diff --git a/public/react/src/modules/courses/poll/PollDetailIndex.js b/public/react/src/modules/courses/poll/PollDetailIndex.js
index 79eecd694..9cbeef706 100644
--- a/public/react/src/modules/courses/poll/PollDetailIndex.js
+++ b/public/react/src/modules/courses/poll/PollDetailIndex.js
@@ -1,204 +1,204 @@
-import React,{ Component } from "react";
-import {Menu} from "antd";
-
-
-import CoursesListType from '../coursesPublic/CoursesListType';
-import { WordsBtn } from 'educoder'
-import PollTabFirst from './PollDetailTabFirst'
-import PollTabSecond from './PollDetailTabSecond'
-import PollTabThird from './PollDetailTabThird'
-import PollTabForth from './PollDetailTabForth'
-
-import DownloadMessage from '../../modals/DownloadMessage';
-
-import ImmediatelyPublish from './pollPublicBtn/ImmediatelyPublish'
-import ImmediatelyEnd from './pollPublicBtn/ImmediatelyEnd'
-import CancelPublish from './pollPublicBtn/CancelPublish'
-
-import '../css/members.css'
-import '../css/busyWork.css'
-
-import axios from 'axios'
-
-const map={1:"未发布",2:"提交中",3:"已截止"}
-class PollDetailIndex extends Component{
-  constructor(props){
-    super(props);
-    this.state={
-      tab:["0"],
-      pollDetail:undefined,
-      user_permission:undefined
-    }
-  }
-
-  getPollInfo=()=>{
-    console.log(this.props);
-    let pollId=this.props.match.params.pollId;
-    let url=`/polls/${pollId}/common_header.json`
-    axios.get(url).then((result)=>{
-      if(result.status==200){
-        this.setState({
-          pollDetail:result.data,
-          user_permission:result.data.user_permission
-        })
-      }
-    }).catch((error)=>{
-      console.log(error);
-    })
-  }
-
-  componentDidMount(){
-    const query =this.props.location.search;
-    if(query.indexOf("?")!=-1){
-      const type = query.split('?');
-      let name = type[1].split("tab=");
-      name = String(name).split(",");
-       name = decodeURI(name[1]);
-      if(name!=undefined && name!="" && name!="undefined"){
-        this.setState({
-          tab:[name]
-        })
-      }
-    }
-    
-    this.getPollInfo();
-  }
-
-  //切换tab
-  changeTab=(e)=>{
-    this.setState({
-      tab:e.key
-    })
-  }
-
-  confirmysl(url){
-    this.refs.DownloadMessage.confirmysl(url);
-  }
-
-  render(){
-    let {tab,pollDetail,user_permission}=this.state;
-    
-    const isAdmin =this.props.isAdmin();
-    const isStudent = this.props.isStudent();
-    return(
-      <div className="newMain">
-        <DownloadMessage {...this.props} ref="DownloadMessage" />
-        <div className="educontent mt10 mb50">
-          <p className="clearfix mb20">
-            <WordsBtn style="grey" className="fl" to={`/courses/${this.props.match.params.coursesId}/students`}>{this.props.coursedata.name}</WordsBtn>
-            <span className="color-grey-9 fl ml3 mr3">&gt;</span>
-            <WordsBtn style="grey" className="fl" to={`/courses/${this.props.match.params.coursesId}/polls/${user_permission && user_permission.left_banner_id}`}>问卷</WordsBtn>
-            <span className="color-grey-9 fl ml3 mr3">&gt;</span>
-            <span>问卷详情</span>
-          </p>
-          <p className="clearfix mb20 lineh-25">
-            <span className="color-grey-3 font-24 fl task-hide break-word" style={{maxWidth:"900px",lineHeight:"25px"}} title={`${pollDetail && pollDetail.polls_name}`}>{pollDetail && pollDetail.polls_name}</span>
-            <span className="mt3 fl" style={{height:"25px"}}>
-              <CoursesListType typelist={[`${map[pollDetail && pollDetail.polls_status]}`]} typesylename={""} />
-            </span>
-            <WordsBtn className="fr font-16 mt2" style="grey" onClick={()=>this.props.history.goBack()}>返回</WordsBtn>
-          </p>
-          <div>
-            <div className="clearfix edu-back-white pl30 pr30 bor-bottom-greyE">
-              <div className="fl task_menu_ul">
-                <Menu mode="horizontal" selectedKeys={tab} onClick={this.changeTab}>
-                  <Menu.Item key="0">答题列表</Menu.Item>
-                  { 
-                    (isAdmin || (isStudent && pollDetail && pollDetail.show_result == 1 && pollDetail.polls_status == 3 && user_permission && user_permission.current_status==1)) && <Menu.Item key="1">统计结果</Menu.Item>
-                  }
-                  { isAdmin && <Menu.Item key="2">问卷预览</Menu.Item> }
-                  <Menu.Item key="3">设置</Menu.Item>
-                </Menu>
-              </div>
-              {
-                isAdmin && 
-                <span className="fr mt22">
-                  <WordsBtn style="blue" to={`/courses/${this.props.match.params.coursesId}/polls/${this.props.match.params.pollId}/edit`} className="fl mr20 font-16">编辑问卷</WordsBtn>
-                  {/* 立即发布 */}
-                  {
-                    user_permission && user_permission.poll_unpublish_count > 0 ?
