diff --git a/app/controllers/graduation_topics_controller.rb b/app/controllers/graduation_topics_controller.rb
index de707d7c7..203f18b35 100644
--- a/app/controllers/graduation_topics_controller.rb
+++ b/app/controllers/graduation_topics_controller.rb
@@ -170,11 +170,12 @@ class GraduationTopicsController < ApplicationController
       teacher_group = @course.teacher_course_groups.where(:user_id => @graduation_topic.tea_id, :id => params[:group_id]).first
       unless teacher_group.present?
         member = @course.course_members.where(:user_id => @graduation_topic.tea_id).first
-        tip_exception("分班名称不能为空") if params[:course_group_name].blank?
-        course_group = CourseGroup.find_or_create_by!(:name => params[:course_group_name], :course_id => @course.id)
-        teacher_group = TeacherCourseGroup.find_or_create_by!(:course_id => @course.id, :course_member_id => member.try(:id),
-                                                  :user_id => @graduation_topic.tea_id,
-                                                  :course_group_id => course_group.try(:id))
+        if params[:course_group_name].present?
+          course_group = CourseGroup.find_or_create_by!(:name => params[:course_group_name], :course_id => @course.id)
+          teacher_group = TeacherCourseGroup.find_or_create_by!(:course_id => @course.id, :course_member_id => member.try(:id),
+                                                                :user_id => @graduation_topic.tea_id,
+                                                                :course_group_id => course_group.try(:id))
+        end
       end
       student_member = @course.course_members.where(:user_id => student_graduation_topic.user_id).first
       student_member.update_attributes(:course_group_id => teacher_group.course_group_id) if student_member.present?
diff --git a/public/react/src/modules/courses/graduation/topics/GraduateTopicDetailTable.js b/public/react/src/modules/courses/graduation/topics/GraduateTopicDetailTable.js
index eae3fb43d..b0c65009d 100644
--- a/public/react/src/modules/courses/graduation/topics/GraduateTopicDetailTable.js
+++ b/public/react/src/modules/courses/graduation/topics/GraduateTopicDetailTable.js
@@ -79,16 +79,15 @@ class GraduateTopicDetailTable extends Component{
     })
   }
   sureAgreeTopic=(count)=>{
-    if(count > 0){
-      let{tableData}=this.props;
-      let{operationId,classesId}=this.state
-      let courseId=this.props.match.params.course_id;
+    let{tableData}=this.props;
+    let{operationId,classesId}=this.state
+    let courseId=this.props.match.params.course_id;
+
+    if(classesId!=undefined){
       let name=tableData.group_list.filter(item=>item.group_id==classesId)[0].group_name;
       this.agreeChoose(courseId,operationId,classesId,name);
     }else{
-      this.setState({
-        un_choose_notice:"请先添加分班"
-      })
+      this.agreeChoose(courseId,operationId,classesId);
     }
   }
 
@@ -205,7 +204,7 @@ class GraduateTopicDetailTable extends Component{
         >
           <div className="newupload_conbox">
             <p className="color-grey-9 mb15 edu-txt-center">确认同意学生的选题，将学生加入我的分班</p>
-            <div className="df">
+            { tableData.group_list && tableData.group_list.length===0?"":<div className="df">
               <span className="lineh-40 mr10">选择：</span>
               <div className="flex1">
                 <Select placeholder="请选择分班" style={{"width":"100%"}} value={classesId} onChange={this.changeClasses}>
@@ -220,7 +219,7 @@ class GraduateTopicDetailTable extends Component{
                 </Select>
                 <p style={{height:"20px",lineHeight:"20px"}}><span className="color-orange-tip">{un_choose_notice}</span></p>
               </div>
-            </div>
+            </div>}
             <div className="mt20 clearfix edu-txt-center">
               <a onClick={this.hideAgreeTopic} className="pop_close task-btn mr30">取消</a>
               <a className="task-btn task-btn-orange" onClick={()=>this.sureAgreeTopic(tableData.group_list.length)}>确定</a>
diff --git a/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js b/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
index fee00d4eb..879508ea1 100644
--- a/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
+++ b/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
@@ -363,7 +363,7 @@ class Listofworksstudentone extends Component {
 					),
 				},
 				{
-					title: '截止前完成关卡',
+					title: '结束前完成关卡',
 					dataIndex: 'completion',
 					key: 'completion',
 					align: "center",
@@ -757,7 +757,7 @@ class Listofworksstudentone extends Component {
 					),
 				},
 				{
-					title: '截止前完成关卡',
+					title: '结束前完成关卡',
 					dataIndex: 'completion',
 					key: 'completion',
 					align: "center",
@@ -1110,7 +1110,7 @@ class Listofworksstudentone extends Component {
 					),
 				},
 				{
-					title: '截止前完成关卡',
+					title: '结束前完成关卡',
 					dataIndex: 'completion',
 					key: 'completion',
 					align: 'center',
@@ -1473,7 +1473,7 @@ class Listofworksstudentone extends Component {
 					),
 				},
 				{
-					title: '截止前完成关卡',
+					title: '结束前完成关卡',
 					dataIndex: 'completion',
 					key: 'completion',
 					align: 'center',
diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
index 221f90764..de906ad43 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
@@ -278,7 +278,7 @@ class Challengesjupyter extends Component {
 						this.setState({
 							showtime:false
 						})
-					}, 500)
+					}, 800)
 
 				}else{
 					this.setState({
@@ -292,7 +292,7 @@ class Challengesjupyter extends Component {
 			})
 			this.props.showNotification('实训保存失败!');
 		})
-		}, 500)
+		}, 800)
 	}