diff --git a/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js b/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
index a03d4e522..35b06f305 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
@@ -758,14 +758,14 @@ class Coursesleftnav extends Component{
       {/*{item.type==="course_group"? :""}*/}
       <div onClick={e=>this.Navmodalnames(e,3,"editname",item.id,item.name)}>重命名</div>
       {/*online_learning*/}
-      {
-        this.props.isClassManagement()===true?
-          (
-            item.type==="online_learning"?
-              <div onClick={e=>this.Chapterediting(e,item.id,item.url)}>章节编辑</div>
-            :""
-          )
-          :""}
+      {/*{*/}
+      {/*  this.props.isClassManagement()===true?*/}
+      {/*    (*/}
+      {/*      item.type==="online_learning"?*/}
+      {/*        <div onClick={e=>this.Chapterediting(e,item.id,item.url)}>章节编辑</div>*/}
+      {/*      :""*/}
+      {/*    )*/}
+      {/*    :""}*/}
       <div onClick={e=>this.edithidden(e,item.id)}>隐藏</div>
       <div onClick={e=>this.editSetup(e,item.id)}>置顶</div>
     </div>)
@@ -840,27 +840,27 @@ class Coursesleftnav extends Component{
            >
            </Modals>
 
-           {
-             this.state.chapterupdate===true?
-               <div>
-                 <style>
-                   {
-                     `
-                 .ant-modal-body{
-                    padding-left: 33px !important;
-                    padding-right: 33px !important;
-                    padding-top: 27px !important;
-                    padding-bottom: 21px !important;
-                   }
-               `
-                   }
-                 </style>
-               <MyEduChapterupdate  {...this.props} {...this.state} chapterupdate={this.state.chapterupdate} setchapterupdatefalse={this.setchapterupdatefalse}>
-               </MyEduChapterupdate>
-               </div>
-               :
-               ""
-           }
+           {/*{*/}
+           {/*  this.state.chapterupdate===true?*/}
+           {/*    <div>*/}
+           {/*      <style>*/}
+           {/*        {*/}
+           {/*          `*/}
+           {/*      .ant-modal-body{*/}
+           {/*         padding-left: 33px !important;*/}
+           {/*         padding-right: 33px !important;*/}
+           {/*         padding-top: 27px !important;*/}
+           {/*         padding-bottom: 21px !important;*/}
+           {/*        }*/}
+           {/*    `*/}
+           {/*        }*/}
+           {/*      </style>*/}
+           {/*    <MyEduChapterupdate  {...this.props} {...this.state} chapterupdate={this.state.chapterupdate} setchapterupdatefalse={this.setchapterupdatefalse}>*/}
+           {/*    </MyEduChapterupdate>*/}
+           {/*    </div>*/}
+           {/*    :*/}
+           {/*    ""*/}
+           {/*}*/}
 
            {
              Navmodalnametype===true?<style>
diff --git a/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js b/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js
index 100db5794..f38acad9c 100644
--- a/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js
+++ b/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js
@@ -64,7 +64,7 @@ const treeData = [
 	},
 ];
 class MyEduChapterupdate extends Component {
-
+   //树状图
 	constructor(props) {
 		super(props);
 		this.state={