx`:`/courses/${this.props.match.params.coursesId}/export_member_act_score.xlsx`)}>导出</a>
 					:""
 			}
 		</React.Fragment>;
@@ -592,7 +598,7 @@ class Statistics extends Component{
 									}
 								`
 							}</style>
-						<Tabs  className="statisticsTabs" activeKey={this.state.activeKey} onChange={this.activeKey} tabBarExtraContent={this.props.isAdmin()===true?operations:""}>
+						<Tabs  className="statisticsTabs" activeKey={this.state.activeKey} onChange={this.activeKey} tabBarExtraContent={operations}>
 							<TabPane tab="学习成绩" key="1" className={"statisticsTabs1"} >
 								{bomdata===undefined||bomdata===null?"":bomdata.length===0?<NoneData/>:<Table
 									columns={columns}
diff --git a/public/react/src/modules/tpm/component/TPMNav.js b/public/react/src/modules/tpm/component/TPMNav.js
index ac5128f26..677c6bb83 100644
--- a/public/react/src/modules/tpm/component/TPMNav.js
+++ b/public/react/src/modules/tpm/component/TPMNav.js
@@ -53,13 +53,8 @@ class TPMNav extends Component {
 						 {/*jupyter*/}
 						{
 							this.props.is_jupyter===true?
-								(
-									is_teacher===true?
 										<Link to={`/shixuns/${shixunId}/dataset`}
 													className={`${match.url.indexOf('dataset') != -1 ? 'active' : ''} fl mr40`}>数据集</Link>
-						      	:""
-								)
-
 								:""
 						}
 
@@ -80,12 +75,8 @@ class TPMNav extends Component {
 									<Link to={`/shixuns/${shixunId}/audit_situation`}
 												className={`${match.url.indexOf('audit_situation') != -1 ? 'active' : ''} fl`}>审核情况</Link>
 							 :
-								is_teacher===true?
 									<Link to={`/shixuns/${shixunId}/audit_situation`}
 												className={`${match.url.indexOf('audit_situation') != -1 ? 'active' : ''} fl`}>审核情况</Link>
-									:
-							    ""
-
 							)
 
 
diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
index 3bbc4bf8f..81959a30b 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
@@ -189,6 +189,7 @@ class Challengesjupyter extends Component {
 		const  business  = this.props&&this.props.current_user&&this.props.current_user.business?this.props.current_user.business:false;
 		//管理员
 		const  admin = this.props&&this.props.current_user&&this.props.current_user.admin?this.props.current_user.admin:false;
+
 		let  mysidentity =false;
 		try {
 			mysidentity =this.props.identity < 5 &&ChallengesDataList&& ChallengesDataList.shixun_status< 3?true:false;