diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
index a3a3be028..307823ee8 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challenges.js
@@ -1,18 +1,18 @@
-import React, { Component } from 'react';;
+import React, { Component } from 'react';
 
 import { Link } from "react-router-dom";
 
-import { getImageUrl ,markdownToHTML, configShareForCustom} from 'educoder'
+import { getImageUrl ,markdownToHTML, configShareForCustom} from 'educoder';
 
 import { CircularProgress } from 'material-ui/Progress';
 
 import { Modal, Spin, Tooltip ,message,Icon,Button,Divider} from 'antd';
 
-import 'antd/lib/pagination/style/index.css';
+import axios from 'axios';
 
-import '../shixunchildCss/Challenges.css'
+import 'antd/lib/pagination/style/index.css';
 
-import axios from 'axios';
+import '../shixunchildCss/Challenges.css';
 
 import AccountProfile from"../../../user/AccountProfile";