diff --git a/public/react/src/modules/message/js/MessagSub.js b/public/react/src/modules/message/js/MessagSub.js
index fb08441a4..12a922ea9 100644
--- a/public/react/src/modules/message/js/MessagSub.js
+++ b/public/react/src/modules/message/js/MessagSub.js
@@ -186,7 +186,13 @@ class MessagSub extends Component{
 				return    window.open(`/courses/${item.belong_container_id}/teachers`)
 			case 'StudentJoinCourse':
 				// 课堂详情页 :id = container_id
-				return   window.open(`/courses/${item.belong_container_id}`)
+				if(item.tiding_type === 'Apply') {
+					return   window.open(`/courses/${item.belong_container_id}/teachers`);
+				}
+				if(item.tiding_type === 'System'){
+					//教学案例详情 :id = container_id
+					return   window.open(`/courses/${item.belong_container_id}/students`);
+				}
 			case  'DealCourse':
 				// 课堂详情页 :id = container_id
 				return   window.open(`/courses/${item.belong_container_id}/shixun_homeworks/${item.container_id}`)
@@ -287,10 +293,12 @@ class MessagSub extends Component{
 				switch (item.parent_container_type) {
 					case "CommitExercise":
 						// 课堂-学生试卷详情 :id = container_id :user_id = trigger_user.id
-						return window.open(`	/courses/${item.belong_container_id}/exercises/${item.container_id}/student_exercise_list?tab=0`)
+						return window.open(`	/courses/${item.belong_container_id}/exercises/${item.container_id}/student_exercise_list?tab=0`);
+					//记得跳评阅页面
 					case "ExerciseScore":
 						// 课堂-学生试卷详情 :id = container_id :user_id = trigger_user.id
-						return window.open(`	/courses/${item.belong_container_id}/exercises/${item.container_id}/student_exercise_list?tab=0`)
+						return window.open(`	/courses/${item.belong_container_id}/exercises/${item.container_id}/student_exercise_list?tab=0`);
+						//记得跳评阅页面
 					default :
 						// 课堂-试卷列表详情 :id = container_id
 						return window.open(`/courses/${item.belong_container_id}/exercises/${item.container_id}`)
@@ -554,7 +562,7 @@ class MessagSub extends Component{
 													 	`
 													 }
 												 </style>
-												 <p className="color-grey-6 break_word_firefox yslspansk markdown-body" style={{wordBreak: "break-word"}} dangerouslySetInnerHTML={{__html: markdownToHTML(item.content).replace(/▁/g, "▁▁▁")}} ></p>
+												 <p className="color-grey-6 break_word_firefox yslspansk markdown-body mt3" style={{wordBreak: "break-word"}} dangerouslySetInnerHTML={{__html: markdownToHTML(item.content).replace(/▁/g, "▁▁▁")}} ></p>
 											 </div>
 
 											 <span className={item.new_tiding===true?"new-point fr mr40 mt22":""}></span>