diff --git a/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js b/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
index 71ce6a4ea..b640f9b37 100644
--- a/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
+++ b/public/react/src/modules/courses/shixunHomework/Listofworksstudentone.js
@@ -252,15 +252,18 @@ class Listofworksstudentone extends Component {
 							}
 						}>
 							{record.cost_time === null? "--":record.cost_time === undefined?"--":
-								<a style={
-									{
-										color: '#747A7F',
-										textAlign: "center"
+								<Tooltip  placement="bottom" title={<div>
+									学员在EduCoder做实训花费的时间
+								</div>}>
+									<span style={
+										{
+											color: '#747A7F',
+											textAlign: "center"
+										}
 									}
-								}
-									 title={"学员在EduCoder做实训花费的时间"}
-								>{record.cost_time === null ? "--":record.cost_time === undefined ?"--":record.cost_time}
-								</a>
+									>{record.cost_time === null ? "--":record.cost_time === undefined ?"--":record.cost_time}
+									</span>
+								</Tooltip>
 							}
 						</span>
 					)
@@ -525,15 +528,18 @@ class Listofworksstudentone extends Component {
 							}
 						}>
 							{record.cost_time === null? "--":record.cost_time === undefined?"--":
+								<Tooltip  placement="bottom" title={<div>
+									学员在EduCoder做实训花费的时间
+								</div>}>
 								<a style={
 									{
 										color: '#747A7F',
 										textAlign: "center"
 									}
 								}
-									 title={"学员在EduCoder做实训花费的时间"}
 								>{record.cost_time === null ? "--":record.cost_time === undefined ?"--":record.cost_time}
 								</a>
+								</Tooltip>
 							}
 						</span>
 				// 		<a style={
@@ -848,15 +854,18 @@ class Listofworksstudentone extends Component {
 							}
 						}>
 							{record.cost_time === null ? "--":record.cost_time === undefined ?"--":
+								<Tooltip  placement="bottom" title={<div>
+									学员在EduCoder做实训花费的时间
+								</div>}>
 								<a style={
 									{
 										color: '#747A7F',
 										textAlign: "center"
 									}
 								}
-									 title={"学员在EduCoder做实训花费的时间"}
 								>{record.cost_time === null ? "--":record.cost_time === undefined ?"--":record.cost_time}
 								</a>
+								</Tooltip>
 							}
 						</span>
 					)