调整

public/react/src/modules/courses/poll/PollDetailIndex.js

@@ -108,6 +108,16 @@ class PollDetailIndex extends Component{
       DownloadMessageval:undefined
     })
   }
+	goback=()=>{
+
+		let courseId=this.props.match.params.coursesId;
+		if(courseId===undefined){
+			this.props.history.push("/courses");
+		}else{
+			this.props.history.push(this.props.current_user.first_category_url);
+		}
+
+	}
   render(){
     let {tab,pollDetail,user_permission}=this.state;
     
@@ -123,7 +133,7 @@ class PollDetailIndex extends Component{
         />
         <div className="educontent mt10 mb50">
           <p className="clearfix mb20">
-            <WordsBtn style="grey" className="fl" to={`/courses/${this.props.match.params.coursesId}/students`}>{this.props.coursedata.name}</WordsBtn>
+            <a style="grey" className="fl" onClick={()=>this.goback()}>{this.props.coursedata.name}</a>
             <span className="color-grey-9 fl ml3 mr3">&gt;</span>
             <WordsBtn style="grey" className="fl" to={`/courses/${this.props.match.params.coursesId}/polls/${user_permission && user_permission.left_banner_id}`}>问卷</WordsBtn>
             <span className="color-grey-9 fl ml3 mr3">&gt;</span>
@@ -134,7 +144,7 @@ class PollDetailIndex extends Component{
             <span className="mt3 fl" style={{height:"25px"}}>
               <CoursesListType typelist={[`${map[pollDetail && pollDetail.polls_status]}`]} typesylename={""} />
             </span>
-            <WordsBtn className="fr font-16 mt2" style="grey" onClick={()=>this.props.history.goBack()}>返回</WordsBtn>
+            <WordsBtn className="fr font-16 mt2" style="grey" onClick={()=>this.goback()}>返回</WordsBtn>
           </p>
           <div>
             <div className="clearfix edu-back-white pl30 pr30 bor-bottom-greyE">