diff --git a/public/react/src/modules/courses/shixunHomework/shixunreport/Shixunechart.js b/public/react/src/modules/courses/shixunHomework/shixunreport/Shixunechart.js
index d19835f3b..2deffd5c5 100644
--- a/public/react/src/modules/courses/shixunHomework/shixunreport/Shixunechart.js
+++ b/public/react/src/modules/courses/shixunHomework/shixunreport/Shixunechart.js
@@ -370,7 +370,7 @@ class Shixunechart extends Component {
 						</div>
 						<div className="fl with65" style={{paddingLeft: "5%"}}>
 							<li className="mt5 mb5">{data&&data.username}</li>
-							<li className="mt5 mb5">{data!==undefined?"无":data.student_id===undefined?"无":data.student_id===null?"无":data.student_id}</li>
+							<li className="mt5 mb5">{data!==undefined?"--":data.student_id===undefined?"--":data.student_id===null?"--":data.student_id}</li>
 							<li className="mt5 mb5 color-orange03"><span className="color-orange03">{data&&data.echart_data===undefined?"":data&&data.echart_data.myself_eff[1]}</span></li>
 							<li className="mt5 mb5 color-orange03"><span className="color-orange03">{data&&data.echart_data===undefined?"":data&&data.echart_data.myself_eff[0]}</span></li>
 						</div>
@@ -396,7 +396,7 @@ class Shixunechart extends Component {
 							</div>
 							<div className="fl with65" style={{paddingLeft: "5%"}}>
 								<li className="mt5 mb5">{data&&data.username}</li>
-								<li className="mt5 mb5">{data!==undefined?"无":data.student_id===undefined?"无":data.student_id===null?"无":data.student_id}</li>
+								<li className="mt5 mb5">{data!==undefined?"--":data.student_id===undefined?"--":data.student_id===null?"--":data.student_id}</li>
 								<li className="mt5 mb5 color-orange03"><span className="color-orange03">{data&&data.echart_data===undefined?"":data&&data.echart_data.myself_object[1]}</span></li>
 							</div>
 						</div>