diff --git a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
index 4e3f6a42d..f113209c4 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
@@ -64,6 +64,15 @@ class CoursesBanner extends Component {
       }
 
     }
+	componentDidUpdate = (prevProps) => {
+		if(prevProps.current_user!=this.props.current_user){
+			if(this.props.current_user!==undefined){
+				this.setState({
+					user_phone_binded :this.props.current_user.user_phone_binded,
+				})
+			}
+		}
+	}
 	onloadupdatabanner=()=>{
 		this.updatabanner()
 	}
@@ -344,16 +353,7 @@ class CoursesBanner extends Component {
 
     render() {
         let { Addcoursestypes, coursedata, modalsType, modalsTopval, loadtype,modalsBottomval,antIcon,user_phone_binded} = this.state;
-      try {
-        if(this.props.current_user!==undefined){
-          this.setState({
-            user_phone_binded :this.props.current_user.user_phone_binded,
-          })
-        }
-      }catch (e) {
-        console.log("CoursesBanner 354")
-        console.log(e)
-      }
+
         return (
           <div>
             <Trialapplication  {...this.state} user_phone_binded={user_phone_binded} ></Trialapplication>
diff --git a/public/react/src/modules/courses/members/studentsList.js b/public/react/src/modules/courses/members/studentsList.js
index e75baa3fe..ba29dfccb 100644
--- a/public/react/src/modules/courses/members/studentsList.js
+++ b/public/react/src/modules/courses/members/studentsList.js
@@ -1,5 +1,5 @@
 import React,{ Component } from "react";
-import { Input,Checkbox,Table, Pagination, Modal,Menu ,Spin} from "antd";
+import { Input,Checkbox,Table, Pagination, Modal,Menu ,Spin, Tooltip} from "antd";
 import ClipboardJS from 'clipboard'
 import '../css/Courses.css'
 import '../css/members.css'
@@ -31,14 +31,6 @@ const dataSource = [{
 
 const buildColumns = (that) => {
   const columns=[{
-    title: '',
-    dataIndex: 'check',
-    key: 'check',
-    render: (text, item) => {
-      return <Checkbox value={item.course_member_id}></Checkbox>
-    },
-    width:"5%"
-  },{
     title: '序号',
     dataIndex: 'id',
     key: 'id',
@@ -71,6 +63,19 @@ const buildColumns = (that) => {
     width:"50%",
     className:"color-grey-6"
   }];
+  const isAdmin = that.props.isAdmin()
+  if (isAdmin) {
+    columns.unshift({
+    title: '',
+    dataIndex: 'check',
+    key: 'check',
+    render: (text, item) => {
+      return <Checkbox value={item.course_member_id}></Checkbox>
+    },
+    width:"5%"
+  })
+  }
+
   return columns;
 }
 
@@ -445,7 +450,14 @@ class studentsList extends Component{
                 <span className="color-orange font-16">
                   {invite_code}
                 </span>
-                <i class="iconfont icon-fuzhi font-14 ml10 copybtn" style={{color: '#FF6800', cursor: 'pointer', verticalAlign: 'baseline'}} data-clipboard-text={invite_code} ></i>
+                <Tooltip title={<div>
+                    <div>成员可以通过邀请码主动加入课堂</div>
+                    <div>点击立刻复制邀请码</div>
+                  </div>}>
+                  <span>
+                  <i class="iconfont icon-fuzhi font-14 ml10 copybtn" style={{color: '#FF6800', cursor: 'pointer', verticalAlign: 'baseline'}} data-clipboard-text={invite_code} ></i>
+                  </span>
+                </Tooltip>
               </React.Fragment>  
               }
               
@@ -528,7 +540,7 @@ class studentsList extends Component{
           total_count > 0 ?
           <div className="mt20 edu-back-white padding20">
             <div className="clearfix stu_head" style={{paddingLeft: '15px'}}>
-              <Checkbox className="fl" onChange={this.onCheckAll} checked={checkAllValue} >已选 {checkBoxValues.length} 个</Checkbox>
+              {isAdmin && <Checkbox className="fl" onChange={this.onCheckAll} checked={checkAllValue} >已选 {checkBoxValues.length} 个</Checkbox>}
               <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 && <li className="li_line drop_down">