diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 88ed373d9..1039a648a 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -27,6 +27,12 @@ module ApplicationHelper
     sanitize content, tags: tags, attributes: attributes
   end
 
+  # MD5加密
+  def base64_encode(content)
+    return nil if content.blank?
+    Base64.encode64(content)
+  end
+
   def graduation_navigation graduation
     graduation.class.to_s == "GraduationTopic" ? "毕设选题" : "毕设任务"
   end
diff --git a/app/views/homework_commons/publish_groups.json.jbuilder b/app/views/homework_commons/publish_groups.json.jbuilder
index b77d14fe7..b0ba5b2d3 100644
--- a/app/views/homework_commons/publish_groups.json.jbuilder
+++ b/app/views/homework_commons/publish_groups.json.jbuilder
@@ -1,7 +1,7 @@
 json.course_groups @course_groups do |group|
   json.id group.id
   json.name group.name
-  json.end_time @group_settings.select{|group_setting| group_setting.course_group_id == group.id}.first&.end_time
+  json.end_time @homework.unified_setting ? @homework.end_time : @group_settings.select{|group_setting| group_setting.course_group_id == group.id}.first&.end_time
 end
 json.end_time @homework.end_time
 json.late_time @homework.late_time
\ No newline at end of file
diff --git a/app/views/users/videos/_video.json.jbuilder b/app/views/users/videos/_video.json.jbuilder
index 5b0bc7a6e..ac030ce12 100644
--- a/app/views/users/videos/_video.json.jbuilder
+++ b/app/views/users/videos/_video.json.jbuilder
@@ -1,4 +1,6 @@
 json.extract! video, :id, :title, :cover_url, :file_url, :play_url, :vv, :user_id, :transcoded
+json.play_url base64_encode(video.play_url)
+json.file_url base64_encode(video.file_url)
 json.play_duration video.video_play_duration
 json.published_at video.display_published_at
 json.created_at video.display_created_at
diff --git a/public/react/src/modules/courses/Resource/index.js b/public/react/src/modules/courses/Resource/index.js
index 4f12bce66..c96ba7abd 100644
--- a/public/react/src/modules/courses/Resource/index.js
+++ b/public/react/src/modules/courses/Resource/index.js
@@ -1011,7 +1011,7 @@ class Fileslists extends Component{
                     :"":""}
 
                   {this.props.isAdmin()?<li className="li_line drop_down">
-                    移动到...<i className="iconfont icon-xiajiantou font-12 ml2"></i>
+                    移动到目录<i className="iconfont icon-xiajiantou font-12 ml2"></i>
 
                     <style>
                       { `
diff --git a/public/react/src/modules/courses/boards/index.js b/public/react/src/modules/courses/boards/index.js
index 421faf93b..d30cf6223 100644
--- a/public/react/src/modules/courses/boards/index.js
+++ b/public/react/src/modules/courses/boards/index.js
@@ -387,7 +387,7 @@ class Boards extends Component{
                 { coursedata && !!coursedata.course_public && <li className="li_line"><a href="javascript:void(0)" className="color-grey-9" onClick={this.onSetToOpen}>设为公开</a></li> }
 
                 <li className="li_line drop_down">
-                  移动到...<i className="iconfont icon-xiajiantou font-12 ml2"></i>
+                  移动到目录<i className="iconfont icon-xiajiantou font-12 ml2"></i>
                   <ul className="drop_down_menu"
                       style={{"right":"0px","left":"unset", maxHeight: '318px', overflowY: 'auto',  minWidth: '200px'}}>
                     { boards && boards.length > 10 && <p className="drop_down_search">
diff --git a/public/react/src/modules/courses/busyWork/CommonWorkList.js b/public/react/src/modules/courses/busyWork/CommonWorkList.js
index e45d016bb..1b3812724 100644
--- a/public/react/src/modules/courses/busyWork/CommonWorkList.js
+++ b/public/react/src/modules/courses/busyWork/CommonWorkList.js
@@ -442,16 +442,17 @@ class CommonWorkList extends Component{
     if (val === ""||val===undefined) {
       this.setState({
         search: undefined,
-        searchtypes:false
+        searchtypes:false,
+        page:1
       })
     }else{
       this.setState({
         searchtypes:true,
-        loadingstate:true
+        loadingstate:true,
+        page:1
       })
     }
-
-    this.fetchList()
+    this.fetchList(1)
   }
   onSearchValueInput = (e) => {
     if (e.target.value === ""||e.target.value===undefined) {
@@ -482,8 +483,9 @@ class CommonWorkList extends Component{
     this.fetchList()
   }
 
