diff --git a/public/images/course/guide/1-1.png b/public/images/course/guide/1-1.png
new file mode 100644
index 000000000..c59467c5d
Binary files /dev/null and b/public/images/course/guide/1-1.png differ
diff --git a/public/images/course/guide/1-2.png b/public/images/course/guide/1-2.png
new file mode 100644
index 000000000..1a4f26f38
Binary files /dev/null and b/public/images/course/guide/1-2.png differ
diff --git a/public/images/course/guide/1-3.png b/public/images/course/guide/1-3.png
new file mode 100644
index 000000000..f54250747
Binary files /dev/null and b/public/images/course/guide/1-3.png differ
diff --git a/public/images/course/guide/1-4.png b/public/images/course/guide/1-4.png
new file mode 100644
index 000000000..6ecd3bfb7
Binary files /dev/null and b/public/images/course/guide/1-4.png differ
diff --git a/public/images/course/guide/1-5.png b/public/images/course/guide/1-5.png
new file mode 100644
index 000000000..c4205496d
Binary files /dev/null and b/public/images/course/guide/1-5.png differ
diff --git a/public/images/course/guide/1-6.png b/public/images/course/guide/1-6.png
new file mode 100644
index 000000000..5d5f76f7f
Binary files /dev/null and b/public/images/course/guide/1-6.png differ
diff --git a/public/images/course/guide/1-7.png b/public/images/course/guide/1-7.png
new file mode 100644
index 000000000..65cadf0c7
Binary files /dev/null and b/public/images/course/guide/1-7.png differ
diff --git a/public/react/src/modules/comment/Comments.js b/public/react/src/modules/comment/Comments.js
index 42fea091c..20f48cd92 100644
--- a/public/react/src/modules/comment/Comments.js
+++ b/public/react/src/modules/comment/Comments.js
@@ -484,7 +484,7 @@ class Comments extends Component {
 		const goldRewardInputErrorObj = goldRewardInputError ? {'error': 'error'} : {}
 
 		return (
-			<div className="fit -scroll">
+			<div className="fit -scroll" style={{ 'overflow-x': 'hidden'}}>
 				
