diff --git a/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js b/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js
index eeb0bc199..e3b07078b 100644
--- a/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js
+++ b/public/react/src/modules/courses/coursesDetail/MyEduChapterupdate.js
@@ -41,6 +41,21 @@ const treeData = [
 			{ title: '0-1-0-0', key: '0-1-0-0' },
 			{ title: '0-1-0-1', key: '0-1-0-1' },
 			{ title: '0-1-0-2', key: '0-1-0-2' },
+			{ title: '0-1-0-3', key: '0-1-0-3' },
+			{ title: '0-1-0-4', key: '0-1-0-4' },
+			{ title: '0-1-0-5', key: '0-1-0-5' },
+			{ title: '0-1-0-6', key: '0-1-0-6' },
+			{ title: '0-1-0-7', key: '0-1-0-7' },
+			{ title: '0-1-0-8', key: '0-1-0-8' },
+			{ title: '0-1-0-9', key: '0-1-0-9' },
+			{ title: '0-1-0-10', key: '0-1-0-10' },
+			{ title: '0-1-0-11', key: '0-1-0-11' },
+			{ title: '0-1-0-12', key: '0-1-0-12' },
+			{ title: '0-1-0-13', key: '0-1-0-13' },
+			{ title: '0-1-0-14', key: '0-1-0-15' },
+			{ title: '0-1-0-16', key: '0-1-0-16' },
+			{ title: '0-1-0-17', key: '0-1-0-17' },
+			{ title: '0-1-0-18', key: '0-1-0-18' },
 		],
 	},
 	{
@@ -79,6 +94,16 @@ class MyEduChapterupdate extends Component {
 			myeduchecked:e.target.checked,
 		})
 		// console.log(`checked = ${e.target.checked}`);
+		if(e.target.checked===true){
+			this.setState({
+				checkedKeys:['0-0','0-1','0-2'],
+			})
+		}else {
+			this.setState({
+				checkedKeys:[],
+			})
+
+		}
 	}
 
 	onExpand =(expandedKeys) => {
@@ -132,9 +157,24 @@ class MyEduChapterupdate extends Component {
 					width:"100%"
 				}}>
 					<div style={{
-						heigth:"459px",
-						width:"100%"
-					}}>
+						width:"100%",
+					}}
+					className="private-listtwo heigth459px"
+					>
+						<style>
+							{
+								`
+								span {
+								  max-width: 500px;
+									overflow:hidden;
+									text-overflow:ellipsis;
+									white-space:nowrap;
+									cursor: default;
+								}
+								`
+							}
+						</style>
+
 						<Tree
 							checkable
 							onExpand={this.onExpand}
diff --git a/public/react/src/modules/courses/coursesDetail/chapterupdate.css b/public/react/src/modules/courses/coursesDetail/chapterupdate.css
index 7d0853148..252bf334b 100644
--- a/public/react/src/modules/courses/coursesDetail/chapterupdate.css
+++ b/public/react/src/modules/courses/coursesDetail/chapterupdate.css
@@ -6,4 +6,29 @@
         display: flex;
         flex-direction: row-reverse;
 
+}
+.heigth459px{
+    max-height:459px;
+}
+.private-listtwo{
+    overflow-y: auto;
+    overflow-x: hidden;
+}
+/*滚动条*/
+.private-listtwo::-webkit-scrollbar {
+    width: 8px;
+    height: 8px;
+}
+
+
+.private-listtwo::-webkit-scrollbar-thumb {
+    background-color: #E3EBF4;
+    box-shadow: 0px 0px black;
+}
+
+
+.private-listtwo::-webkit-scrollbar-track {
+    border-radius:3px;
+    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0);
+    background-color: white;
 }
\ No newline at end of file