-	_getRequestParams() {
-		const {search, arg_work_status, arg_teacher_comment, arg_course_group, order, page, arg_member_work, b_order} = this.state
+	_getRequestParams(pages) {
+		let {search, arg_work_status, arg_teacher_comment, arg_course_group, order, page, arg_member_work, b_order} = this.state
+    page=pages?pages:page
     return {
       page,
       search,
@@ -500,7 +502,7 @@ class CommonWorkList extends Component{
   fetchData = () => {
     this.fetchList()
   }
-  fetchList = () => {
+  fetchList = (page) => {
 			if(this.state.comwbool===true){
 				console.log('arg_course_group2');
 				console.log(this.state.arg_course_group);
@@ -515,7 +517,7 @@ class CommonWorkList extends Component{
     let courseId=this.props.match.params.coursesId;
 
     const url = `/homework_commons/${workId}/works_list.json`
-    let params = this._getRequestParams()
+    let params = this._getRequestParams(page)
     axios.post(url, params).then((response)=> {
       if (response.data) {
         this.setState({
diff --git a/public/react/src/modules/courses/busyWork/commonWork.js b/public/react/src/modules/courses/busyWork/commonWork.js
index aa3ab2310..b76d76b95 100644
--- a/public/react/src/modules/courses/busyWork/commonWork.js
+++ b/public/react/src/modules/courses/busyWork/commonWork.js
@@ -582,7 +582,7 @@ class commonWork extends Component{
                   onClick={this.addToBank}
                 >加入题库</a></li>:""}
                 <li className="li_line drop_down">
-                  移动到...<i className="iconfont icon-xiajiantou font-12 ml2"></i>
+                  移动到目录<i className="iconfont icon-xiajiantou font-12 ml2"></i>
                   <ul className="drop_down_menu"
                       style={{"right":"0px","left":"unset", maxHeight: '318px', overflowY: 'auto',  minWidth: '200px'}}>
                     { course_module && course_module.length > 10 && <p className="drop_down_search">
diff --git a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
index 2bf7fb988..afd62118e 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
@@ -601,7 +601,7 @@ class CoursesBanner extends Component {
 
 
                   </div>
-               
+
 
                   <div className="clearfix ">
                     <div className="fl fl mr40 mb20" >
@@ -665,6 +665,10 @@ class CoursesBanner extends Component {
 
                     {/*}*/}
                     <div>
+                      {this.props.isStudent()?this.props.current_user&&this.props.current_user.course_is_end===true?"":<a className="fr user_default_btn user_blue_btn mr20 font-18"
+                                                                                                                          onClick={() => this.exitclass()}
+                      > 永久退出课堂 </a>:""}
+
                       {coursedata.switch_to_student === true ?
                         <Tooltip placement="bottom" title={
 													<pre>由教师/助教身份切换至学生<br/>可进行提交作品、答题等操作</pre>
@@ -723,9 +727,7 @@ class CoursesBanner extends Component {
                         )
                         : ""}
 
-                      {this.props.isStudent()?this.props.current_user&&this.props.current_user.course_is_end===true?"":<a className="fr user_default_btn user_blue_btn mr20 font-18"
-                                                 onClick={() => this.exitclass()}
-                      > 永久退出课堂 </a>:""}
+
 