 						
 						{ usingAntdModal ? <Modals
diff --git a/public/react/src/modules/courses/boards/AddDirModal.js b/public/react/src/modules/courses/boards/AddDirModal.js
new file mode 100644
index 000000000..89ff6dfeb
--- /dev/null
+++ b/public/react/src/modules/courses/boards/AddDirModal.js
@@ -0,0 +1,78 @@
+import React,{ Component } from "react";
+import {Tooltip, Modal, Input } from 'antd'
+import moment from 'moment'
+import { getUrl, WordsBtn } from 'educoder'
+import axios from 'axios'
+class AddDirModal extends Component{
+  constructor(props){
+    super(props);
+    this.state = {
+
+    }
+  }
+  onInput = (e) => {
+    this.setState({
+      inputValue: e.target.value
+    })
+  }
+  open = () => {
+    this.setState({ visible: true, inputValue: '' })
+  }
+  onSave = () => {
+    let coursesId = this.props.match.params.coursesId;
+    const url = `/courses/${coursesId}/boards.json`
+    let { inputValue } = this.state;
+
+    axios.post(url,{
+        name: inputValue
+      }).then((response)=>{
+      if (response.data.status == 0) {
+        this.onCancel()
+        this.props.showNotification('添加成功')
+        this.props.addSuccess && this.props.addSuccess()
+      }
+    }).catch((error)=>{
+      console.log(error)
+    })
+  }
+  onCancel = () => {
+    this.setState({ visible: false, inputValue: '' })
+  }
+  render(){
+    let { inputValue, visible } = this.state;
+    const { title } = this.props;
+    return(
+        <Modal
+             keyboard={false}
+             title={title}
+             visible={visible}
+             className={"Navmodal"}
+             closable={false}
+             footer={null}
+             destroyOnClose={true}
+             centered={true}
+           >
+             <div className="df">
+                <div className={"fl mt5"}>{this.props.label}：</div>
+                <Input placeholder={this.props.inputPlaceholder || '示例：讨论小组A'}
+                    className={"input-flex-35 greyInput fl"}
+                    maxLength="60"
+                    value={inputValue}
+                    onInput={this.onInput}
+                />
+             </div>
+             
+             {/* {this.state.NavmodalValuetype===true?<span className={"color-red"}>
+                 {this.state.NavmodalValues}
+             </span>:""} */}
+
+             {/* this.state.NavmodalValuetype===true?"clearfix mt20 edu-txt-center": */}
+             <div className={"clearfix mt50 edu-txt-center"}>
+               <a  className="task-btn mr30" onClick={this.onCancel}>取消</a>
+               <a className="task-btn task-btn-orange" onClick={this.onSave}>确定</a>
+             </div>
+           </Modal>
+      )
+    }
+}
+export default AddDirModal;
\ No newline at end of file
diff --git a/public/react/src/modules/courses/boards/BoardsNew.js b/public/react/src/modules/courses/boards/BoardsNew.js
index cf530aba5..97d9436a6 100644
--- a/public/react/src/modules/courses/boards/BoardsNew.js
+++ b/public/react/src/modules/courses/boards/BoardsNew.js
@@ -3,13 +3,13 @@ import React,{ Component } from "react";
 import {
   Form, Input, InputNumber, Switch, Radio,
   Slider, Button, Upload, Icon, Rate, Checkbox, message,
-  Row, Col, Select, Modal
+  Row, Col, Select, Modal, Divider
 } from 'antd';
 import TPMMDEditor from '../../tpm/challengesnew/TPMMDEditor';
 import axios from 'axios'
 import './board.css'
 import "../common/formCommon.css"
-
+import AddDirModal from './AddDirModal'
 import { RouteHOC } from './common.js'
 import CBreadcrumb from '../common/CBreadcrumb'
 import {getUploadActionUrl, bytesToSize, uploadNameSizeSeperator, appendFileSizeToUploadFile, appendFileSizeToUploadFileAll} from 'educoder';
@@ -29,14 +29,14 @@ class BoardsNew extends Component{
       boards: []
     }
   }
-  componentDidMount = () => {
-    
-    const topicId = this.props.match.params.topicId
-
+  addSuccess = () => {
+    this.fetchBoards()
+  }
+  fetchBoards = () => {
+    const isEdit = this.isEdit
     const boardId = this.props.match.params.boardId
-    const boardsUrl = `/courses/board_list.json?board_id=${boardId}`
-    const isEdit = !!topicId
 
+    const boardsUrl = `/courses/board_list.json?board_id=${boardId}`
     axios.get(boardsUrl, { })
     .then((response) => {
       if (response.data.status == 0) {
@@ -57,8 +57,17 @@ class BoardsNew extends Component{
     .catch(function (error) {
       console.log(error);
     });
-
+  }
+  componentDidMount = () => {
+    
+    const topicId = this.props.match.params.topicId
+    const isEdit = !!topicId
     this.isEdit = isEdit
+
+    const boardId = this.props.match.params.boardId
+    
+    this.fetchBoards()
+
     if (isEdit) {
       const url = `/messages/${topicId}.json`
       axios.get(url, {
@@ -260,6 +269,12 @@ class BoardsNew extends Component{
 
