diff --git a/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js b/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
index 35b06f305..4715132f4 100644
--- a/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
+++ b/public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js
@@ -235,6 +235,7 @@ class Coursesleftnav extends Component{
       navidtype=true
     }
    this.props.updataleftNavfun()
+		// this.scrollToAnchor()
   }
 
   setnavid=(e,key,id,type,url)=>{
@@ -802,6 +803,11 @@ class Coursesleftnav extends Component{
       chapterupdate:false,
     })
   }
+
+	//跳转道描点的地方
+	scrollToAnchor = () => {
+
+	}
   render(){
      let {
        twosandiantype,
@@ -823,7 +829,6 @@ class Coursesleftnav extends Component{
 
     // console.log("778");
     // console.log("CoursesLeftNav");
-    // console.log(course_modules);
 
     return(
 
@@ -976,6 +981,7 @@ class Coursesleftnav extends Component{
                                               ref={provided.innerRef}
                                               {...provided.droppableProps}
                                               className={"droppableul"}
+																							id={this.props.mainurl===item.category_url&&key===this.props.indexs?"scrolldroppableul"+this.props.match.params.category_id:""}
                                               style={{display: this.props.mainurl===item.category_url&&key===this.props.indexs?"":"none"}}
                                               >
                                                   {item.second_category===undefined?"":item.second_category.map((iem,index)=>{
@@ -999,7 +1005,7 @@ class Coursesleftnav extends Component{
                                                                      visible={false}
                                                             >
                                                               {/*"/courses/"+this.props.match.params.coursesId+"/"+item.type+"/"+iem.category_type+"/"+iem.category_id*/}
-                                                              <a  className={"Draggablelichild"}>
+                                                              <a  className={"Draggablelichild"} id={"scroll"+iem.category_id} ref={"scroll"+iem.category_id}>
                                                               <li className="clearfix width93 Draggableli" key={index} onClick={(e)=>this.selectnavids(e,key,iem.category_id,item.type+"child",iem.second_category_url,key)}  onMouseLeave={(e)=>this.twosandianhide(e,index,item.type)} onMouseEnter={(e)=>this.twosandianshow(e,index,item.type)}
                                                               key={index}
                                                               ref={provided.innerRef}
@@ -1073,7 +1079,11 @@ class Coursesleftnav extends Component{
 
                    {/*下拉列表*/}
                    {/* className={this.props.location.pathname===item.category_url||this.props.location.pathname===this.state.url&&key===this.state.indexs?"":""}*/}
-                   <ul style={{display:this.props.mainurl===item.category_url&&key===this.props.indexs?"":"none"}} class="droppableul">
+                   <ul
+										 style={{display:this.props.mainurl===item.category_url&&key===this.props.indexs?"":"none"}}
+										 class="droppableul"
+										 id={this.props.mainurl===item.category_url&&key===this.props.indexs?"scrolldroppableul"+this.props.match.params.category_id:""}
+									 >
 
                      {
                        item.second_category===undefined?"":item.second_category.map((iem,index)=>{
@@ -1085,7 +1095,7 @@ class Coursesleftnav extends Component{
                            }
                          }
                          return(
-                           <a >
+                           <a id={"scroll"+iem.category_id} ref={"scroll"+iem.category_id}>
                                <li className="clearfix Draggableli" key={index} style={{ width: '244px'}} title={iem.category_name.length<10?"":iem.category_name}>
                                  <a className="fl pl46 pd0 Draggablelichild" onClick={(e)=>this.selectnavids(e,key,iem.category_id,item.type+"child",iem.second_category_url,key)} >