                     </div>
 
diff --git a/public/react/src/modules/courses/coursesPublic/OneSelfOrderModal.js b/public/react/src/modules/courses/coursesPublic/OneSelfOrderModal.js
index c51b9a813..9c57cc88c 100644
--- a/public/react/src/modules/courses/coursesPublic/OneSelfOrderModal.js
+++ b/public/react/src/modules/courses/coursesPublic/OneSelfOrderModal.js
@@ -49,14 +49,20 @@ class OneSelfOrderModal extends Component{
 						let arr = this.props.course_groups.map(item => item.id);
 						let newarr = [];
 						let course_groups = this.props.course_groups;
+
 						course_groups.map((item, key) => {
+
 							if (item.end_time === null) {
 								// if(this.props.starttimesend===undefined){
 								// 	item.end_time = moment(moment(handleDateString(this.props.staytime)).add(1, 'week')).format("YYYY-MM-DD HH:mm");
 								// }else{
 								// 	item.end_time = moment(handleDateString(this.props.starttimesend)).format("YYYY-MM-DD HH:mm");
 								// }
-								item.end_time = moment(moment(handleDateString(this.props.staytime)).add(1, 'week')).format("YYYY-MM-DD HH:mm");
+								if(this.props.starttimesend){
+									item.end_time = moment(moment(handleDateString(this.props.starttimesend))).format("YYYY-MM-DD HH:mm");
+								}else{
+									item.end_time = moment(moment(handleDateString(this.props.staytime)).add(1, 'week')).format("YYYY-MM-DD HH:mm");
+								}
 								newarr.push(item)
 							} else {
 								newarr.push(item)
@@ -101,7 +107,12 @@ class OneSelfOrderModal extends Component{
 						let course_groups=this.props.course_groups;
 						course_groups.map((item,key)=>{
 							if(item.end_time===null){
-								item.end_time = moment(moment(handleDateString(this.props.staytime)).add(1, 'week')).format("YYYY-MM-DD HH:mm");
+								// item.end_time = moment(moment(handleDateString(this.props.staytime)).add(1, 'week')).format("YYYY-MM-DD HH:mm");
+								if(this.props.starttimesend){
+									item.end_time = moment(moment(handleDateString(this.props.starttimesend))).format("YYYY-MM-DD HH:mm");
+								}else{
+									item.end_time = moment(moment(handleDateString(this.props.staytime)).add(1, 'week')).format("YYYY-MM-DD HH:mm");
+								}
 								newarr.push(item)
 							}else{
 								newarr.push(item)
diff --git a/public/react/src/modules/courses/members/studentsList.js b/public/react/src/modules/courses/members/studentsList.js
index 76c113891..6c1877926 100644
--- a/public/react/src/modules/courses/members/studentsList.js
+++ b/public/react/src/modules/courses/members/studentsList.js
@@ -860,7 +860,7 @@ class studentsList extends Component{
               <div className="studentList_operation_ul">
                 {/* {isAdmin && <li className="li_line"><a href="javascript:void(0)" className="color-grey-9" onClick={this.onDelete}>删除</a></li>} */}
                 {isAdmin && !isStudentPage && <li className="drop_down">
-                  移动到...<i className="iconfont icon-xiajiantou font-12 ml2"></i>
+                  移动到目录<i className="iconfont icon-xiajiantou font-12 ml2"></i>
                   <ul className="drop_down_menu" style={{"right":"0px","left":"unset", width: '200px', maxHeight: '324px', overflowY: 'auto'}}>
                     {
                       course_groups && course_groups.length > 9 ?
diff --git a/public/react/src/modules/courses/poll/PollDetailTabFirst.js b/public/react/src/modules/courses/poll/PollDetailTabFirst.js
index 2da0924ed..4f625b856 100644
--- a/public/react/src/modules/courses/poll/PollDetailTabFirst.js
+++ b/public/react/src/modules/courses/poll/PollDetailTabFirst.js
@@ -60,8 +60,11 @@ class PollDetailTabFirst extends Component{
     })
   }
   searchInfo=()=>{
-		let {order, search, commit_status, poll_group_id, page, order_type} = this.state
-		this.getTableList(order, search, commit_status, poll_group_id, page, order_type);
+		let {order, search, commit_status, poll_group_id, page, order_type} = this.state;
+		this.setState({
+      page:1
+    })
+		this.getTableList(order, search, commit_status, poll_group_id, 1, order_type);
   }
 