     return(
         <div className="newMain ">
+          <AddDirModal {...this.props}
+            title="添加目录"
+            label="目录名称"
+            ref="addDirModal"
+            addSuccess={this.addSuccess}
+          ></AddDirModal>
           <style>{`
             .courseForm .ant-form {
             }
@@ -312,7 +327,17 @@ class BoardsNew extends Component{
                   {getFieldDecorator('select_board_id', {
                     // initialValue: '3779',
                   })(
-                    <Select style={{ width: 230 }}>
+                    <Select style={{ width: 230 }}
+                      dropdownRender={menu => (
+                        <div>
+                          {menu}
+                          <Divider style={{ margin: '4px 0' }} />
+                          <div style={{ padding: '8px', cursor: 'pointer' }} onMouseDown={() => this.refs['addDirModal'].open()}>
+                            <Icon type="plus" /> 添加目录
+                          </div>
+                        </div>
+                      )}
+                    >
                       {this.state.boards.map(item => {
                         return (
                           <Option value={item.id}>{item.name}</Option>
diff --git a/public/react/src/modules/courses/busyWork/CommonWorkList.js b/public/react/src/modules/courses/busyWork/CommonWorkList.js
index a9090a02e..246c9d544 100644
--- a/public/react/src/modules/courses/busyWork/CommonWorkList.js
+++ b/public/react/src/modules/courses/busyWork/CommonWorkList.js
@@ -71,9 +71,10 @@ function buildColumns(that, student_works) {
     width: 90,
     dataIndex: 'user_name',
     key: 'user_name',
+    // width: '110px',
     render: (text, record) => (
       <div style={{
-					width: '110px',
+					
 					overflow: 'hidden',
 					textOverflow: 'ellipsis',
 					whiteSpace: 'nowrap'
diff --git a/public/react/src/modules/courses/common/comments/CommonReply.js b/public/react/src/modules/courses/common/comments/CommonReply.js
index ff63c4b70..739e62c97 100644
--- a/public/react/src/modules/courses/common/comments/CommonReply.js
+++ b/public/react/src/modules/courses/common/comments/CommonReply.js
@@ -241,16 +241,18 @@ class CommonReply extends Component{
           .course-message .commentInput {
             padding-bottom: 56px !important;
           }
-          .course-message  .commentInput.mockInputWrapper {
-            padding-bottom: 30px !important;
+          .course-message .commentInput.mockInputWrapper {
+            padding-bottom: 20px !important;
           } 
           .course-message .memoReplies {
-             border-top: 1px solid #EDEDED;
+            /* border-top: 1px solid #EDEDED;  */
+            padding-bottom: 30px;
           }
         `}</style>
         <MemoDetailMDEditor ref="editor" memo={memo} usingMockInput={true} placeholder="说点什么" 
             height={160} showError={true}
             replyComment={this.replyComment}
+            commentsLength={comments ? comments.length : 0}
         ></MemoDetailMDEditor>
         {/* bor-bottom-greyE */}
         <div className="padding40  memoReplies commentsDelegateParent"
diff --git a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
index 3a1ab9331..363a83187 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
@@ -7,6 +7,7 @@ import CoursesListType from '../coursesPublic/CoursesListType';
 import Addcourses from '../coursesPublic/Addcourses';
 import '../css/Courses.css';
 import Modals from "../../modals/Modals";
+import Guide from './CoursesGuide';
 import AddStudentModal from '../members/modal/AddStudentModal'
 import AddTeacherModal from '../members/modal/AddTeacherModal'
 
@@ -43,6 +44,7 @@ class CoursesBanner extends Component {
             modalsBottomval: "",
             antIcon:false,
             coursedata:undefined,
+            is_guide:false
         }
     }
     componentDidMount() {
@@ -323,13 +325,15 @@ class CoursesBanner extends Component {
   postsettings=()=>{
     window.location.href = "/courses/" + this.props.match.params.coursesId + "/settings";
   }
-
     render() {
-        let { Addcoursestypes, coursedata, modalsType, modalsTopval, loadtype,modalsBottomval,antIcon} = this.state;
+        let { Addcoursestypes, coursedata, modalsType, modalsTopval, loadtype,modalsBottomval,antIcon,is_guide} = this.state;
 
         return (
           <div>
-
+            {
+              is_guide && <Guide></Guide>
+            }
+            
             {
               coursedata === undefined || coursedata.status===401? <div id="course_info_1309" className="courseHead" style={{height: '206px'}}></div>:<div id="course_info_1309" className="courseHead" style={{height: '206px'}}>
 
