diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
index 46647af6f..0f10ee69a 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
@@ -276,16 +276,27 @@ class Challengesjupyter extends Component {
 					if(info.file.response.status===0){
 					try {
 						this.setState({
-							jupyter_url : ""
+							jupyter_url : null,
+							booljupyterurls:false,
 						})
 						setTimeout(()=>{
 							this.setState({
-								jupyter_url : this.state.jupyter_url,
+								jupyter_url : this.state.jupyter_urls,
+								booljupyterurls:true,
 							})
-						},1000)
+						},1000);
 						this.props.showNotification('上传文件成功!');
 					}catch (e) {
-
+						this.setState({
+							jupyter_url : null,
+							booljupyterurls:false,
+						})
+						setTimeout(()=>{
+							this.setState({
+								jupyter_url : this.state.jupyter_urls,
+								booljupyterurls:true,
+							})
+						},1000);
 					}
 					}
 
@@ -313,7 +324,7 @@ class Challengesjupyter extends Component {
 		const uploadProps = {
 			width: 600,
 			fileList,
-			multiple: true,
+			multiple: false,
 			data:{
 				identifier:id,
 			},