   // 获取接口数据
diff --git a/public/react/src/modules/courses/shixunHomework/shixunHomework.js b/public/react/src/modules/courses/shixunHomework/shixunHomework.js
index f9d059669..f58cdfee8 100644
--- a/public/react/src/modules/courses/shixunHomework/shixunHomework.js
+++ b/public/react/src/modules/courses/shixunHomework/shixunHomework.js
@@ -1256,7 +1256,7 @@ class ShixunHomework extends Component{
                 </li>
                 <li className="li_line drop_down"  onMouseEnter={this.updadatalist}>
                   {/*onClick={()=>this.selectBlank(4)}*/}
-                  移动到...<i className="iconfont icon-xiajiantou font-12 ml2"></i>
+                  移动到目录<i className="iconfont icon-xiajiantou font-12 ml2"></i>
                 <ul className="drop_down_menu"  style={{"right":"0px","left":"unset", maxHeight: '318px', overflowY: 'auto',  minWidth: '200px'}}>
                   { course_modules&&course_modules.homework_category.length > 10 && <p className="drop_down_search">
                     <Input placeholder="搜索" value={this.state.dirSearchValue} onChange={(e) => {this.setState({dirSearchValue: e.target.value})}}/>
diff --git a/public/react/src/modules/paths/ShixunPathCard.js b/public/react/src/modules/paths/ShixunPathCard.js
index 66f236692..5afceaf30 100644
--- a/public/react/src/modules/paths/ShixunPathCard.js
+++ b/public/react/src/modules/paths/ShixunPathCard.js
@@ -43,7 +43,7 @@ class ShixunPathCard extends Component{
                         <p className="font-14 color-white">非试用内容，需要授权</p>
                       </div> */}
 
-                      <Link to={"/paths/"+item.id} className="squareImg" >
+                      <Link to={"/paths/"+item.id} className="squareImg"  target="_blank">
 												{/*target="_blank"*/}
                         <img alt="详情图片" src={setImagesUrl(item.image_url)}/>
                       </Link>
@@ -80,7 +80,7 @@ class ShixunPathCard extends Component{
             </div>
           )
         }
-        
+
       </div>
     )
   }
diff --git a/public/react/src/modules/paths/statics/index.js b/public/react/src/modules/paths/statics/index.js
index 5988f113d..55e391478 100644
--- a/public/react/src/modules/paths/statics/index.js
+++ b/public/react/src/modules/paths/statics/index.js
@@ -212,8 +212,8 @@ const App = (props) => {
       sorter: (a, b) => a.cost_time - b.cost_time
     }
   ];
-  
- 
+
+
   useEffect(() => {
     changeParams({
       page: 1,
@@ -307,7 +307,7 @@ const App = (props) => {
                   fetchData={handleFetchData}
                 />
               </TabPane>
-              <TabPane tab="实际使用情况" key="2">
+              <TabPane tab="实训使用情况" key="2">
                 <DisplayTableData
                   columns={sxColumns}
                   datas={other_info}
@@ -315,7 +315,7 @@ const App = (props) => {
                   fetchData={handleFetchData}
                 />
               </TabPane>
-              <TabPane tab="学习情况" key="3">
+              <TabPane tab="学员学习情况" key="3">
                 <DisplayTableData
                   columns={stColumns}
                   datas={other_info}
@@ -339,7 +339,7 @@ const mapStateToProps = (state) => {
     other_info,
     total,
   }
-  
+
 };
 
 const mapDispatchToProps = (dispatch) => ({