diff --git a/public/react/src/modules/courses/coursesDetail/CoursesGuide.js b/public/react/src/modules/courses/coursesDetail/CoursesGuide.js
new file mode 100644
index 000000000..b47998d9d
--- /dev/null
+++ b/public/react/src/modules/courses/coursesDetail/CoursesGuide.js
@@ -0,0 +1,44 @@
+import React, {Component} from 'react';
+import '../css/Courses.css';
+import {setImagesUrl} from 'educoder';
+
+
+class CoursesGuide extends Component {
+  constructor(props) {
+    super(props)
+    this.state={
+      step:1
+    }
+  }
+  render(){
+    let {step} = this.state;
+    return(
+      <div className="guidePanel">
+        <style>{`
+          body{
+            overflow:hidden!important;
+          }
+        `}</style>
+        <div className="educontent">
+          {
+            step ==1 &&
+            <div>
+              <p className="clearfix"><img className="fr" src="/images/course/guide/1-1.png" width="175px" style={{margin:"205px 38px 0px 0px"}}/></p>
+              <p className="clearfix pr"><img src="/images/course/guide/1-2.png" className="fr mt20 guideFirstRight"/></p>
+              <p className="clearfix pr" style={{marginTop:"80px"}}>
+                <img src="/images/course/guide/1-4.png" className="fl guideFirstLeft"/>
+                <img src="/images/course/guide/1-3.png" className="fl" style={{marginLeft:"410px"}}/>
+              </p>
+              <p className="clearfix">
+                <img src="/images/course/guide/1-5.png" className="fl mt50"/>
+                <img src="/images/course/guide/1-6.png" className="fl mt40"/>
+                <a href="javascript:void(0)"><img src="/images/course/guide/1-7.png" className="fl mt80 ml100"/></a>
+              </p>
+            </div>
+          }
+        </div>
+      </div>
+    )
+  }
+}
+export default CoursesGuide;
\ No newline at end of file
diff --git a/public/react/src/modules/courses/css/Courses.css b/public/react/src/modules/courses/css/Courses.css
index eca0c53d5..f79800f28 100644
--- a/public/react/src/modules/courses/css/Courses.css
+++ b/public/react/src/modules/courses/css/Courses.css
@@ -1520,3 +1520,23 @@ input.ant-input-number-input:focus {
     border-bottom: 1px solid transparent !important;
 }
 
+
+/* 指引 */
+.guidePanel{
+    position: fixed;
+    top:0px;
+    left: 0px;
+    width: 100%;
+    height: 100%;
+    background: rgba(0,0,0,0.7);
+    z-index: 10000;
+}
+.guideFirstRight{
+    position: absolute;
+    right: -90px;
+}
+.guideFirstLeft{
+    position: absolute;
+    left: -95px;
+    top:120px;
+}
diff --git a/public/react/src/modules/courses/exercise/new/SingleEditor.js b/public/react/src/modules/courses/exercise/new/SingleEditor.js
index a09cc866c..02efe2443 100644
--- a/public/react/src/modules/courses/exercise/new/SingleEditor.js
+++ b/public/react/src/modules/courses/exercise/new/SingleEditor.js
@@ -98,7 +98,7 @@ class SingleEditor extends Component{
       }
     }
     if(!answerArray || answerArray.length == 0) {
-      this.props.showNotification('请先点击本选择题的正确选项'); return;
+      this.props.showNotification('请先点击选择本选择题的正确选项'); return;
     }
     if(!question_title) {
       this.props.showNotification('请先输入题目题干'); return;
diff --git a/public/react/src/modules/courses/graduation/tasks/GraduateTaskItem.js b/public/react/src/modules/courses/graduation/tasks/GraduateTaskItem.js
index b2a28110d..419f26315 100644
--- a/public/react/src/modules/courses/graduation/tasks/GraduateTaskItem.js
+++ b/public/react/src/modules/courses/graduation/tasks/GraduateTaskItem.js
@@ -224,11 +224,11 @@ class GraduateTaskItem extends Component{
               <span className="mr50">
                 {/* <a href="/users/innov" className="panel-name-small hide fl mr15 mr30 color-grey3">{discussMessage.author.name}</a> */}
 
-								{discussMessage.commit_count===undefined?"":<span className="mr15 color-grey9">{discussMessage.commit_count} 已交</span>}
-								{discussMessage.uncommit_count===undefined?"":<span className="mr15 color-grey9">{discussMessage.uncommit_count} 未交</span>}
+								{discussMessage.commit_count===undefined?"":<span className="mr15 color-grey9 font-14">{discussMessage.commit_count} 已交</span>}
+								{discussMessage.uncommit_count===undefined?"":<span className="mr15 color-grey9 font-14">{discussMessage.uncommit_count} 未交</span>}
                 {/*<span className="mr15 color-grey9">{discussMessage.replies_count} 3 未评</span>*/}
                 <Tooltip title={discussMessage.task_status===1?"提交剩余时间":discussMessage.task_status===2?"补交剩余时间":""} placement="bottom">
-                    <span className="mr15 color-grey9">{discussMessage.status_time}</span>
+                    <span className="mr15 color-grey9 font-14">{discussMessage.status_time}</span>
                 </Tooltip>
 