-                    <li className="fl mr20">
-                      <ImmediatelyPublish 
-                        {...this.props} 
-                        {...this.state}
-                        style="blue"
-												className={"font-16"}
-                        checkBoxValues={[this.props.match.params.pollId]}
-                        action={this.getPollInfo}
-                        single={true}
-                      ></ImmediatelyPublish>
-                    </li>
-                    :""
-                  }
-                  {/* 立即截止、撤销发布 */}
-                  {
-                    user_permission && user_permission.poll_publish_count > 0 ?
-                    <li className="fl mr20">
-                      <ImmediatelyEnd
-                        {...this.props} 
-                        {...this.state}
-                        style="blue"
-												className={"font-16"}
-                        checkBoxValues={[this.props.match.params.pollId]}
-                        action={this.getPollInfo}
-                        single={true}
-                      ></ImmediatelyEnd>
-                    </li>
-                    :""
-                  }
-                  {/* {
-                    user_permission && user_permission.poll_publish_count>0 ?
-                    <li className="fl mr20">
-                      <CancelPublish
-                        {...this.props} 
-                        {...this.state}
-                        style="blue"
-                        checkBoxValues={[this.props.match.params.pollId]}
-                        action={this.getPollInfo}
-                      ></CancelPublish>
-                    </li>
-                    :""
-                  } */}
-                  <a className="fl color-blue font-16" onClick={()=>this.confirmysl("/polls/"+this.props.match.params.pollId+"/commit_result.xlsx")} href="javascript:void(0);">导出统计</a>
-                </span>
-              }
-              {
-                isStudent && 
-                <span className="fr mt22 font-16">
-                  {
-                    user_permission && user_permission.current_status!=3 ? 
-                    <WordsBtn style="blue" to={`/courses/${this.props.match.params.coursesId}/polls/${this.props.match.params.pollId}/users/${this.props.current_user.login}`}>
-                      { user_permission && user_permission.current_status ==0 ? "继续答题" : user_permission.current_status == 1 ? "查看答题" : "开始答题"  }
-                    </WordsBtn>
-                    :""
-                  }
-                </span>
-              }
-              
-            </div>
-
-            {
-              // 答题列表
-              parseInt(tab[0])==0 && <PollTabFirst {...this.props} {...this.state}></PollTabFirst>
-            }
-            {
-              // 统计结果
-              parseInt(tab[0])==1 && <PollTabSecond {...this.props} {...this.state}></PollTabSecond>
-            }
-
-            {
-              //问卷预览
-              parseInt(tab[0])==2 && <PollTabThird {...this.props} {...this.state}></PollTabThird>
-            }
-            {
-              //设置
-              parseInt(tab[0])==3 && <PollTabForth {...this.props} {...this.state} user_permission={user_permission} getPollInfo={this.getPollInfo}></PollTabForth>
-            }
-
-          </div>
-        </div>
-      </div>
-    )
-  }
-}
+import React,{ Component } from "react";
+import {Menu} from "antd";
+
+
+import CoursesListType from '../coursesPublic/CoursesListType';
+import { WordsBtn } from 'educoder'
+import PollTabFirst from './PollDetailTabFirst'
+import PollTabSecond from './PollDetailTabSecond'
+import PollTabThird from './PollDetailTabThird'
+import PollTabForth from './PollDetailTabForth'
+
+import DownloadMessage from '../../modals/DownloadMessage';
+
+import ImmediatelyPublish from './pollPublicBtn/ImmediatelyPublish'
+import ImmediatelyEnd from './pollPublicBtn/ImmediatelyEnd'
+import CancelPublish from './pollPublicBtn/CancelPublish'
+
+import '../css/members.css'
+import '../css/busyWork.css'
+
+import axios from 'axios'
+
+const map={1:"未发布",2:"提交中",3:"已截止",4:"已结束"}
+class PollDetailIndex extends Component{
+  constructor(props){
+    super(props);
+    this.state={
+      tab:["0"],
+      pollDetail:undefined,
