diff --git a/public/react/src/modules/courses/graduation/tasks/GraduationTaskssettinglist.js b/public/react/src/modules/courses/graduation/tasks/GraduationTaskssettinglist.js
index 7ef1f99c5..9e0573a1c 100644
--- a/public/react/src/modules/courses/graduation/tasks/GraduationTaskssettinglist.js
+++ b/public/react/src/modules/courses/graduation/tasks/GraduationTaskssettinglist.js
@@ -1357,7 +1357,7 @@ class GraduationTaskssettinglist extends Component{
 													  <a  id="graduation_comment_no_limit"  alue={null} className={teacher_comment===null?"pl10 pr10 check_on":"pl10 pr10 "} onClick={this.funteachercomment}>不限</a>
 												  </span>
 													<CheckboxGroup value={teacher_comment} onChange={(e)=>this.funteachercomment(e,taskslistdata.search_assistants&&taskslistdata.search_assistants.teacher_comment.length)} style={{ paddingTop: '4px'}}>
-													{taskslistdata.search_assistants&&taskslistdata.search_assistants.teacher_comment.map((item,key)=>{
+													{taskslistdata.search_assistants && taskslistdata.search_assistants.teacher_comment && taskslistdata.search_assistants.teacher_comment.map((item,key)=>{
 														return(
 															<span key={key}>
 																  <Checkbox value={item.id}  onClick={this.funteachercomment} className="fl ">{item.name}
@@ -1499,7 +1499,7 @@ class GraduationTaskssettinglist extends Component{
 													pagination={false}
 													loading={loadingstate}
 													onChange={this.TablePagination}
-
+													className="edu-txt-center"
 												/>}
 												</div>
 											</div>
@@ -1740,6 +1740,7 @@ class GraduationTaskssettinglist extends Component{
 																	pagination={false}
 																	loading={loadingstate}
 																	onChange={this.TablePagination}
+																	className="edu-txt-center"
 																/>}
 															</div>
 														</div>