diff --git a/public/react/src/context/TPIContextProvider.js b/public/react/src/context/TPIContextProvider.js
index 3fbdb6ed1..df738ef98 100644
--- a/public/react/src/context/TPIContextProvider.js
+++ b/public/react/src/context/TPIContextProvider.js
@@ -32,7 +32,7 @@ import _ from 'lodash'
 
 import TPIContext from './TPIContext'
 import { EDU_ADMIN, EDU_SHIXUN_MANAGER, EDU_SHIXUN_MEMBER, EDU_CERTIFICATION_TEACHER
-    , EDU_GAME_MANAGER, EDU_TEACHER, EDU_NORMAL, EDU_BUSINESS} from 'educoder'
+    , EDU_GAME_MANAGER, EDU_TEACHER, EDU_NORMAL, EDU_BUSINESS, CNotificationHOC } from 'educoder'
 import { MuiThemeProvider, createMuiTheme, withStyles } from 'material-ui/styles';
 import MUIDialogStyleUtil from '../modules/page/component/MUIDialogStyleUtil'
 
@@ -877,6 +877,7 @@ pop_box_new(htmlvalue, 480, 182);
 		return (
 				<TPIContext.Provider
 					value={{
+						...this.props,
 						...this.state,
 						resetTestSetsExpandedArray: this.resetTestSetsExpandedArray,
 						onRunCodeTestFinish: this.onRunCodeTestFinish,
@@ -961,7 +962,7 @@ pop_box_new(htmlvalue, 480, 182);
 	}
 }
 
-export default  withStyles(styles) (TPIContextProvider);
+export default  CNotificationHOC() (withStyles(styles) (TPIContextProvider));
 
 
 
diff --git a/public/react/src/modules/courses/common/CNotificationHOC.js b/public/react/src/modules/courses/common/CNotificationHOC.js
index 9a08268b1..a0374f75b 100644
--- a/public/react/src/modules/courses/common/CNotificationHOC.js
+++ b/public/react/src/modules/courses/common/CNotificationHOC.js
@@ -109,7 +109,7 @@ export function CNotificationHOC(options = {}) {
         const { title, content,subContent, onOk, onCancel, okText } = object;
         this.onCancel = onCancel
         this.onOk = onOk
-        this.okText = okText || ''
+        this.okText = okText || '确定'
         this.setState({ title, content , subContent , dialogOpen: true  })
       }
       onDialogOkBtnClick = () => {
@@ -146,7 +146,15 @@ export function CNotificationHOC(options = {}) {
         
         return (
           <React.Fragment>
+            <style>
+              {`
+                .confirmModal .task-popup-content {
+                  padding: 0px;
+                }
+              `}
+            </style>
             <Modals 
+                className="confirmModal"
                 modalsType={dialogOpen}
                 modalsTopval={
 									content
diff --git a/public/react/src/modules/modals/Modals.js b/public/react/src/modules/modals/Modals.js
index b3029966e..b67bc0ddc 100644
--- a/public/react/src/modules/modals/Modals.js
+++ b/public/react/src/modules/modals/Modals.js
@@ -13,6 +13,7 @@ render() {
     const antIcons = <Icon type="loading" style={{ fontSize: 24 }} spin />
     return(
          <Modal
+          className={this.props.className}
          keyboard={false}
           title="提示"
           visible={this.props.modalsType===undefined?false:this.props.modalsType}
diff --git a/public/react/src/modules/page/Index.js b/public/react/src/modules/page/Index.js
index ab0f30e70..aa395e5cf 100644
--- a/public/react/src/modules/page/Index.js
+++ b/public/react/src/modules/page/Index.js
@@ -210,6 +210,8 @@ class Index extends Component {
 