+      user_permission:undefined
+    }
+  }
+
+  getPollInfo=()=>{
+    console.log(this.props);
+    let pollId=this.props.match.params.pollId;
+    let url=`/polls/${pollId}/common_header.json`
+    axios.get(url).then((result)=>{
+      if(result.status==200){
+        this.setState({
+          pollDetail:result.data,
+          user_permission:result.data.user_permission
+        })
+      }
+    }).catch((error)=>{
+      console.log(error);
+    })
+  }
+
+  componentDidMount(){
+    const query =this.props.location.search;
+    if(query.indexOf("?")!=-1){
+      const type = query.split('?');
+      let name = type[1].split("tab=");
+      name = String(name).split(",");
+       name = decodeURI(name[1]);
+      if(name!=undefined && name!="" && name!="undefined"){
+        this.setState({
+          tab:[name]
+        })
+      }
+    }
+    
+    this.getPollInfo();
+  }
+
+  //切换tab
+  changeTab=(e)=>{
+    this.setState({
+      tab:e.key
+    })
+  }
+
+  confirmysl(url){
+    this.refs.DownloadMessage.confirmysl(url);
+  }
+
+  render(){
+    let {tab,pollDetail,user_permission}=this.state;
+    
+    const isAdmin =this.props.isAdmin();
+    const isStudent = this.props.isStudent();
+    return(
+      <div className="newMain">
+        <DownloadMessage {...this.props} ref="DownloadMessage" />
+        <div className="educontent mt10 mb50">
+          <p className="clearfix mb20">
+            <WordsBtn style="grey" className="fl" to={`/courses/${this.props.match.params.coursesId}/students`}>{this.props.coursedata.name}</WordsBtn>
+            <span className="color-grey-9 fl ml3 mr3">&gt;</span>
+            <WordsBtn style="grey" className="fl" to={`/courses/${this.props.match.params.coursesId}/polls/${user_permission && user_permission.left_banner_id}`}>问卷</WordsBtn>
+            <span className="color-grey-9 fl ml3 mr3">&gt;</span>
+            <span>问卷详情</span>
+          </p>
+          <p className="clearfix mb20 lineh-25">
+            <span className="color-grey-3 font-24 fl task-hide break-word" style={{maxWidth:"900px",lineHeight:"25px"}} title={`${pollDetail && pollDetail.polls_name}`}>{pollDetail && pollDetail.polls_name}</span>
+            <span className="mt3 fl" style={{height:"25px"}}>
+              <CoursesListType typelist={[`${map[pollDetail && pollDetail.polls_status]}`]} typesylename={""} />
+            </span>
+            <WordsBtn className="fr font-16 mt2" style="grey" onClick={()=>this.props.history.goBack()}>返回</WordsBtn>
+          </p>
+          <div>
+            <div className="clearfix edu-back-white pl30 pr30 bor-bottom-greyE">
+              <div className="fl task_menu_ul">
+                <Menu mode="horizontal" selectedKeys={tab} onClick={this.changeTab}>
+                  <Menu.Item key="0">答题列表</Menu.Item>
+                  { 
+                    (isAdmin || (isStudent && pollDetail && pollDetail.show_result == 1 && pollDetail.polls_status == 3 && user_permission && user_permission.current_status==1)) && <Menu.Item key="1">统计结果</Menu.Item>
+                  }
+                  { isAdmin && <Menu.Item key="2">问卷预览</Menu.Item> }
+                  <Menu.Item key="3">设置</Menu.Item>
+                </Menu>
+              </div>
+              {
+                isAdmin && 
+                <span className="fr mt22">
+                  <WordsBtn style="blue" to={`/courses/${this.props.match.params.coursesId}/polls/${this.props.match.params.pollId}/edit`} className="fl mr20 font-16">编辑问卷</WordsBtn>
+                  {/* 立即发布 */}
+                  {
+                    user_permission && user_permission.poll_unpublish_count > 0 ?
+                    <li className="fl mr20">
+                      <ImmediatelyPublish 
+                        {...this.props} 
+                        {...this.state}
+                        style="blue"
+												className={"font-16"}
+                        checkBoxValues={[this.props.match.params.pollId]}
+                        action={this.getPollInfo}
+                        single={true}
+                      ></ImmediatelyPublish>
+                    </li>
+                    :""
+                  }
+                  {/* 立即截止、撤销发布 */}
+                  {
+                    user_permission && user_permission.poll_publish_count > 0 ?