                 {/* { discussMessage.replies_count != 0 && <span className="mr15 color-grey9">{discussMessage.replies_count} 回复</span> }
diff --git a/public/react/src/modules/courses/members/teacherList.js b/public/react/src/modules/courses/members/teacherList.js
index 15afd4bee..19bb74d44 100644
--- a/public/react/src/modules/courses/members/teacherList.js
+++ b/public/react/src/modules/courses/members/teacherList.js
@@ -33,6 +33,7 @@ function buildColumns(that) {
   const { course_groups } = that.state
   const columns = [{
     title: '序号',
+    width: 28,
     // dataIndex: 'name',
     key: 'index',
     render: (content, item, index) => {
@@ -40,12 +41,13 @@ function buildColumns(that) {
     }
   },{
     title: '用户ID',
+    width: 82,
     dataIndex: 'login',
     key: 'login'
   }, {
     title: '姓名',
     dataIndex: 'name',
-    width: 160,
+    width: 140,
     key: 'name',
     render: (name, record) => {
       return <a href={`/login/${record.login}`} target="_blank">{name}</a>
@@ -57,7 +59,7 @@ function buildColumns(that) {
   }] 
   that.state.course_groups && that.state.course_groups.length && columns.push({
     title: <Tooltip title="仅能批阅指定分班的作品">管理权限</Tooltip>,
-    width: 230,
+    // width: 230,
     key: 'course_groups',
     dataIndex: 'course_groups',
     // onClick={() => that.joinCourseGroup(item.id)}
@@ -113,6 +115,7 @@ function buildColumns(that) {
   if (hasGraduationModule) {
     columns.push({
       title: '答辩组',
+      width: 74,
       key: 'graduation_group',
       dataIndex: 'graduation_group',
       render: text => (
@@ -126,6 +129,7 @@ function buildColumns(that) {
     columns.push({
       title: '操作',
       key: 'action',
+      width: 150,
       align:'center',
       render: (text, record) => {
         if (record.application_id) {
diff --git a/public/react/src/modules/forums/MemoDetailMDEditor.js b/public/react/src/modules/forums/MemoDetailMDEditor.js
index e1811ed8a..6fd650cea 100644
--- a/public/react/src/modules/forums/MemoDetailMDEditor.js
+++ b/public/react/src/modules/forums/MemoDetailMDEditor.js
@@ -148,13 +148,13 @@ class MemoDetailMDEditor extends Component {
 							margin-right: 0px !important;
 						}
 						.commentInput {
-							border-bottom: 1px solid #EEEEEE;
 						}
 						.commentInput .editormd{
 							width:100%!important;
 						}
 					`}</style>
-					<div style={{ display: isInited ? 'none' : ''}} className="mockInputWrapper commentInput" >
+					<div style={{ display: isInited ? 'none' : '', borderBottom: `${this.props.commentsLength == 0 ? 'none' : '1px solid #EEEEEE'}`}} 
+								className="mockInputWrapper commentInput" >
 						<input onClick={this.onMockInputClick} placeholder={placeholder || '我要回复'}></input>
 						<a href="javascript:void(0)" 
 								onClick={this.onMockInputClick}	className="commentsbtn task-btn task-btn-blue">
diff --git a/public/react/src/modules/tpm/challengesnew/TPMMDEditor.js b/public/react/src/modules/tpm/challengesnew/TPMMDEditor.js
index 4af26d698..e86923cbc 100644
--- a/public/react/src/modules/tpm/challengesnew/TPMMDEditor.js
+++ b/public/react/src/modules/tpm/challengesnew/TPMMDEditor.js
@@ -7,6 +7,7 @@ import {BrowserRouter as Router, Route, Link, Switch} from "react-router-dom";
 // import "antd/dist/antd.css";
 
 import { getImageUrl, toPath, getUrl } from 'educoder';
+import '../../courses/css/Courses.css'
 
 import axios from 'axios';