diff --git a/public/react/config/webpack.config.dev.js b/public/react/config/webpack.config.dev.js
index 15e7e6bef..81afdb70b 100644
--- a/public/react/config/webpack.config.dev.js
+++ b/public/react/config/webpack.config.dev.js
@@ -29,7 +29,7 @@ const env = getClientEnvironment(publicUrl);
 module.exports = {
   // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
   // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.s
-	devtool: "source-map",  // 开启调试
+	devtool: "cheap-module-eval-source-map",  // 开启调试
   // These are the "entry points" to our application.
   // This means they will be the "root" imports that are included in JS bundle.
   // The first two entry points enable "hot" CSS and auto-refreshes for JS.
diff --git a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
index 7e3b2e0e4..c6c3ff93c 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesBanner.js
@@ -2,7 +2,7 @@ import React, {Component} from 'react';
 import {Link} from "react-router-dom";
 import axios from 'axios';
 import {getImageUrl, trigger, on, off} from 'educoder';
-import { Tooltip, message,Popover} from 'antd';
+import { Tooltip, message,Popover,Breadcrumb} from 'antd';
 import CoursesListType from '../coursesPublic/CoursesListType';
 import AccountProfile from"../../user/AccountProfile";
 import Addcourses from '../coursesPublic/Addcourses';
@@ -489,23 +489,42 @@ class CoursesBanner extends Component {
 
                     <div className="clearfix clearfixborder">
                       <ul className="fl color-grey-eb pathInfo pathInfobox mt10">
-                        <li className={"mt7 teachersbox"}  >
-                          <Link to={"/courses/"+this.props.match.params.coursesId+"/teachers"}>
-                            <span className="color-grey-c fl font-16">教师</span>
-                            <span
-                              className="color-white fl font-16 bannerurli">{coursedata.teacher_count}</span>
-                          </Link>
-                        </li>
+												<style>
+													{`
+														.ant-breadcrumb-separator{
+														      color: rgba(255,255,255,0.3) !important;
+														}
+													`}
+												</style>
+												<Breadcrumb separator="|">
+													<Breadcrumb.Item href={"/courses/"+this.props.match.params.coursesId+"/teachers"}>
+														<span className="color-grey-c font-16">教师  {coursedata.teacher_count}</span>
+													</Breadcrumb.Item>
+													<Breadcrumb.Item href={"/courses/"+this.props.match.params.coursesId+"/students"}>
+														<span className="color-grey-c font-16">学生  {coursedata.student_count}</span>
+													</Breadcrumb.Item>
+													<Breadcrumb.Item>{coursedata.credit===null?"":
+														<span className="color-grey-c font-16">学分 {coursedata.credit}</span>
+													}</Breadcrumb.Item>
+												</Breadcrumb>
+
+                        {/*<li className={"mt7 teachersbox"}  >*/}
+                          {/*<Link to={"/courses/"+this.props.match.params.coursesId+"/teachers"}>*/}
+                            {/*<span className="color-grey-c fl font-16">教师</span>*/}
+                            {/*<span*/}
+                              {/*className="color-white fl font-16 bannerurli">{coursedata.teacher_count}</span>*/}
+                          {/*</Link>*/}
+                        {/*</li>*/}
 
-                        <li className={"mt7"}>
-                          <Link to={"/courses/"+this.props.match.params.coursesId+"/students"}>
-                            <span className="color-grey-c fl font-16">学生</span>
-                            <span
-                              className={coursedata.credit===null?"color-white fl font-16 bannerurlis":"color-white fl font-16 bannerurli"}>
-															{coursedata.student_count}
-                            </span>
-                          </Link>
-                        </li>
+                        {/*<li className={"mt7 teachersbox"}>*/}
+                          {/*<Link to={"/courses/"+this.props.match.params.coursesId+"/students"}>*/}
+                            {/*<span className="color-grey-c fl font-16">学生</span>*/}
+                            {/*<span*/}
+                              {/*className={coursedata.credit===null?"color-white fl font-16 bannerurlis":"color-white fl font-16 bannerurli"}>*/}
+															{/*{coursedata.student_count}*/}
+                            {/*</span>*/}
+                          {/*</Link>*/}
+                        {/*</li>*/}
 
                         {/*<li className={"mt7"}>*/}
                         {/*<a>*/}
@@ -514,13 +533,13 @@ class CoursesBanner extends Component {
                         {/*</a>*/}
                         {/*</li>*/}
 
-                        {coursedata.credit===null?"":<li className={"mt7"}>
-                          <a>
-                            <span className="color-grey-c fl font-16 mr10">学分</span>
-                            <span className="color-white fl font-16 "
-                            >{coursedata.credit}</span>
-                          </a>
-                        </li>}
+                        {/*{coursedata.credit===null?"":<li className={"mt7"}>*/}
+                          {/*<a>*/}
+                            {/*<span className="color-grey-c fl font-16 mr10">学分</span>*/}
+                            {/*<span className="color-white fl font-16 "*/}
+                            {/*>{coursedata.credit}</span>*/}
+                          {/*</a>*/}
+                        {/*</li>}*/}
 
                         {/*{coursedata.course_end===true? <li className={"mt7"}>*/}
                         {/*<span className="color-grey-c fl font-16">已结束</span>*/}