 		    		{/*  区分下repo和evaluate模块的，以及子模块的 */}
 						<MainContentContainer
+							confirm={context.confirm}
+
 							onDrawerButtonClick={this.onDrawerButtonClick}
 							grade={context.grade}
 							allowed_unlock={context.allowed_unlock}
diff --git a/public/react/src/modules/page/VNCContainer.js b/public/react/src/modules/page/VNCContainer.js
index ecc2c8a41..ec8a31820 100644
--- a/public/react/src/modules/page/VNCContainer.js
+++ b/public/react/src/modules/page/VNCContainer.js
@@ -21,7 +21,8 @@ class VNCContainer extends Component {
 		
 		this.state = {
 			fileTreeSelectedKeys: [],
-			repositoryCode: ''
+			repositoryCode: '',
+			displayKey: 1
 		}
 	}
 	componentDidMount() {
@@ -114,6 +115,43 @@ class VNCContainer extends Component {
 	showCodeEvaluate = () => {
 		this.setState({ bottomDrawer: true })
 	}
+	onResetVNC = () => {
+		// 桌面系统将恢复到初始状态，您在系统中创建的数据可能会丢失
+		// 请确保您的数据已保存（如：版本库代码已推送到服务器）
+		// 是否确认重置？
+		this.props.confirm({
+			content: <div style={{textAlign: 'center'}}>
+				<div>桌面系统将恢复到初始状态，您在系统中创建的数据可能会丢失</div>
+				<div>请确保您的数据已保存（如：版本库代码已推送到服务器）</div>
+				<div>是否确认重置？</div>
+			</div>,
+			onOk: () => {
+				const url = `/tasks/${this.props.game.identifier}/reset_vnc_link.json`
+				axios.get(url, {
+				}).then((response) => {
+					if (response.data.data && response.data.data.vnc_url) {
+						// reset
+						this.setState({
+							displayKey: this.state.displayKey + 1,
+							vnc_url: response.data.data.vnc_url
+						})
+					} else {
+					}
+					// this.setState({ isEditablePath, currentPath: path });
+
+				}).catch(error =>{
+					console.log(error)
+					this.setState({ readingCodeLoading: false });
+					this.props.showSnackbar(`服务端异常，请联系管理员！`);
+				})
+
+				console.log('doooo')
+			},
+			onCancel() {
+				console.log('Cancel');
+			},
+		})
+	}
 	
 	/*
 	selectedKeys={fileTreeSelectedKeys}
@@ -191,6 +229,30 @@ class VNCContainer extends Component {
 						.codeInDrawer .ant-spin-nested-loading > div > .ant-spin .ant-spin-text {
 							text-shadow: none;
 						}
+
+						.resetVNC {
+							top: 30px;
+							writing-mode: initial;
+							left: calc(100% - 120px);
+							background-image: none;
+							width: auto;
+							background: #081516;
+							height: 30px;
+							padding: 0 6px;
+							border-radius: 4px;
+						}
+						.resetVNC .text {
+							top: 0px;
+							writing-mode: initial;
+							left: unset;
+						}
+						.resetVNC .text span {
+							vertical-align: middle;
+							margin-left: 2px;
+						}
+						.float_button:hover .text {
+							color: #4CACFF;
+						}
 					`}</style>
 					<div style={{ 'padding': '16px', 'border-bottom': '1px solid #3A383A' }}>
 						<div style={{ color: '#888888' }}>网址克隆</div>
@@ -207,9 +269,14 @@ class VNCContainer extends Component {
 
 					></RepoTree>
 				</SecondDrawer>
-                {/* <FloatButton></FloatButton> */}
+                <FloatButton className="resetVNC" onClick={this.onResetVNC}>
+					<i className="iconfont icon-zhongzhi2 font-16 "></i>
+					<span>重置桌面系统</span>
+				</FloatButton>
                 <VNCDisplay
                     {...this.props}
+					key={this.state.displayKey}
+					vnc_url={this.state.vnc_url || this.props.vnc_url}
                 >
 				
 					<Drawer
diff --git a/public/react/src/modules/page/VNCDisplay.js b/public/react/src/modules/page/VNCDisplay.js
index 53f8c09d9..536ba43cb 100644
--- a/public/react/src/modules/page/VNCDisplay.js
+++ b/public/react/src/modules/page/VNCDisplay.js
@@ -6,6 +6,7 @@ const $ = window.$;
 // const showIframeContent = window.location.search.indexOf('vnc=1') != -1;
 class VNCDisplay extends Component {
 	componentDidMount() {
+		console.log('vnc init')
 		console.log(RFB)
 
         let rfb;