+                    <li className="fl mr20">
+                      <ImmediatelyEnd
+                        {...this.props} 
+                        {...this.state}
+                        style="blue"
+												className={"font-16"}
+                        checkBoxValues={[this.props.match.params.pollId]}
+                        action={this.getPollInfo}
+                        single={true}
+                      ></ImmediatelyEnd>
+                    </li>
+                    :""
+                  }
+                  {/* {
+                    user_permission && user_permission.poll_publish_count>0 ?
+                    <li className="fl mr20">
+                      <CancelPublish
+                        {...this.props} 
+                        {...this.state}
+                        style="blue"
+                        checkBoxValues={[this.props.match.params.pollId]}
+                        action={this.getPollInfo}
+                      ></CancelPublish>
+                    </li>
+                    :""
+                  } */}
+                  <a className="fl color-blue font-16" onClick={()=>this.confirmysl("/polls/"+this.props.match.params.pollId+"/commit_result.xlsx")} href="javascript:void(0);">导出统计</a>
+                </span>
+              }
+              {
+                isStudent && 
+                <span className="fr mt22 font-16">
+                  {
+                    user_permission && user_permission.current_status!=3 ? 
+                    <WordsBtn style="blue" to={`/courses/${this.props.match.params.coursesId}/polls/${this.props.match.params.pollId}/users/${this.props.current_user.login}`}>
+                      { user_permission && user_permission.current_status ==0 ? "继续答题" : user_permission.current_status == 1 ? "查看答题" : "开始答题"  }
+                    </WordsBtn>
+                    :""
+                  }
+                </span>
+              }
+              
+            </div>
+
+            {
+              // 答题列表
+              parseInt(tab[0])==0 && <PollTabFirst {...this.props} {...this.state}></PollTabFirst>
+            }
+            {
+              // 统计结果
+              parseInt(tab[0])==1 && <PollTabSecond {...this.props} {...this.state}></PollTabSecond>
+            }
+
+            {
+              //问卷预览
+              parseInt(tab[0])==2 && <PollTabThird {...this.props} {...this.state}></PollTabThird>
+            }
+            {
+              //设置
+              parseInt(tab[0])==3 && <PollTabForth {...this.props} {...this.state} user_permission={user_permission} getPollInfo={this.getPollInfo}></PollTabForth>
+            }
+
+          </div>
+        </div>
+      </div>
+    )
+  }
+}
 export default PollDetailIndex
\ No newline at end of file
diff --git a/public/react/src/modules/courses/poll/PollListItem.js b/public/react/src/modules/courses/poll/PollListItem.js
index 898b296f0..e456e2ed9 100644
--- a/public/react/src/modules/courses/poll/PollListItem.js
+++ b/public/react/src/modules/courses/poll/PollListItem.js
@@ -1,13 +1,13 @@
 import React,{ Component } from "react";
 import Tooltip from 'material-ui/Tooltip';
-import {Link} from 'react-router-dom'
-import moment from 'moment'
+import {Link} from 'react-router-dom';
+import moment from 'moment';
 import CoursesListType from '../coursesPublic/CoursesListType';
-import { WordsBtn,formatDuring } from 'educoder'
-import '../css/members.css'
-import '../css/busyWork.css'
+import { WordsBtn,formatDuring } from 'educoder';
+import '../css/members.css';
+import '../css/busyWork.css';
 
-const polls_status={1:"未发布",2:"提交中",3:"已截止"}
+const polls_status={1:"未发布",2:"提交中",3:"已截止",4:"已结束"}
 
 
 const dataformat="YYYY-MM-DD HH:mm";
diff --git a/public/react/src/modules/tpm/NewHeader.js b/public/react/src/modules/tpm/NewHeader.js
index 3e2219b40..822d05e09 100644
--- a/public/react/src/modules/tpm/NewHeader.js
+++ b/public/react/src/modules/tpm/NewHeader.js
@@ -674,7 +674,8 @@ submittojoinclass=(value)=>{
 
 							{/*<li className=""><a href={"/libraries"}>教学案例</a></li>*/}
               <li className=""><a href={this.props.Headertop===undefined?"":this.props.Headertop.competitions_url}>在线竞赛</a></li>
-
+							<li className=""><a href={this.props.Headertop===undefined?"":this.props.Headertop.moop_cases_url}>教学案例</a></li>
+							<li className=""><a href={this.props.Headertop===undefined?"":this.props.Headertop.crowdsourcing_url}>众包社区</a></li>
               <li className={`${activeForums === true ? 'active' : ''}`}><a href={this.props.Headertop===undefined?"":this.props.Headertop.topic_url}>交流问答</a></li>
               <li
                 style={{display: this.props.Headertop === undefined ? 'none'  : this.props.Headertop.auth===null? 'none' : 'block'}}